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42 Inch Plasma DisplayTraining &
Trouble Shooting Guide
G-5
PDP-42A3HD
PDP-4214HD
Technical Training Department1925 E. Dominguez StreetLong Beach, CA 90810
Contents
Controls and Connections……..…...4~7 Front View……………….……………….4 Rear View…………………………….…..5 Remote Control………..…………..…...6~7 Basic Block Diagrams………….……8~15 Overall Block Diagram…….....…………8 ATSC Tuner Tuner Block……….……...9 Digital Block……………………..….....10~11 DTT and Analog Block……..….…..…12~13 Display Block Description & Factory Mode…………………….…14~15 Signal Flow Block Diagrams………16~28 Analog Tuner Input Main Flow……..…16 Analog Tuner Input Sub Block…….….17 Composite Input Main…………………18 Composite Input Sub…………………..19 S Input Main………………………….…20 S Input Sub……………………………..21 ATSC (HD Signal) Main……………….22 ATSC (HD Signal) Sub………………..23 Component Input Main………………..24 Component Input Sub…………………25 HDMI Input Main……………………….26 HDMI Input Sub………………………..27 Caption Input…………………………..28 Input and Tuner Board Locations……29 .
White Balance Adjustment.…….…...30 Power Down Tip………….…………..31 Troubleshooting (Tuner Module)...32~73 No Power………………………………32~33 No HDMI………………..………..…....34~35 No Component Signal………….…....36~37 No TV Signal………...………….…….38~39 No Video or No S Video Signal….….40~43 No Audio…………………………….…44~50 No Caption………………………….…52~53 No Remote Control Operation………54~55 No Key Control………………………..56~57 DTT Board Troubleshooting…………58~73 Disassembly………………………...…74~77 Troubleshooting (PDP Panel)….….78~99 Required Tools…………………….….78 Parts List (Boards & Versions)………79 Basic Troubleshooting Flow Chart.….81 Model & Serial Number Location….…82 Panel Crack Identification…………….82 Connectors and Cables……………...83~86 Vertical or Horizontal Lines………..…87 No Picture………………………….…..88~90 Abnormalities in the Picture……….…91 Power Off………………………………92~95 Detaching Connectors & Boards……96~99 Adjustments……………………….…100~101
Plasma Display
1 POWER button
2 STANDB Y indicator
3 Current input source indicators
4 Remote control sensor
5 INP UT button
Front view
STANDBY/ON
STANDB Y
/ON
PO WE R
POWE R DTV TV VCR DV D HDM ISTANDBY
DTV TV VC R DVD HDMISTANDBY
5 9 101
6
3 42
7 8
6 OK button
7 MENU button
8 VOLUME –/+ buttons
9 CHANNEL –/+ button s
10 STANDB Y/ON button
4
Rear view
The terminals have faced downward.
1
INPUT
AUDIO
R
L
VIDEO 3
S-VIDEO 3
2 3 4 8 9 106 7
DTV-ANTENNA IN
ANTENNA/ CABLE IN MONITOR OUT
VIDEOVIDEO 1 L-AUDIO-R S-VIDEO 1
AUDIODIGITAL OUT
OPTICAL
R
L
HDMIINPUT
SERVICE ONLY AC INAUDIOHDMI
R
LVIDEO 2 L-AUDIO-R
L-AUDIO-R Y
L-AUDIO-R Y
CB/PB
CB/PB
CR/PR
CR/PR
COMPONENT 2
COMPONENT 1
S-VIDEO 2
5
1 VIDEO 3 terminals (AUDIO/VIDEO/S-VIDEO)2 DTV-ANTENNA IN terminal 3 ANTENNA/CABLE IN terminal 4 MONITOR OUT terminals (AUDIO/VIDEO)5 DIGITAL OUT terminal (OPTICAL)6 VIDEO 1/VIDEO 2 terminals (AUDIO/VIDEO/ S-VIDEO)
7 COMPONENT 1/COMPONENT 2 terminals (COMPONENT VIDEO/AUDIO)8 HDMI terminal (AUDIO/HDMI)9 RS-232C terminal (service only) 10 AC IN terminal
5
Remote control unit
SPLIT SPLIT P IN P SWAP
SPLIT SPLIT
DTVSIGNAL MTS LIST
CHDELETE
INPUT SHIFT
CH+ CH–
MUTING VOLCH
C.C.
FAVORITECH
CHRETURN
EXIT BACK
MENU
SLEEP
DISPLAY
SCREEN SIZESOUND EFFECT
HD WIDEINPUTTV
AV SELECTION
11 3322
44 6655
77 9988
CHENTER00
OK
12
34
5
6
8
9
1011
12
13
14
15
16
19
2021
22
17
18
7
1 HD WIDE : Adjusts the picture to fit the 16:9wide aspect ratio. Available in DTV mode.
2 INP UT : Displays all available input sources. Press the \ or
\
button to select the requiredinput source.
3 AV SELECTION : Selects the picture mode(Standard, Dynamic, Movie, Game or User).
4 SOUND EFFECT : Selects the sound effect(Flat, Speech, Movie, Music or User).
5 0-9 : Select the channel.
6 (dot) : Selects the sub-channel of DTV.
7 C.C.: Display captions while in the closed- caption source.
8 FAVORITE CH : Selects the favorite channel.
9 \ / | /|/\: Controls the cursor in the on-screen menu.
10 CH RETURN : Returns the selected channels.
11 EXIT : Exits from any display.
12 CH +/ –: Changes the channel.
13 MUTING: Mutes the sound. To turn the sound back on, press the MUTING, VOL+ orVOL – buttons.
14 TV : Switches between operation andstandby mode.
15 SCREEN SIZE: Changes the aspect ratio ofthe screen (Zoom/Cinema/Full/4:3/Wide).
16 CH ENTER: Enters channels.
17 SLEEP: Sets the sleep timer.
18 DISPL AY: Shows the display.
19 OK: Executes a command.
20 MENU : Displays the on-screen menu .
21 BACK: Returns to the previous menu screen.
22 VOL +/–:Sets the volume.
6
SPLIT SPLIT P IN P SWA P
SPLIT SPLIT
DTVSIGNAL MT S LIST
FAVORITECH DELETE
INPUT SHIFT
CH + CH–
MUTING VO LCH
SPLIT SPLIT P IN P SWA P
SPLIT SPLIT
DTVSIGNAL MTS LIST
CHDELETE
INPUT SHIFT
CH+ CH–
2425
2627
23
23 SPLIT Function Buttons
SPLIT : Selects the SPLIT mode (Off, PIP, Twin1 or Twin2).
SPLIT INPUT : Selects an input source for thesub picture.
P IN P/SHIFT : Selectsa position for the sub-picture.
SWAP : Interchanges the main picture andsub-picture.
SPLIT CH +, SPLIT CH – : Changes thechannel of the sub-picture.
24 DTV SIGNAL : Displays the signal strengthand quality.
25 MTS : Selects the sound mode .
26 CH DELETE: Deletes a channel in Edit Chan-nel List.
27 LIST : Displays the channel list. Press the
|
or
| button to select the required channel.
• W hen using the remote control unit, point it at the Plasma Display.
Slid e
7
8
C
ter
(ATSC)
C YPbPr Out
P/108 0i)
nication)
)
)
/R ATSC
+3.3V
+A6VCC
+2.5V
eg.
SC CVBS Out
CommunicationTo Disp lay Board
PDIF Out
MDIN
150
MDIN
150
. DC-D
Conver
NTSCNTSC
ATSCATSC
Analog
Tuner
Digital
Tuner
Channel
Decoder
EEPROM
16KB
Flash
4MByte
DDR SDRM
32MByte
DDR SDRM
32MByte
CVBS NTSC
Jack Ant
IIS
ATS
(720
UART0 (Commu
UART1 (RS232C
UART2 (RS232CFor Debug
Audio DAC
Audio DAC L
CPU
(TL955B2-SH)
+2.5V+1.2V
+3.3V
+5.0V
+2.5V
+1.2V Linear R
AT
SIF_A
3
ATSATSC S/PDIF/PDIF
Digital-SW
Digital-SW S/
9
A
B
C
D
G
H
I
1. Digital PCB Block
A : Component Video input Block(BA7657)B : ADC and HDMI receiver Block(MST3388M)C : Real Timer Block(M41T81)D : RS232 communication partE : Micom Block(SDA6001+K4S641632H-TC60+AM29LV160DT)F : Deinterlace Block(MDIN150+K4S643232H-TC60)G : Sub-Video Decoder Block(VPC3230)H : Scaler Block(ASI510)I : LVDS transmitter Block(DS90C387)
10
Block Description of DTT
1. DC-DC Block is composed of Regulators(BA05(5V), LP3965ES(1.2V), LP2995MX(VREF,VTT)) and
SMPS powers(2V5VCC,3V3VCC,A6VCC).
2. UART Communication is composed of UART1(Communication), UART2(RS232), UART3(RS232 for
debug)
3. The EEPROM block stores the current states, channels, and other user setting values.
4. The Flash Rom block stores operation source.
5. ATSC input block is composed of Digital tuner(DTT7608) and channel Decorder(LGDT3303).
6. NTSC input block is composed of Analog Tuner and connects in Video decorder(uPD64012).
7. DDR SDRAM block is composed of 4 32MByte and stores the current Video and information
instantly.
8. The CPU block functions MPEG decoder, converts the video format and controls the related IC's.
9. The Audio DAC converts from IIC Audio to L/R Analog Audio.
10. The SPDIF outputs 5.1Ch Dolby Digital audio signal.
11
A
B
CF
D
E
G
J
2. DTT & Analog PCB Block
A : Channel Demodulator Block(LGDT3303)B : ATSC Tuner Block(DTT7608)C : Analog Tuner Block(FQ1236)D : DDR SDRAM Block(HY5DU281622ET-H x 4)E : MPEG Decoder Block(TL955B2-SH)F : Audio Decoder Block(MSP4440)G : Video Switch Block(CX2069Q)H : Flash Rom Block(E28F320J3A)I : Power input BlockJ : Main Video decoder Block(uPD64012+HY57V161610DTC-7)
12
A
B
C
D
3. Digital PCB Block
A : Indication LED BlockB : Audio AMP Block(TA2024B)C : AV input BlockD : Control key Block
13
Block Description of Display
1. The ADC & HDMI receiver used on this board (MST3388-110). 2. The Video Decoder is composed of uPD64012 and VPC3230, converts from analog signal to
digital video signal. UPD64012 is used for 480I sub picture only.3. The CXA2069 switches input signal and selects the signal. Analog Only (Tuner,YC and composite).4. The MDIN150 is de-interlacer, it functions that interlaced signal converts de-interlaced signal and
improves picture quality. (I/P Converter)5. The ASI510 is scaler IC, scaling video signal it interfaces with related IC and outputs 24 bit RGB
format video.
6. The SDA6001 is composed of micom and closed caption block, it controls related IC, power on/off
system, and signal flowing system.
7. IO expander functions that it increases the IO port from receiving IIC communication signal.
8. The real timer(M41T81) is timer with using the clock generator.
Factory Mode
1. •To enter the test mode press keys on remote control in sequence as below.
TV/AV 0 9 1 7 •You can make adjustments, but proper settings are very critical for set operations .
2. Self-check mode and error code is not applicable in this set.
14
CVBS 1CVBS 1
J-
L003
J-
L003
MAX232MAX232
MDIN
150
MDIN
150
A-INE[23:0]
D-INO[23:0]
D-H/V Sync & clk
CVBS 2CVBS 2
CVBS 3CVBS 3
Y/C 1Y/C 1
Y/C 2Y/C 2
uPD
64012
CVBS1
Y1/C1
CVBS2/Y2
C2
V-IN [15:0]
V-H/V Sync & clk
RealTimer
(M41T81)
RealTimer
(M41T81)
IIC5Vst
CXA2069
(A_S/W)
RS232CRS232C
LVDS Tx
DS90C387
30
I/OExpender
Audio (2069,
MSP44X0,
4052)
Audio (2069,
MSP44X0,
4052)
L/R SC2(CXA2069)
L/R Main
(Power Amp)
Rx/Tx
P
Audio
MSP44X0
ASI510(Scaler)
MDIN
150
(I/P)
VPC3230
(Decode)
A-H/V Sync & clk
232C
Y/C 3Y/C 3Bat.Bat.
SIF _A
L/R Main(CXA2069)
L/R ATSC
L/R DTV1
L/R DTV2
8 Bit
MUX
CVBS & Audio
LINE_OUT
. M7V
. A6VCC
. A12VCC
. 12VCC
. 2V5VCC
. 3V3VCC
L/R SC2L/R SC2
L/R CVBS1L/R CVBS1
L/R CVBS2L/R CVBS2
L/R CVBS3L/R CVBS3
L/R DVIL/R DVI
Audio L-Main
Audio R-Main
(Video
Decode,
C/C & 3D)
8 Bit
MUX
24
5
24
16MICOM_CVBS
RGB/FB
For CC
HDMIHDMI
YPbPr 1YPbPr 1
YPbPr 2YPbPr 2
98869886MST3388
-110
76577657BA7657
~ 480P
IICSDA6000M
I/R
Key
LED
Tele-text
C/C
Rx/Tx
ATSC_CVBSATSC_CVBS
NTSC_CVBSNTSC_CVBS
ATSCATSCHDMI I2S & S/PDIF
HDMI I2S
LPF
RGB/FB
RGB
ATSC I2S
L/R Aux.
(Headphone)
To MSP
MICOM_CVBS
4
4
(~SOG)
(~DE)
Display BLOCK
MAX232MAX232AmpAmp Speaker
From MSP4440Output
15
CVBS 1CVBS 1
J-
L003
J-
L003
MAX232MAX232
MDIN
150
MDIN
150
A-INE[23:0]
D-INO[23:0]
D-H/V Sync & clk
CVBS 2CVBS 2
CVBS 3CVBS 3
Y/C 1Y/C 1
Y/C 2Y/C 2
uPD
64012
CVBS1
Y1/C1
CVBS2/Y2
C2
V-IN [15:0]
V-H/V Sync & clk
RealTimer
(M41T81)
RealTimer
(M41T81)
IIC5Vst
CXA2069
(A_S/W)
RS232CRS232C
LVDS Tx
DS90C387
30
I/OExpender
Audio (2069,
MSP44X0,
4052)
Audio (2069,
MSP44X0,
4052)
L/R SC2(CXA2069)
Panel
L/R Main
(Power Amp)
Rx/Tx
Audio
MSP44X0
ASI510(Scaler)
MDIN
150
(I/P)
VPC3230
(Decoder)
A-H/V Sync & clk
232C
Y/C 3Y/C 3Bat.Bat.
SIF _A
L/R Main(CXA2069)
L/R ATSC
L/R DTV1
L/R DTV2
8 Bit
MUX
CVBS & Audio
LINE_OUT
. M7V
. A6VCC
. A12VCC
. 12VCC
. 2V5VCC
. 3V3VCC
L/R SC2L/R SC2
L/R CVBS1L/R CVBS1
L/R CVBS2L/R CVBS2
L/R CVBS3L/R CVBS3
L/R DVIL/R DVI
Audio L-Main
Audio R-Main
(Video
Decode,
C/C & 3D)
8 Bit
MUX
24
5
24
16MICOM_CVBS
RGB/FB
For CC
HDMIHDMI
YPbPr 1YPbPr 1
YPbPr 2YPbPr 2
MST3388
-110
76577657BA7657
~ 480P
SDA6001
I/R
Key
LED
IIC
ATSC_CVBSATSC_CVBS
NTSC_CVBSNTSC_CVBS
ATSCATSCHDMI I2S & S/PDIF
HDMI I2S
LPF
RGB/FB
RGB
ATSC I2S
L/R Aux.
(Headphone)
To MSP
MICOM_CVBS
4
4
(~SOG)
(~DE)
ATV Input(Main)
MAX232MAX232AmpAmp
SpeakerFrom MSP4440Output
Tele-text
C/CRx/Tx
16
CVBS 1CVBS 1
J-
L003
J-
L003
MAX232MAX232
MDIN
150
MDIN
150
A-INE[23:0]
D-INO[23:0]
D-H/V Sync & clk
CVBS 2CVBS 2
CVBS 3CVBS 3
Y/C 1Y/C 1
Y/C 2Y/C 2
uPD
64012
CVBS1
Y1/C1
CVBS2/Y2
C2
V-IN [15:0]
V-H/V Sync & clk
RealTimer
(M41T81)
RealTimer
(M41T81)
IIC5Vst
CXA2069
(A_S/W)
RS232CRS232C
LVDS Tx
DS90C387
30
I/OExpender
Audio (2069,
MSP44X0,
4052)
Audio (2069,
MSP44X0,
4052)
L/R SC2(CXA2069)
L/R Main
(Power Amp)
Rx/Tx
Panel
Audio
MSP44X0
ASI510(Scaler)
MDIN
150
(I/P)
VPC3230
(Decoder)
A-H/V Sync & clk
232C
Y/C 3Y/C 3Bat.Bat.
SIF _A
L/R Main(CXA2069)
L/R ATSC
L/R DTV1
L/R DTV2
8 Bit
MUX
CVBS & Audio
LINE_OUT
. M7V
. A6VCC
. A12VCC
. 12VCC
. 2V5VCC
. 3V3VCC
L/R SC2L/R SC2
L/R CVBS1L/R CVBS1
L/R CVBS2L/R CVBS2
L/R CVBS3L/R CVBS3
L/R DVIL/R DVI
Audio L-Main
Audio R-Main
(Video
Decode,
C/C & 3D)
8 Bit
MUX
24
5
24
16MICOM_CVBS
RGB/FB
For CC
HDMIHDMI
YPbPr 1YPbPr 1
YPbPr 2YPbPr 2
MST3388
-110
76577657BA7657
~ 480P
SDA6000M
I/R
Key
LED
IIC
ATSC_CVBSATSC_CVBS
NTSC_CVBSNTSC_CVBS
ATSCATSCHDMI I2S & S/PDIF
HDMI I2S
LPF
RGB/FB
RGB
ATSC I2S
L/R Aux.
(Headphone)
To MSP
MICOM_CVBS
4
4
(~SOG)
(~DE)
ATV Input(Sub)
MAX232MAX232AmpAmp Speaker
From MSP4440Output
Tele-text
C/CRx/Tx
17
CVBS 1CVBS 1
J-
L003
J-
L003
MAX232MAX232
MDIN
150
MDIN
150
A-INE[23:0]
D-INO[23:0]
D-H/V Sync & clk
CVBS 2CVBS 2
CVBS 3CVBS 3
Y/C 1Y/C 1
Y/C 2Y/C 2
uPD
64012
CVBS1
Y1/C1
CVBS2/Y2
C2
V-IN [15:0]
V-H/V Sync & clk
RealTimer
(M41T81)
RealTimer
(M41T81)
IIC5Vst
CXA2069
(A_S/W)
RS232CRS232C
LVDS Tx
DS90C387
30
I/OExpender
Audio (2069,
MSP44X0,
4052)
Audio (2069,
MSP44X0,
4052)
L/R SC2(CXA2069)
L/R Main
(Power Amp)
Rx/Tx
Panel
Audio
MSP44X0
ASI510(Scaler)
MDIN
150
(I/P)
VPC3230
(Decoder)
A-H/V Sync & clk
232C
Y/C 3Y/C 3Bat.Bat.
SIF _A
L/R Main(CXA2069)
L/R ATSC
L/R DTV1
L/R DTV2
8 Bit
MUX
CVBS & Audio
LINE_OUT
. M7V
. A6VCC
. A12VCC
. 12VCC
. 2V5VCC
. 3V3VCC
L/R SC2L/R SC2
L/R CVBS1L/R CVBS1
L/R CVBS2L/R CVBS2
L/R CVBS3L/R CVBS3
L/R DVIL/R DVI
Audio L-Main
Audio R-Main
(Video
Decode,
C/C & 3D)
8 Bit
MUX
24
5
24
16MICOM_CVBS
RGB/FB
For CC
HDMIHDMI
YPbPr 1YPbPr 1
YPbPr 2YPbPr 2
MST3388
-110
76577657BA7657
~ 480P
SDA6000M
I/R
Key
LED
IIC
ATSC_CVBSATSC_CVBS
NTSC_CVBSNTSC_CVBS
ATSCATSCHDMI I2S & S/PDIF
HDMI I2S
LPF
RGB/FB
RGB
ATSC I2S
L/R Aux.
(Headphone)
To MSP
MICOM_CVBS
4
4
(~SOG)
(~DE)
CVBS Input(Main)
MAX232MAX232AmpAmp
SpeakerFrom MSP4440Output
Tele-text
C/CRx/Tx
18
CVBS 1CVBS 1
J-
L003
J-
L003
MAX232MAX232
MDIN
150
MDIN
150
A-INE[23:0]
D-INO[23:0]
D-H/V Sync & clk
CVBS 2CVBS 2
CVBS 3CVBS 3
Y/C 1Y/C 1
Y/C 2Y/C 2
uPD
64012
CVBS1
Y1/C1
CVBS2/Y2
C2
V-IN [15:0]
V-H/V Sync & clk
RealTimer
(M41T81)
RealTimer
(M41T81)
IIC5Vst
CXA2069
(A_S/W)
RS232CRS232C
LVDS Tx
DS90C387
30
I/OExpender
Audio (2069,
MSP44X0,
4052)
Audio (2069,
MSP44X0,
4052)
L/R SC2(CXA2069)
L/R Main
(Power Amp)
Rx/Tx
Panel
Audio
MSP44X0
ASI510(Scaler)
MDIN
150
(I/P)
VPC3230
(Decoder)
A-H/V Sync & clk
232C
Y/C 3Y/C 3Bat.Bat.
SIF _A
L/R Main(CXA2069)
L/R ATSC
L/R DTV1
L/R DTV2
8 Bit
MUX
CVBS & Audio
LINE_OUT
. M7V
. A6VCC
. A12VCC
. 12VCC
. 2V5VCC
. 3V3VCC
L/R SC2L/R SC2
L/R CVBS1L/R CVBS1
L/R CVBS2L/R CVBS2
L/R CVBS3L/R CVBS3
L/R DVIL/R DVI
Audio L-Main
Audio R-Main
(Video
Decode,
C/C & 3D)
8 Bit
MUX
24
5
24
16MICOM_CVBS
RGB/FB
For CC
HDMIHDMI
YPbPr 1YPbPr 1
YPbPr 2YPbPr 2
MST3388
-110
76577657BA7657
~ 480P
SDA6000M
I/R
Key
LED
IIC
ATSC_CVBSATSC_CVBS
NTSC_CVBSNTSC_CVBS
ATSCATSCHDMI I2S & S/PDIF
HDMI I2S
LPF
RGB/FB
RGB
ATSC I2S
L/R Aux.
(Headphone)
To MSP
MICOM_CVBS
4
4
(~SOG)
(~DE)
CVBS Input(Sub)
MAX232MAX232AmpAmp Speaker
From MSP4440Output
Tele-text
C/CRx/Tx
19
CVBS 1CVBS 1
J-
L003
J-
L003
MAX232MAX232
MDIN
150
MDIN
150
A-INE[23:0]
D-INO[23:0]
D-H/V Sync & clk
CVBS 2CVBS 2
CVBS 3CVBS 3
Y/C 1Y/C 1
Y/C 2Y/C 2
uPD
64012
CVBS1
Y1/C1
CVBS2/Y2
C2
V-IN [15:0]
V-H/V Sync & clk
RealTimer
(M41T81)
RealTimer
(M41T81)
IIC5Vst
CXA2069
(A_S/W)
RS232CRS232C
LVDS Tx
DS90C387
30
I/OExpender
Audio (2069,
MSP44X0,
4052)
Audio (2069,
MSP44X0,
4052)
L/R SC2(CXA2069)
L/R Main
(Power Amp)
Rx/Tx
Panel
Audio
MSP44X0
ASI510(Scaler)
MDIN
150
(I/P)
VPC3230
(Decoder)
A-H/V Sync & clk
232C
Y/C 3Y/C 3Bat.Bat.
SIF _A
L/R Main(CXA2069)
L/R ATSC
L/R DTV1
L/R DTV2
8 Bit
MUX
CVBS & Audio
LINE_OUT
. M7V
. A6VCC
. A12VCC
. 12VCC
. 2V5VCC
. 3V3VCC
L/R SC2L/R SC2
L/R CVBS1L/R CVBS1
L/R CVBS2L/R CVBS2
L/R CVBS3L/R CVBS3
L/R DVIL/R DVI
Audio L-Main
Audio R-Main
(Video
Decode,
C/C & 3D)
8 Bit
MUX
24
5
24
16MICOM_CVBS
RGB/FB
For CC
HDMIHDMI
YPbPr 1YPbPr 1
YPbPr 2YPbPr 2
MST3388
-110
76577657BA7657
~ 480P
SDA6000M
I/R
Key
LED
IIC
ATSC_CVBSATSC_CVBS
NTSC_CVBSNTSC_CVBS
ATSCATSCHDMI I2S & S/PDIF
HDMI I2S
LPF
RGB/FB
RGB
ATSC I2S
L/R Aux.
(Headphone)
To MSP
MICOM_CVBS
4
4
(~SOG)
(~DE)
S Input(Main)
MAX232MAX232AmpAmp
SpeakerFrom MSP4440Output
Tele-text
C/CRx/Tx
20
CVBS 1CVBS 1
J-
L003
J-
L003
MAX232MAX232
MDIN
150
MDIN
150
A-INE[23:0]
D-INO[23:0]
D-H/V Sync & clk
CVBS 2CVBS 2
CVBS 3CVBS 3
Y/C 1Y/C 1
Y/C 2Y/C 2
uPD
64012
CVBS1
Y1/C1
CVBS2/Y2
C2
V-IN [15:0]
V-H/V Sync & clk
RealTimer
(M41T81)
RealTimer
(M41T81)
IIC5Vst
CXA2069
(A_S/W)
RS232CRS232C
LVDS Tx
DS90C387
30
I/OExpender
Audio (2069,
MSP44X0,
4052)
Audio (2069,
MSP44X0,
4052)
L/R SC2(CXA2069)
L/R Main
(Power Amp)
Rx/Tx
Panel
Audio
MSP44X0
ASI510(Scaler)
MDIN
150
(I/P)
VPC3230
(Decoder)
A-H/V Sync & clk
232C
Y/C 3Y/C 3Bat.Bat.
SIF _A
L/R Main(CXA2069)
L/R ATSC
L/R DTV1
L/R DTV2
8 Bit
MUX
CVBS & Audio
LINE_OUT
. M7V
. A6VCC
. A12VCC
. 12VCC
. 2V5VCC
. 3V3VCC
L/R SC2L/R SC2
L/R CVBS1L/R CVBS1
L/R CVBS2L/R CVBS2
L/R CVBS3L/R CVBS3
L/R DVIL/R DVI
Audio L-Main
Audio R-Main
(Video
Decode,
C/C & 3D)
8 Bit
MUX
24
5
24
16MICOM_CVBS
RGB/FB
For CC
HDMIHDMI
YPbPr 1YPbPr 1
YPbPr 2YPbPr 2
MST3388
-110
76577657BA7657
~ 480P
SDA6000M
I/R
Key
LED
IIC
ATSC_CVBSATSC_CVBS
NTSC_CVBSNTSC_CVBS
ATSCATSCHDMI I2S & S/PDIF
HDMI I2S
LPF
RGB/FB
RGB
ATSC I2S
L/R Aux.
(Headphone)
To MSP
MICOM_CVBS
4
4
(~SOG)
(~DE)
S Input(Sub)
MAX232MAX232AmpAmp Speaker
From MSP4440Output
Tele-text
C/CRx/Tx
21
CVBS 1CVBS 1
J-
L003
J-
L003
MAX232MAX232
MDIN
150
MDIN
150
A-INE[23:0]
D-INO[23:0]
D-H/V Sync & clk
CVBS 2CVBS 2
CVBS 3CVBS 3
Y/C 1Y/C 1
Y/C 2Y/C 2
uPD
64012
CVBS1
Y1/C1
CVBS2/Y2
C2
V-IN [15:0]
V-H/V Sync & clk
RealTimer
(M41T81)
RealTimer
(M41T81)
IIC5Vst
CXA2069
(A_S/W)
RS232CRS232C
LVDS Tx
DS90C387
30
I/OExpender
Audio (2069,
MSP44X0,
4052)
Audio (2069,
MSP44X0,
4052)
L/R SC2(CXA2069)
Panel
Rx/Tx
L/R Main
(Power Amp)
Audio
MSP44X0
ASI510(Scaler)
MDIN
150
(I/P)
VPC3230
(Decoder)
A-H/V Sync & clk
232C
Y/C 3Y/C 3Bat.Bat.
SIF _A
L/R Main(CXA2069)
L/R ATSC
L/R DTV1
L/R DTV2
8 Bit
MUX
CVBS & Audio
LINE_OUT
. M7V
. A6VCC
. A12VCC
. 12VCC
. 2V5VCC
. 3V3VCC
L/R SC2L/R SC2
L/R CVBS1L/R CVBS1
L/R CVBS2L/R CVBS2
L/R CVBS3L/R CVBS3
L/R DVIL/R DVI
Audio L-Main
Audio R-Main
(Video
Decode,
C/C & 3D)
8 Bit
MUX
24
5
24
16MICOM_CVBS
RGB/FB
For CC
HDMIHDMI
YPbPr 1YPbPr 1
YPbPr 2YPbPr 2
MST3388
-110
76577657BA7657
~ 480P
SDA6000M
I/R
Key
LED
IIC
Tele-text
C/C
ATSC_CVBSATSC_CVBS
NTSC_CVBSNTSC_CVBS
ATSCATSCHDMI I2S & S/PDIF
HDMI I2S
LPF
RGB/FB
RGB
ATSC I2S
L/R Aux.
(Headphone)
To MSP
MICOM_CVBS
4
4
(~SOG)
(~DE)
ATSC Input(Main)
AmpTA2024BAmp
TA2024B
From MSP4440Output
Speaker
Rx/Tx
22
CVBS 1CVBS 1
J-
L003
J-
L003
MAX232MAX232
MDIN
150
MDIN
150
A-INE[23:0]
D-INO[23:0]
D-H/V Sync & clk
CVBS 2CVBS 2
CVBS 3CVBS 3
Y/C 1Y/C 1
Y/C 2Y/C 2
uPD
64012
CVBS1
Y1/C1
CVBS2/Y2
C2
V-IN [15:0]
V-H/V Sync & clk
RealTimer
(M41T81)
RealTimer
(M41T81)
IIC5Vst
CXA2069
(A_S/W)
RS232CRS232CRx/Tx
LVDS Tx
DS90C387
30
I/OExpender
Audio (2069,
MSP44X0,
4052)
Audio (2069,
MSP44X0,
4052)
L/R SC2(CXA2069)
Panel
L/R Main
(Power Amp)
Audio
MSP44X0
ASI510(Scaler)
MDIN
150
(I/P)
VPC3230
(Decoder)
A-H/V Sync & clk
232C
Y/C 3Y/C 3Bat.Bat.
SIF _A
L/R Main(CXA2069)
L/R ATSC
L/R DTV1
L/R DTV2
8 Bit
MUX
CVBS & Audio
LINE_OUT
. M7V
. A6VCC
. A12VCC
. 12VCC
. 2V5VCC
. 3V3VCC
L/R SC2L/R SC2
L/R CVBS1L/R CVBS1
L/R CVBS2L/R CVBS2
L/R CVBS3L/R CVBS3
L/R DVIL/R DVI
Audio L-Main
Audio R-Main
(Video
Decode,
C/C & 3D)
8 Bit
MUX
24
5
24
16MICOM_CVBS
RGB/FB
For CC
HDMIHDMI
YPbPr 1YPbPr 1
YPbPr 2YPbPr 2
MST3388
-110
76577657BA7657
~ 480P
SDA6000M
I/R
Key
LED
IIC
ATSC_CVBSATSC_CVBS
NTSC_CVBSNTSC_CVBS
ATSCATSCHDMI I2S & S/PDIF
HDMI I2S
LPF
RGB/FB
RGB
ATSC I2S
L/R Aux.
(Headphone)
To MSP
MICOM_CVBS
4
4
(~SOG)
(~DE)
ATSC Input(Sub)
MAX232MAX232AmpAmp Speaker
From MSP4440Output
Tele-text
C/CRx/Tx
23
CVBS 1CVBS 1
J-
L003
J-
L003
MAX232MAX232
MDIN
150
MDIN
150
A-INE[23:0]
D-INO[23:0]
D-H/V Sync & clk
CVBS 2CVBS 2
CVBS 3CVBS 3
Y/C 1Y/C 1
Y/C 2Y/C 2
uPD
64012
CVBS1
Y1/C1
CVBS2/Y2
C2
V-IN [15:0]
V-H/V Sync & clk
RealTimer
(M41T81)
RealTimer
(M41T81)
IIC5Vst
CXA2069
(A_S/W)
RS232CRS232CRx/Tx
LVDS Tx
DS90C387
30
I/OExpender
Audio (2069,
MSP44X0,
4052)
Audio (2069,
MSP44X0,
4052)
L/R SC2(CXA2069)
Panel
L/R Main
(Power Amp)
Audio
MSP44X0
ASI510(Scaler)
MDIN
150
(I/P)
VPC3230
(Decoder)
A-H/V Sync & clk
232C
Y/C 3Y/C 3Bat.Bat.
SIF _A
L/R Main(CXA2069)
L/R ATSC
L/R DTV1
L/R DTV2
8 Bit
MUX
CVBS & Audio
LINE_OUT
. M7V
. A6VCC
. A12VCC
. 12VCC
. 2V5VCC
. 3V3VCC
L/R SC2L/R SC2
L/R CVBS1L/R CVBS1
L/R CVBS2L/R CVBS2
L/R CVBS3L/R CVBS3
L/R DVIL/R DVI
Audio L-Main
Audio R-Main
(Video
Decode,
C/C & 3D)
8 Bit
MUX
24
5
24
16MICOM_CVBS
RGB/FB
For CC
HDMIHDMI
YPbPr 1YPbPr 1
YPbPr 2YPbPr 2
MST3388
-110
76577657BA7657
~ 480P
SDA6000M
I/R
Key
LED
IIC
ATSC_CVBSATSC_CVBS
NTSC_CVBSNTSC_CVBS
ATSCATSCHDMI I2S & S/PDIF
HDMI I2S
LPF
RGB/FB
RGB
ATSC I2S
L/R Aux.
(Headphone)
To MSP
MICOM_CVBS
4
4
(~SOG)
(~DE)
Component Input(Main)
MAX232MAX232AmpAmp
SpeakerFrom MSP4440Output
Tele-text
C/CRx/Tx
24
CVBS 1CVBS 1
J-
L003
J-
L003
MAX232MAX232
MDIN
150
MDIN
150
A-INE[23:0]
D-INO[23:0]
D-H/V Sync & clk
CVBS 2CVBS 2
CVBS 3CVBS 3
Y/C 1Y/C 1
Y/C 2Y/C 2
uPD
64012
CVBS1
Y1/C1
CVBS2/Y2
C2
V-IN [15:0]
V-H/V Sync & clk
RealTimer
(M41T81)
RealTimer
(M41T81)
IIC5Vst
CXA2069
(A_S/W)
RS232CRS232CRx/Tx
LVDS Tx
DS90C387
30
I/OExpender
Audio (2069,
MSP44X0,
4052)
Audio (2069,
MSP44X0,
4052)
L/R SC2(CXA2069)
Panel
L/R Main
(Power Amp)
Audio
MSP44X0
ASI510(Scaler)
MDIN
150
(I/P)
VPC3230
(Decoder)
A-H/V Sync & clk
232C
Y/C 3Y/C 3Bat.Bat.
SIF _A
L/R Main(CXA2069)
L/R ATSC
L/R DTV1
L/R DTV2
8 Bit
MUX
CVBS & Audio
LINE_OUT
. M7V
. A6VCC
. A12VCC
. 12VCC
. 2V5VCC
. 3V3VCC
L/R SC2L/R SC2
L/R CVBS1L/R CVBS1
L/R CVBS2L/R CVBS2
L/R CVBS3L/R CVBS3
L/R DVIL/R DVI
Audio L-Main
Audio R-Main
(Video
Decode,
C/C & 3D)
8 Bit
MUX
24
5
24
16MICOM_CVBS
RGB/FB
For CC
HDMIHDMI
YPbPr 1YPbPr 1
YPbPr 2YPbPr 2
MST3388
-110
76577657BA7657
~ 480P
SDA6000M
I/R
Key
LED
IIC
ATSC_CVBSATSC_CVBS
NTSC_CVBSNTSC_CVBS
ATSCATSCHDMI I2S & S/PDIF
HDMI I2S
LPF
RGB/FB
RGB
ATSC I2S
L/R Aux.
(Headphone)
To MSP
MICOM_CVBS
4
4
(~SOG)
(~DE)
Component Input(Sub)
MAX232MAX232AmpAmp Speaker
From MSP4440Output
Tele-text
C/CRx/Tx
25
CVBS 1CVBS 1
J-
L003
J-
L003
MAX232MAX232
MDIN
150
MDIN
150
A-INE[23:0]
D-INO[23:0]
D-H/V Sync & clk
CVBS 2CVBS 2
CVBS 3CVBS 3
Y/C 1Y/C 1
Y/C 2Y/C 2
uPD
64012
CVBS1
Y1/C1
CVBS2/Y2
C2
V-IN [15:0]
V-H/V Sync & clk
RealTimer
(M41T81)
RealTimer
(M41T81)
IIC5Vst
CXA2069
(A_S/W)
RS232CRS232CRx/Tx
LVDS Tx
DS90C387
30
I/OExpender
Audio (2069,
MSP44X0,
4052)
Audio (2069,
MSP44X0,
4052)
L/R SC2(CXA2069)
Panel
L/R Main
(Power Amp)
Audio
MSP44X0
ASI510(Scaler)
MDIN
150
(I/P)
VPC3230
(Decoder)
A-H/V Sync & clk
232C
Y/C 3Y/C 3Bat.Bat.
SIF _A
L/R Main(CXA2069)
L/R ATSC
L/R DTV1
L/R DTV2
8 Bit
MUX
CVBS & Audio
LINE_OUT
. M7V
. A6VCC
. A12VCC
. 12VCC
. 2V5VCC
. 3V3VCC
L/R SC2L/R SC2
L/R CVBS1L/R CVBS1
L/R CVBS2L/R CVBS2
L/R CVBS3L/R CVBS3
L/R DVIL/R DVI
Audio L-Main
Audio R-Main
(Video
Decode,
C/C & 3D)
8 Bit
MUX
24
5
24
16MICOM_CVBS
RGB/FB
For CC
HDMIHDMI
YPbPr 1YPbPr 1
YPbPr 2YPbPr 2
MST3388
-110
76577657BA7657
~ 480P
SDA6000M
I/R
Key
LED
IIC
ATSC_CVBSATSC_CVBS
NTSC_CVBSNTSC_CVBS
ATSCATSCHDMI I2S & S/PDIF
HDMI I2S
LPF
RGB/FB
RGB
ATSC I2S
L/R Aux.
(Headphone)
To MSP
MICOM_CVBS
4
4
(~SOG)
(~DE)
HDMI Input(Main)
MAX232MAX232AmpAmp
SpeakerFrom MSP4440Output
Tele-text
C/CRx/Tx
26
CVBS 1CVBS 1
J-
L003
J-
L003
MAX232MAX232
MDIN
150
MDIN
150
A-INE[23:0]
D-INO[23:0]
D-H/V Sync & clk
CVBS 2CVBS 2
CVBS 3CVBS 3
Y/C 1Y/C 1
Y/C 2Y/C 2
uPD
64012
CVBS1
Y1/C1
CVBS2/Y2
C2
V-IN [15:0]
V-H/V Sync & clk
RealTimer
(M41T81)
RealTimer
(M41T81)
IIC5Vst
CXA2069
(A_S/W)
RS232CRS232CRx/Tx
LVDS Tx
DS90C387
30
I/OExpender
Audio (2069,
MSP44X0,
4052)
Audio (2069,
MSP44X0,
4052)
L/R SC2(CXA2069)
Panel
L/R Main
(Power Amp)
Audio
MSP44X0
ASI510(Scaler)
MDIN
150
(I/P)
VPC3230
(Decoder)
A-H/V Sync & clk
232C
Y/C 3Y/C 3Bat.Bat.
SIF _A
L/R Main(CXA2069)
L/R ATSC
L/R DTV1
L/R DTV2
8 Bit
MUX
CVBS & Audio
LINE_OUT
. M7V
. A6VCC
. A12VCC
. 12VCC
. 2V5VCC
. 3V3VCC
L/R SC2L/R SC2
L/R CVBS1L/R CVBS1
L/R CVBS2L/R CVBS2
L/R CVBS3L/R CVBS3
L/R DVIL/R DVI
Audio L-Main
Audio R-Main
(Video
Decode,
C/C & 3D)
8 Bit
MUX
24
5
24
16MICOM_CVBS
RGB/FB
For CC
HDMIHDMI
YPbPr 1YPbPr 1
YPbPr 2YPbPr 2
MST3388
-110
76577657BA7657
~ 480P
SDA6000M
I/R
Key
LED
IIC
ATSC_CVBSATSC_CVBS
NTSC_CVBSNTSC_CVBS
ATSCATSCHDMI I2S & S/PDIF
HDMI I2S
LPF
RGB/FB
RGB
ATSC I2S
L/R Aux.
(Headphone)
To MSP
MICOM_CVBS
4
4
(~SOG)
(~DE)
HDMI Input(Sub)
MAX232MAX232AmpAmp
SpeakerFrom MSP4440Output
Tele-text
C/CRx/Tx
27
CVBS 1CVBS 1
J-
L003
J-
L003
MAX232MAX232
MDIN
150
MDIN
150
A-INE[23:0]
D-INO[23:0]
D-H/V Sync & clk
CVBS 2CVBS 2
CVBS 3CVBS 3
Y/C 1Y/C 1
Y/C 2Y/C 2
uPD
64012
CVBS1
Y1/C1
CVBS2/Y2
C2
V-IN [15:0]
V-H/V Sync & clk
RealTimer
(M41T81)
RealTimer
(M41T81)
IIC5Vst
CXA2069
(A_S/W)
RS232CRS232CRx/Tx
LVDS Tx
DS90C387
30
I/OExpender
Audio (2069,
MSP44X0,
4052)
Audio (2069,
MSP44X0,
4052)
L/R SC2(CXA2069)
Panel
L/R Main
(Power Amp)
Audio
MSP44X0
ASI510(Scaler)
MDIN
150
(I/P)
VPC3230
(Decoder)
A-H/V Sync & clk
232C
Y/C 3Y/C 3Bat.Bat.
SIF _A
L/R Main(CXA2069)
L/R ATSC
L/R DTV1
L/R DTV2
8 Bit
MUX
CVBS & Audio
LINE_OUT
. M7V
. A6VCC
. A12VCC
. 12VCC
. 2V5VCC
. 3V3VCC
L/R SC2L/R SC2
L/R CVBS1L/R CVBS1
L/R CVBS2L/R CVBS2
L/R CVBS3L/R CVBS3
L/R DVIL/R DVI
Audio L-Main
Audio R-Main
(Video
Decode,
C/C & 3D)
8 Bit
MUX
24
5
24
16MICOM_CVBS
RGB/FBFor CC
HDMIHDMI
YPbPr 1YPbPr 1
YPbPr 2YPbPr 2
MST3388
-110
76577657BA7657
~ 480P
SDA6000M
I/R
Key
LED
IIC
ATSC_CVBSATSC_CVBS
NTSC_CVBSNTSC_CVBS
ATSCATSCHDMI I2S & S/PDIF
HDMI I2S
LPF
RGB/FB
RGB
ATSC I2S
L/R Aux.
(Headphone)
To MSP
MICOM_CVBS
4
4
(~SOG)
(~DE)
Caption Input
MAX232MAX232AmpAmp Speaker
From MSP4440Output
Tele-text
C/CRx/Tx
28
Tuner / Digital / Input & SMPS Power Modules
17
20
21
10
10
10
10
10
10
12
12
11
19
8
14
14
15
16
16
10
10
10
10
10
16
10
10
1022
13
To "2.2 Exterior Section(1)
To "2.5 Rear Section
10
76
4
18
18
1
9
2
3
DescriptionPart No.
1 SMPS Assy 150-2040
2 DTT_ANALOG Assy 010-2640
3 DIGITAL Assy 010-2741
4 EMI FILTER PCB Assy 010-2742
5 • • • •
6 BRKT FAN-TOP 30172-01-001
7 FAN D05X12TL(50x50x10) 10511-07-001
8 Screw M3x14, SEMS,ZNW M1040301415
9 ASSY SHIELD MAIN 01434-0010
10 Screw M3x8, SEMS,ZNW M1040300815
11 BRKT N-FILTER 30173-01-000
12 Screw M3x8, SEM(E),ZNW M1033400615
13 BRKT REAR BOTTOM 30104-03-001
14 Screw T4x16,SS,T/T,BH,BLK M1305401617
15 BRKT MAIN AV-USA 30165-02-001
16 Screw T3x8,2S,T/T,BH,BLK M1305300817
17 Screw M3x8,3S,HH,FNI M1116300805
18 Screw M4x8,BH,BLK M1015400817
19 Wsher (Ø10) M1231111002
20 NUT UNF 3/8INCH832 M1211210002
21 ASSY SHIELD MAIN TOP M1305300817
22 ASSY BRKT MAIN SUPPORTER 01433-006029
ADJUSTMENT
ADJUSTMENT OF WHITE BALANCE
1. At shipment, the unit is adjusted to its best conditions. Normally, it is not necessary to readjust even if an assembly is replaced. If the adjustment is shifted or if it becomes necessary to readjust because of part replacement, etc., perform the adjustment as described below.
2. Any value changed in Service/Factory mode will be stored in memory as soon as it is changed. Before readjustment, take note of the original values for reference in case you need to restore the original settings.
3. Use a stable AC power supply.
Adjustment of White Balance
1. Equipment
• MIK7255 or Pattern Generator
• CA-210 Display Color Analyzer
• Remote Control.
2. Pattern adjustment
• ADC Calibration : Mik pattern #240
• Auto-Calibration Mode ; 480p/60Hz
; 720p/60Hz
; 480i/60Hz
• White Balance adjustment pattern: Mik pattern #446
• Color coordinate adjustment Mode: 720p/60Hz(Component)
Composite NTSC
3. STEP1: ADC-Calibration
1) At 480p, do Auto-Calibration of ADC-cut off & Gain(1 ) on Mosaic pattern(ex Mik pattern #240)
2) At 720p/60Hz, repeat 1)
3) At 480i, repeat 1).
4. STEP2: Adjustment of White - Balance
1) At Component input 1. 720p/60Hz, adjust white Balance Mid , High ,Low at pattern Full white 70%
(Ex; Mik pattern #446)
2) At Composite NTSC, repeat 1)
3) White Balance coordination (enter White Balance in Factory Mode)
How to enter; TV/AV -> 0 -> 9 -> 1-> 7 (press buttons one at a time to enter factory mode)
-> ASI510 W/B -> Done (it shows R,G,B adjustment toolbar)
(1) Mid : x=0.283 , y=0.298 +/- 0.02 (9300k)
(2) High : x=0.276 , y=0.283 +/- 0.02 (11000k)
(3) Low : x=0.313 , y=0.329 +/- 0.02 (6500k)
30
Power Down – Quick Troubleshooting Tip
Plasma Panel shuts down immediately After power on.
First unplug the two connectors on the SMPSAssembly (the connectors with all brown wires).Next unplug the TMDS connector from the Display to the panel assembly (silver shielded connector).
Try to power the set on in this condition. If the power stays on you will need to troubleshoot the Panel assembly PCB’s. If the power still shuts down you need to troubleshoot the Display, DTT, SMPS Audio or Thermal sensor assemblies.
31
Check the condition of the input power &cable connection.(JP730,JP701(DTT&Analog, JP709(Digital),JP230(AMP))Check the condition of on-board regulators.Check for short circuits between each power terminal and the ground.
1. No PowerPreliminary Checkpoints
#3(Power)at JP730
In digital Board
#1(M-7V)at JP730
In Digital B/D
No PowerWhen Powered ON
#5(POMUTE)at JP730
In digital Board
#74,75at U29
in digital B/D
The signal waveformof X3
in digital B/D
The data line waveformof U28
Change Digital B/D
Waveform 1
Waveform 2
Waveform 3
Waveform4,4 - 1
Waveform 5
Waveform6,6 - 1
Check SMPS
Check SMPS &MicomBlock(U29)
Check SMPS &Power Linein Digital B/D
Check the state of solderingin U401,U800,U29
Check the input powerpart in U29
Check the U28 andrelated Circuit
NG
NG
NG
NG
NG
NG
32
<Waveform 1 >
<Waveform 2 >
<Waveform 3 > <Waveform 6-1 >
<Waveform 4-1 >
<Waveform 5 >
33
Check the condition of Conection of the HDMI input ConnectorCheck the condition of Soldering state in HDMI input part.Check for short circuits between each power terminal and the ground.
2. No HDMI SignalPreliminary Checkpoints
#108,109,111,112,114,115,117,118DC level At U401In digital Board
#37,38at U401
in digital B/D
No HDMIsignal
EDID dataat U4
In digi tal Board
No soundin HDMI mode
Check the signalat JP4(HDMI Connector)
Change Digital B/D
Waveform 7
Waveform 8
Check the state of solderingat U401,U800,U29
Check input signal part ofU401
Check HDMI_PWR&5VSTB
Check the EDID data&Audio output at U401
Change JP4
NG
NG
NG
NG
NG
34
<Waveform 7 SCL >
<Waveform 7 SDA >
<Waveform 8 >
35
Test Patterm : SMPTE Color Bats
Check the condition of connectin of the input component video signal.Check the condition of soldering state in U401Check the short point in signal l ine.Check for short circuits between each power terminal and the ground.
3. No Component Video SignalPreliminary Checkpoints
The output signalAt U401
In digital Board
#22,25,27at U1
in digital B/D
No Componentsignal (SMPTE Color Bars)
Dose the signalappear at PR14~19
In digital B/D
Dose the signalappear at
PR29,31,34,35,38,39In digital B/D
Check the LVDS Cableand JP500
in Digital B/D
Change Digital B/D
Waveform 9
Waveform 10
Waveform 11
Waveform 12
Check the state of solderingat JP1 &input signal part
Check U401 andY400 and related circuit
Check U16 andY2 and related circuit
Check U20 andX2 and related circuit
Change the LVDS Cable&LVDS chip
NG
NG
NG
NG
NG
36
< Waveform 9 #22 >
< Waveform 9 #25 >
< Waveform 9 #27 > < Waveform 12 >
< Waveform 10 >
< Waveform 11 >
37
Check the condition of connectin of the input TV signal.Check the condition of soldering state in Tuner & input partCheck the short point in signal line.Check for short circuits between each power terminal and the ground.
4. No TV SignalPreliminary Checkpoints
#119At U711
In DTT&Analog Board
#63at U706
in DTT & Analog B/D
No TVsignal (SMPTE Color Bars)
Dose the signalappear at PR22,24
25,26 In DTT&AnalogB/D
Dose the signalappear at
PR29,31,34,35,38,39In digital B/D
Check the LVDS Cableand JP500
in Digital B/D
Change Digital B/D
Waveform 13
Waveform 14
Waveform 11
Waveform 12
Check A_CVBS1 inputpart
Check U706 &input part of U711
Check U16 andY2 and related circuit
Check U20 andX2 and related circuit
Change the LVDS Cable&LVDS chip
NG
NG
NG
NG
NG
38
< Waveform 13 >
< Waveform 14 >
< Waveform 11 >
< Waveform 12 >
39
Check the condition of connectin of the input CVBS signal.Check the condition of soldering state in CVBS & input partCheck the short point in signal line.Check for short circuits between each power terminal and the ground.
5. No Video Signal (CVBS)Preliminary Checkpoints
#119At U711
In DTT&Analog Board
#8(1),15(2),22(3)at U706
in DTT & Analog B/D
No CVBSsignal (SMPTE Color Bars)
Dose the signalappear at PR22,24
25,26 In DTT&AnalogB/D
Dose the signalappear at
PR29,31,34,35,38,39In digital B/D
Check the LVDS Cableand JP500
in Digital B/D
Change Digital B/D
Waveform 15
Waveform 14
Waveform 11
Waveform 12
Check CVBS inputpart
Check U706 &input part of U711
Check U16 andY2 and related circuit
Check U20 andX2 and related circuit
Change the LVDS Cable&LVDS chip
NG
(1):VIDEO01(2):VIDEO01(3):VIDEO01
NG
NG
NG
NG
40
< Waveform 15 >
< Waveform 14 >
< Waveform 11 >
< Waveform 12 >
41
Check the condition of connectin of the input S-VHS signal.Check the condition of soldering state in S-VHS & input partCheck the short poi nt in signal line.Check for short circuits between each power terminal and the ground.
6. No Video Signal (S-VHS)Preliminary Checkpoints
#121,128At U711
In DTT&Analog Board
#10,12(1),17,19(2),24,26(3)at U706
in DTT & Analog B/D
No S-VHSsignal (SMPTE Color Bars)
Dose the signalappear at PR22,24
25,26 In DTT&AnalogB/D
Dose the signalappear at
PR29,31,34,35,38,39In digital B/D
Check the LVDS Cableand JP500
in Digital B/D
Change Digital B/D
Waveform 16,16-1
Waveform 17,17-1
Waveform 11
Waveform 12
Check CVBS inputpart
Check U706 &input part of U711
Check U16 andY2 and related circuit
Check U20 andX2 and related circuit
Change the LVDS Cable&LVDS chip
NG
(1):S-VIDEO01(2):S-VIDEO01(3):S-VIDEO01
NG
NG
NG
NG
42
< Waveform 16 C >
< Waveform 16 Y >
< Waveform 17 C >
< Waveform 12 >
< Waveform 12 >
< Waveform 17 Y >
43
Check the condition of connectin of the input DVI Audio R/L.Check the condition of soldering state in DVI Audio R/L &input partCheck the short point in signal line.Check for short circuits between each power terminal and the ground.
7. No Sound DVI Audio (Sine wave input)Preliminary Checkpoints
#56,57At U751
In DTT&Analog Board
#29,31at U706
in DTT & Analog B/D
No Sound inDVI Audio R/L
#11,15At U200
In Audio Amp Board
#28,31,27,24At U200
Change Speaker
Waveform 20
Waveform 19
Waveform 18
Waveform 21
Check DVI Audio inputpart
Check U706 &input part of U751
Check U751 andY800 and related circuit
Check U20 andX2 and related circuit
NG
NG
NG
NG
44
< Waveform 18 >
< Waveform 19 >
< Waveform 20 >
< Waveform 21 >
45
Check the condition of connectin of the input CVBS Audio R/L.Check the condition of soldering state in CVBS Audio R/L & input partCheck the short point in signal line.Check for short circuits between each power terminal and the ground.
8. No Sound in CVBS (Sine wave input)Preliminary Checkpoints
#56,57At U751
In DTT&Analog Board
#9,11(1),16,18(2),23,25(3)at U706
in DTT & Analog B/D
No Sound inCVBS Audio R/L
#11,15At U200
In Audio Amp Board
#28,31,27,24At U200
Change Speaker
Waveform 20
Waveform 19
Waveform 18
Waveform 21
Check CVBS Audio inputpart
Check U706 &input part of U751
Check U751 andY800 and related circuit
Check U200 andX2 and related circuit
NG
NG
NG
NG
(1):VIDEO01 Audio(2):VIDEO01 Audio(3):VIDEO01 Audio
46
< Waveform 18 >
< Waveform 19 >
< Waveform 20 >
< Waveform 21 >
47
Check the condition of connectin of the input Component Audio R/L.Check the condition of soldering state in Component Audio R/L &input partCheck the short point in signal line.Check for short circuits between each power terminal and the ground.
9. No Audio in Component Input (Sine wave input)Preliminary Checkpoints
#50,51(1),47,48(2)at U751
in DTT & Analog B/D
No Sound inComponent Audio R/L
#11,15At U200
In Audio Amp Board
#28,31,27,24At U200
Change Speaker
Waveform 20
Waveform 19
Waveform 21
Check Component Audio input part
Check U751 andY800 and related circuit
Check U20 andX2 and related circuit
NG
NG
NG
(1):Component1 Audio(2):Component2 Audio
48
< Waveform 19 >
< Waveform 20 >
< Waveform 21 >
49
Check the condition of connectin of the input TV SIF.Check the condition of soldering state in TV SIF input part.Check the short point in signal line.Check for short circuits between each power terminal and the ground.
10. No TV Sound (Sine wave input)Preliminary Checkpoints
#67at U751
in DTT & Analog B/D
No Sound inTV input
#11,15At U200
In Audio Amp Board
#28,31,27,24At U200
Change Speaker
Waveform 20
Waveform 22
Waveform 21
Check TV SIF input part
Check U751 andY800 and related circuit
Check U20 andX2 and related circuit
NG
NG
NG
50
< Waveform 22 >
< Waveform 20 >
< Waveform 21 >
51
Check the back Solding state in 96 pin connector(JP12(Digital),JP701(DTT&Analog))Check the CC_RD,GD,BD,FB,VD,HD signal in I C.Check the I2C between Micom and uPD64012 or EEPROM.Check the Flash Memory or SDRAM.
11. No CaptionPreliminary Checkpoints
Check the Micom_CVBS(Pin 121)
of IC SDA6001(U29)
CC in Remocon isO.K. but the CC Does
Not display
Check CC_R,G,B,FB,H,V-syncof IC SDA6001(U29)
Change the uPD64012
Waveform 24R,G,B,FB,H-sync
V-sync
Waveform 23
Check Micom CVBSConnection part
Check the crystal(X2)and related parts on U29
NG
OK
OK
OK
NG
52
< Waveform 24 R >
< Waveform 24 G >
< Waveform 24 B >
< Waveform 24 FB >
< Waveform 24 H-sync >
< Waveform 24 V-sync >
53
Check the Solder state and pin of Connector JP10Check the Solder state in LED Board.Check the I2C between Micom and EEPROM.Check the Flash Memory or SDRAM.
12. RemoconRemocon switch push but the key does not function
Preliminary Checkpoints
Check the IR Micom(Pin 76)of IC SDA6001(U29)
Remocon is O.K. but the Function does not
operate.
When you powerswitch off,the set off
Exchange the Digital Board
Waveform 25
Check Remocon outputand Power in LED Board
Exchange the IC(UP1)
NG
OK
OK
Check the Micom part(IIC Comunication, other
Control line)Exchange the IC(U29)
NG
OK
OK
NG
54
< Waveform 25 >
55
Check the Solder state and pin of Connector JP10Check the Solder state in Key Board.Check the I2C between Micom and EEPROM.Check the Flash Memory or SDRAM.
13. KeyKey switch is OK but the key does not function
Preliminary Checkpoints
Check the key1,key2(Pin 124,125)
of IC SDA6001(U29)
Control key is O.K. but the Function does not
operate.
Check IR processor(UP1)
Exchange the Digital Board
Waveform 26
Check Control Key Boardand Power in LED Board
Exchange the IC(UP1)
NG
OK
OK
Check the Micom part(IIC Comunication, other
Control line)Exchange the IC(U29)
NG
OK
OK
NG
56
< Waveform 26 >
< Waveform 26-1 >
57
Check the condition of the input power &cable connection. (JP709)Check the condition of on-board regulators.Check for short circuits between each power terminal and the ground.
DTT Basic InspectionNot Working When Powered On
Preliminary Checkpoints
Check the voltage outputof JP709 & JP701.
Not WorkingWhen Powered On
Check the output voltageof on-board regulators
Check the power line pathfrom on-board regulators
to each components.
Note) Please refer to the power diagram of PAU-42THD for detail power connectivity information.Note) Each input power of DTT comes via the digital board of SMPS directly. So, please check the digital board prior to SMPS when power input is not working properly.
Check the Digital Board orSMPS
*JP 7091. 3.3V2. 3.3V3. 3.3V4. GND5. GND6. GND7. 2.5V8. 2.5V9. 2.5V10. GND11. GND12. GND
*JP 7019. A6VCC10. A6VCC
Check the soldering status of on-board regulators.
Perform short circuit test oneach power lines.
NG
OK
OK
Check the voltage outputof JP709 & JP701 after
connecting them.
Perform short circuit test oneach power lines.
NG
OK
Check the input voltageof on-board regulators
Check the power line pathfrom connector
to on-board regulators.
NG
OK
OK
NG
58
Check the battery condition of the Remote Control Unit.Check against the a set that works normally to see if the RCU (Remote Control Unit) is working.Check whether the connector between Digital Board and DTT&Analog Board is connected. (JP701)Note that DTT board does not receive the key directly from RCU. Instead, MCU of digital boardgets the keys and passes them to DTT through the UART0. (Pin 34 &35 of JP701)
Basic InspectionMulfunction or Not Working of Remote Control Unit
Preliminary Checkpoints
< Waveform 1 >
Check the battery of the RCU.Check the RCU.
Mulfunction or NotWorking of Remote
Control Unit
Check the UART0_RX signal(Pin 33 of JP701)
Check signal line path to themain CPU of DTT board
(U2)
Waveform 1 (When 'OK' key is pressed)
Replace the battery/RCU
Check the digital board /Check the IR & LED board
NG
OK
Check the connector(JP701) Secure the connector
NG
OK
OK
NG
59
Check the System Clock (27MHz)and the RESET terminal of CPU.Check the UART communication terminals between CPU and digital board (UART0).Check the I2C between CPU and LGDT3303 or EEPROM.Check the Flash Memory or DDR-SDRAM.
Basic InspectionPower Supply is O.K. but the DTT Does Not Wake Up
Preliminary Checkpoints
Useful Tips
1. An Unstable 27 MHz clock may be due to defect of X-TAL or clock generator (U261). Replace the X-Tal or U261.2. DDR-SDRAM have difference clock inputs which are positive and others are negative signal (Double Data Rate).3. Vref and VTT are have Vcc/2 and check the power source whether defected.4. When replacing parts, be cearful of static charges from the tip of the solder iron that can easily damage the parts. Also, check for assembly condition, soldering condition, or for incorrect or reverse insertion of parts.5. If the problems are caused by CPU, change CPU board and download Serial Number.
Check the SystemClock 27MHz (Pin 15) of IC
MK2475-33G (U261)
Power Supply is O.K.but the STB Does Not
Wake up
Check RESET, CS and OEsignals of Flash Memory
Check for other defectivemodes
Waveform 5Ch1:Reset, Ch2:CS/ Ch3:OE/
Check X-Tal(Y261) andrelated parts
Check Flash Memory(U40) or related parts
NG
OK
Check DDR-SDRAM Clock(Pin 45 and 46) of DDR-SDRAM
(U5, U6, U7 and U8)
Check the Vref and VTT voltageand clock of
DDR-SDRAM or related parts
NG
OK
Check system reset of Pin1 onU281
Check the soldering state ofU281 or Replace U281
NG
OK
OK
NG
Waveform 2
Waveform 3Ch:CLK, Ch2:CLK~
Waveform 4Ch:3.3V, Ch2:Reset
60
< Waveform 2 > < Waveform 5 >
< Waveform 3 >
< Waveform 4 >
61
The system clock 27MHz must be stable during the System Reset or the Power On Reset.However, if X-TAL is defective, the clock may not become stable until RESET is released.To check reset timing, turn the main power off and back on, and check if the following waveform is maintained.
Basic InspectionDoes Not Boot after Power-On or System Reset
Preliminary Checkpoints
Useful Tips
1. The CPU have two 12C for system controller. One is communicate with system 12C(TDA10046) and the other is communicate with serial EFPROM for storing data.2. When the system will not operate even though the basic inspection results were normal, check Flash Memory which contains channel data and program contents.3. Additionally check for Local DATA and Local ADDRESS buses between CPU and Flash Memory.4. When replacing parts, be careful of static changes from the tip of the solder iron that can easily damage the parts. Also, check for assembly condition, soldering condition, or for incorrect or reverse insertion of parts.5. If the problems are caused by CPU, change CPU board and download Serial Number.
Check the Reset andclock timing of CPU
Does Not Boot after System/Power-On Reset
Check the 12C Line(Pin 6, 5 of U31)
Check for other defectivemodes
27 MHz Clock problemReset timing promlem
OK
Check the communicationbetween DTT and
digital board
Check the soldering statusof JP282.
Check the digital board
Check the soldering statusof X-TAL(Y261) and U261
Check the reset signal ofFlash and Pin1 of U281
NG
OK
Check Flash Memory Check the waveform CSand OE of Flash Memory
NGCheck the soldering statusof U40(Flash Memory)
and U62
NG
Check the soldering state ofEFPROM
NG
OK
OK
Waveform 5
Waveform 6Ch1:SLC, Ch2:SDA
Waveform 2Waveform 4
62
< Waveform 2 > < Waveform 6 >
< Waveform 4 >
< Waveform 5 >
63
CPU / SYSTEM MEMORY INSPECTION
If the system does not respond even though no problem was found after basic inspection,you need to check the flash memory that contains program codes for the proper system operation,Flash Memory Control signals that look similar to below waveforms will be repeated.The main cause of the problems related to System Memory (i.e.Flash and DDRSDRAM)is the soldering of parts.Therefore, first check the soldering condition and the power supply of IC.
CPU /System Memory InspectionError Occurs During S/W Installation or Update through BOOTROM Board.System Stops During Initial Booting or Operation.Preliminary Checkpoints
Useful Tips
1. Check CE, OE and WE of Flash Memory when system does not operate or cannnot update for new software.2. When the system will not operate even though the basic inspection results were normal, check Flash Memory which contains channel data and program contents.3. Additionally check for Local ADDRESS buses between CPU and Flash Memory.4. Check the Memory interface of DDRSDRAM if the Flash Memory is not defected.5. When replacing parts, be careful of static charges from the tip of the solder iron that can easily damage the parts. Also, check for assembly condition, soldering condition, or for incorrect or reverse insertion of parts.6. If the problems are caused by CPU, change CPU board and download Serial Number.
Check Flash Accesssignal CE(Pin 14), OE(Pin 54)
Error Occurs During S/W Installation or Update
through BOOTROM Board.
Check the Data and Addresses of DDR-SDRAM
Check CPUand Flash Memory
(Incorrect insertion, poorsoldering, etc.)
Check for other defectivemodes
Re-check the basic inspectionitems
NG
NG OK
OK OK
Waveform 5
Waveform 7Ch:DDR0A0CH:DDR0D0
64
< Waveform 5 >
< Waveform 7 >
65
MPEG INSPECTION
If the system does not respond even though no problems were found during the basic inspectionand the CPU/Flash inspection, you will need to check the DDR-SDRAM interface.Check control lines between DDR-SDRAM and CPU also data/address lines.The main cause of the problems related to System Memory (i.e.Flash and DDR-SDRAM)is the soldering of parts.Therefore, in the event of a problem, first check the condition of the soldering and the power supply of IC.
MPEG InspectionNo problems Found during Basic and CPU/System Memory Inspections, but MPEG Does Not Play.- Check DDR SDRAM Interface/Transport Stream(TS). Preliminary Checkpoints
< Waveform 7 >
Useful Tips1. Make sure that basic function of the system is normal by checking that the VFD toggles each time you press the Front power key.2. Check the interface between CPU and DDR-SDRAM U5, U6, U7 and U8. The interface is composed of clock(133MHz), address, data and control signals.3. If all connections are complete, replace the DDR-SDRAM.4. If the problems are caused by CPU, change CPU board and download Serial Number.
Check the output of DDRSDRAM control interface
No problems Found onduring Basic/Memory
Inspections but MPEG PlayDoes Not Work
Check the adress and data linesof between CPU and DDR-SDRAM
Check the soldingstatus of DDR-SDRAM(U5, U6, U7 and U8)
Check for other defectivemodes
Recheck the basic inspevtionitems
NG
NG OK
OK OK
Waveform 8Ch1:RAS/, Ch2:CAS/, Ch3:WE/
Waveform 7
< Waveform 8 > 66
A/ V INSPECTION
If no video is output while the UI(User Interface)and key controls are normal,first check the video output signal of CPU.If no video signal found,check the TS parallel data between CPU and U531.If no output of TS data,check the U531 and relevant components.
A/V InspectionNo Video Output - CVBS/YPbPr
Preliminary Checkpoints
< Waveform 9-1 > < Waveform 9-2 >
Check the Video outputof CPU
U2(PIN:A9):CVBSU2(PIN:B9, C9):
S-VHSJP141(PIN1, 3, 5,):YPbPr
No video Output
Check the TS line betweenCPU and U531
Check for other defectivemodes
Waveform 9-1 (CVBS)Waveform 9-2 (YPbPr)
Check the path betweenCPU and JP705, JP706 (Incorrect
insertion, poor soldering, short circuits, damage, etc.)
Check the TS signal path from tuner to U531.
NG
OK
OK
OK
NG
Useful Tips
1. If no output of TS data but tuner is good, check the U531 and relevant components.
67
If no audio is output through JP800 while the system is normal, first check the CPU AUDIO output and clock. [I2S interface ].If no problems were found, check the U671 for Audio DAC.
A/V InspectionNo Audio Output
Preliminary Checkpoints
< Waveform 10 > < Waveform 11 >
Check the CPU12S output
No Audio Output
Check the Audio clockPin 9 of U261
Check for other defective modes
Waveform 10Ch1:SCLK,
Ch2:LRCLK,Ch3:ADATA0
Check the path betweenCPU and Clock
(Incorrect insertion, poor soldering, short circuits, damage, etc.)
Check the path betweenAudio DAC and CPU
(Incorrect insertion, poor solding,short circuits, damage, etc)
Check the X-TAL and U261(Incorrect insertion, poor soldering,
short circuits, damage, etc)
NG
OK
OK
OK
NG
Check the Audio DAC forU761
OK
NG
Useful Tips
1. The Audio problem largely from the defect of CPU, Audio DAC or incomplete soldering of the parts located along the audio output path.2. Audio DAC pins represent serial data, LR clock, Bit clock and system clock, respectively.
Waveform 11
68
If the SPDIF output is not working while the system is normal (Including MPEG play and A/V output), check for any problems with the SPDIF output of CPU.
A/V InspectionNo digital audio output
Preliminary Checkpoints
< Waveform 13 >
No IEC958 Digital Output
Check the IEC958 outputsignal J5 of U2
Check for other defective modes
Check the path betweenCPU and IEC958 line
(Incorrect insertion, poor soldering, short circuits, damage, etc.)
NG
OK
Waveform 13
69
CHANNEL INSPECTION
If channel locking fails even though there is no problems with the system, check the Interface between Tuner, LGDT3303 and CPU.
Channel InspectionNo Channel Locking with No Problems with Power/CPU
Preliminary Checkpoints
Check the LGDT3303input voltage
- LDGT3303 Input Power* +3.3V Pin21, 35, 61, 93 * +1.8V PIN16, 19, 32, 42, 47, 55, 63, 68, 74, 81, 85, 89, 100
Channel locking failure
Check other relatedpart
After the basic inspection, check the path between U501 and LGDT3303(Incorrect insertion, poor soldering,
short circuits, damage, etc)
NG
OK
Check the LGDT3303 input(Reset) = high
- LDGT3303 PIN26* low : reset on* high : reset release
Check the path betweenCPU and LGDT3303 (Incorrectinsertion, poor soldering, short
circuits, damage, etc.)
NG
OK
Check the LGDT3303input clock
- LGDT3303 Pin 79, 80* 25MHz clock Check the path between
LGDT3303 and X-Tal (Incorrectinsertion, poor soldering, short
circuits, damage, etc.)
NG
OK
Check the 12C control
- 12C CLOCK [PIN48]- 12C DATA[PIN49] Check the path between
devices the LGDT3303 and EEPROMAlso, check Incorrect insertion, poor soldering, short circuits, damage, etc.)
NG
Useful Tips
1. Check the power byU532 are properly provided to the U531.2. Check the 12C interface between tuner and 10046. If no problem, inspect along the tuner output path to TDA10046. Whether the components of R, L, C's soldering status.3. If no problem, replace the Tuner.4. If the problems are founded by CPU, replace the CPU board and also download SN.
Waveform 14
70
< Waveform 14 >
71
CHANNEL INSPECTION 2
If channel Locking fails even though there is no problems with the system, check the TUNER 12C BUS and IF signals.If the Tuner 12C and IF signals are good but cannot search, check TS data goes to CPU
Channel InspectionNo Channel Locking with No Problems with Power/CPU
Preliminary Checkpoints
Check the TUNER power* +5VDT of PIN 3, 7
Channel locking failure
Check for other defectivemodes
After the basic inspection, check the path between SMPS and TUNER
(Incorrect insertion, poor soldring, short circuits, damage, etc)
NG
OK
Check the 12C DATA andCLOCK of TUNER
* PIN48 [SCL] of LGDT3303* PIN49 [SDA] of LGDT3303 Check the path between
CPU and LGDT3303 (Incorrectinsertion, poor soldering, short
circuits, damage, etc.)
NG
OK
Check the TUNER output(VIN+, VIN-)
* VIN+* VIN- Check the path between
LGDT3303 and TUNER (Incorrectinsertion, poor soldering, short
circuits, damage, etc.)
NG
OK
Check the TUNERAGC
* PIN22(TUNER_AGC) of LGDT3303 Check the path between
LGDT3303 and Tuner(Incorrect insertion, poor soldering,
short circuits, damage, etc.)
NG
OK
Check the output of Pin46is high, also check clockand valid of LGDT3303
* PIN46(VSB_CLK) of LGDT3303 high : lock low : unlock
Replace the related parts(demodulator)
NG
OK
Check the TS DATA outputand goes to CPU
* VSB_D [7 : 0] of LGDT3303 Replace the related parts
(demodulator)
NG
Waveform 15
Waveform 16
Waveform 17
72
< Waveform 15 >
< Waveform 16 >
73
DISASSEMBLY
2 Remove the two screws (M4 x 12).
1 Remove the 15 screws (T4 x 16).
3 Remove the 17 screws (M4 x 8).
5 Remove the four screws (M4 x 12).
4 Remove the nine screws (M3 x 8).
6 Remove the stand.
Rear Case(42a3HD), Stand and Shield Assys
SHIELD ASSY and STAND ASSY
1
1
3
3
1
1
1
1 1 1 1 1 1
13
3 1
12 21
3
3
3
33
3
3
3
3 3 3 3 3
1
4
4
4
4
5
5
6
4 4
4
44
55
STAND ASSY SHILED ASSY
74
8 Remove the eight screws (M4 x 8).
7 Remove the six screws (M3 x 8).
9 Remove the connector (right → center → left).
10 Remove the ANALOG DIGITAL EMI FILTER.
11 Remove the four screws (M3 x 8) to release the ASSY BRKT MAIN.
Remove the Assy Brkt V-supporter L and R.
12 Remove the four screws (M5 x 12).
13 Remove the eight screws (T4 x 16).
14 Remove the five screws (M3 x 8) to release the SMPS.
ANALOG, DIGITAL and EMI FILTER2
77
79
7
77
8
1314
14
14
14
13
12
14
12
8 8 8
9 9
13
11
13
11
SMPS
ASSY BRKT MAIN
75
16 Remove the screw (M4 x 10).
15 Remove the three screws (T4 x 16).
Remove the SHIELD SIDE
PDP PANEL
17 Remove the three screws (M4 x 8).
SHIELD SIDE3
15
17 16
1513
17
17
15
13
76
18 Remove the two screws to release the LED PCB.
20 Remove the eight screws (T4 x 14) torelease the SPEAKER L/R.
4
SPEAKER R SPEAKER L18
20
2020
20
77
HOW TO DIAGNOSE THE PDP MODULE
HOW TO DIAGNOSE THE PDP MODULE(PDP-NP42H5MF01PA/PB)
1. List of tools required for repair
2. Points of failure diagnosis for a Board Assy (PKG)
3. Replacement method of a Board Assy (PKG) and notes on replacement
4. Adjustments after replacement of parts in the module
5. Operation check
1. List of tools required for repaira) Phillips screwdriver:For detaching/reattaching PKGsb) Antistatic wrist strap: To be used when electronic components, such as PKGs, are to be handledc) Signal generator (PC, etc.) :For voltage adjustment and display checkd)DVM :For voltage adjustment.f ) D V M Tester:For cable check, voltage adjustment, etc.g) Cushion:To be used when the PKGs are to be replaced
Note: Be sure to wear a wrist strap when you detach/reattach PKGs (Board Assy) to protect electronic components from being damaged by electrostatic charges.
78
Notes: • The version of a board assy (PKG) is indicated on the label on the board assy.
• When replacing the scanning relay board assys (PKG-C), make sure that the PKG-U and PKG-D of the same version are used, to ensure correct scanning timing.
Version label of the board assy (PKG)
Digital PKG Other PKG
12
11
7
8
3 4
10
2
• Part name
• Serial number
• Version number
• Part name
• Serial number
• HW version • SW version
PART NAMETYPE NAME VERSION
1 PKG42H5G1 03B 9S899891 1 High Voltage Board2 PKG42H5C1 17C-08 9S890002 1 Digital Board3 PKG42H5J7 02A 9S899895 1 Data Relay Board(Left Down)4 PKG42H5J8 02A 9S899896 1 Data Relay Board(Right Down)5 PKG42H5J5 02A 9S899893 1 Data Relay Board(Left Up)6 PKG42H5J6 02A 9S899894 1 Data Relay Board(Right Up)7 PKG42H5E1 02A 9S899897 1 Scan Relay Board(Up)
PKG42H5E1 02C 9S899862 18 PKG42H5E2 02A 9S899898 1 Scan Relay Board(Down)
PKG42H5E2 02C 9S899863 110 PKG42H5E3/50X6E3 02A 9S899899 1 Scan Relay Board(Center)11 PKG42H5J4 02A 9S899919 1 Common Connection Board12 PKG42H5J3 02A 9S899918 1 Common Relay Board
PART NO
PARTS LIST
NOTESYMBOL QTY
NP42H5MF01PA/PB
Data Relay (Left up) Data Relay (Right up)
High Voltage Board
Common Relay Board
Com
mon
Con
nect
ion
Data Relay Board (left) Data Relay Board (right)
Scan Relay Board (Down)
Scan Relay Board (Up)
Digital Board
165
79
Digital BoardPKG42H5C1
01A
02A
01C
02C
02C
Scan Relay Board(Down)PKG42H5E2
14C-07
17C-0814C-08
15C-08
16C-08
01C-07/02C-0711C-07/12C-07
13C-07
Data Relay Board(Left Up)PKG42H5J5
Data Relay Board(Right Up)PKG42H5J6
Common Relay BoardPKG42H5J3
Scan Relay Board(Center)PKG42H5E3/50X6E3
Scan Relay Board(Down) should be combined with the sameversion of Scan Relay Board(Up).
Scan Relay Board(up) should be combined with the same versionof Scan Relay Board(Down) .
01A/02A
01A/02A
01A/02A01A
02A
01A
Scan Relay Board(Up)PKG42H5E1
01A
02A
01A
02A
12C-08
03B
NP42H5MF01PA/PB
Name of (board) Version Replaceable Version
03B
02A
High Voltage BoardPKG42H5G1
02A
Data Relay Board(Right Down)PKG42H5J8
01A
01A
02A
01A
17C-08
01A/02A
01A/02A
01C/02C
01A/02A
01C/02C
02A
01A/02A
01A
Upper compatible if no terms.
Common Connection BoardPKG42H5J4
Data Relay Board(Left Down)PKG42H5J7
NoteConditions
01A/02A02A
01A01A/02A
Compatible table of the board version
80
T
ROUBLE SHOOTINGPage 119-126
Model, Serial No. and Panel ID.
Procedure FOR BASIC Service TROUBLE SHOOTING
Panel Crack
OK
NG
Connectors/Cables
OK
Reproductio
V Line
Page 87 Page118Page 92-95 Page123-126
NG
Page 82 (2)
Page 83 - 85
Page 82 (1)
Phenomenon
Exchange PDP
Reconnect or exchange
Reuse
NG
From Service Manual of the
product
Follow the procedure below for failure diagnosis. Keep wearing Antistatic wrist Banduntil all work and testing has finished.
Power-off
Page 91 Page119-122
V Line
(Page 87-92)
Picture
H Line
81
222407145612Above ExampleModel:NP42H5MF01AA Serial No.: 408200943
NECMODEL NP42H5MF01
408200943 MADE IN JAPANCODE AA-C3
NEC Plasma Display Corporation
Refer to the photographs below to find Model, Serial No. and Panel ID.
(1) Model, Serial No., and Panel ID
Model/Serial No.
Panel ID
Panel may be cracked due to handling during or after transportation.
(2) Panel Crack
Refer to the photographs below to check panel for crack.
82
(Caution) Take care for the cable handling. Careless handling inproduction line may cause this Failure.
(3-1) Check connectors and cables for breakage or disconnection referring to the photos below.
(3) Connectors/Cables
Scan V
oltage Flexible C
able
Data Relay Flexible Cable (UP)
Data Relay Flexible Cable (Down)
Com
mon V
oltage Flexible C
able
(3-2) Check connectors and cables whether they are connected and locked right.See Page 114-115 for the right procedure of connection.
Data Relay Board (LU) Data Relay Board (RU)
Com
mon
Con
nect
ion
Boa
rd
Data Relay Board (LD) Data Relay Board (RD)
Sca
n R
elay
Boa
rd (
D)
Sca
n R
elay
Boa
rd(U
)
Digital Board
Common Relay Board
High Voltage Board
83
Right Connection (Part 1)
High voltage Board( Photo)- Digital Board
Scan Relay Board (Photo)- Panel
Common Relay Board (Photo)- Panel
Locked
Unlocked
Digital Board (Photo)-High Voltage Board
Right Connection (Part 2)
High Voltage Board (Photo)-Data Relay Board
High Voltage Board (Photo)-Scan Relay Board(Photo)
Locked
Unlocked
84
Data Relay Board (Photo)
Right Connection (Part 3)
-Panel
Common Connection Board (Photo)-Common Relay Board
High Voltage Board (Photo)-Common Relay Board (Photo)
Locked
Unlocked
85
Data Relay Board (Photo)
Right Connection (Part 3)
-Panel
Common Connection Board (Photo)-Common Relay Board
High Voltage Board (Photo)-Common Relay Board (Photo)
Locked
Unlocked
86
Symptom : Vertical line Block
Horizontal Line
(Note)Typical Symptom are only shown. Another Symptom might appear.
Cause/Countermeasure:1 Failure in Scan IC on Scan Relay Board - Exchange Scan Relay Board.2 Open or contact failure of Scan Flexible Cable (CN01-CN04) at output side of Scan Relay Board (U,D)
] Clean, Reconnect or exchange connector.3 Contact failure of connector between Scan Board and Scan Relay Board
] Clean, Reconnect or exchange connector. 4 Short between terminals of Scan IC due to screw dust
] Clean around the terminals.
Cause/Countermeasure:1 Open or contact failure of connector between Data Relay Board
and Digital Board/High Voltage Board] Clean, Reconnect or exchange connector.
2 Open or contact failure of multiple Data flexible Cables] Clean, Reconnect or exchange connector.
3 Failure in Data Relay Board] Exchange the Data Relay Board.
4 Failure in multiple Data IC] Exchange PDP.
Cause/Countermeasure:1 Open or contact failure of Data flexible Cable
] Clean, Reconnect or exchange connector.2 Failure in Data IC
] Exchange PDP.
Symptom : Horizontal lines
87
Cause/Countermeasure: 1F302 open ]Exchange High Voltage Board.
Symptom:No Picture(Priming flash).
Picture Defect (Note) Typical symptom are only shown. Another Symptom might appear.
High Voltage Board
OK: Short
NG: Open
Glass Fuse (F302)
88
Cause/Countermeasure:2 If the connector CN7709 disconnected from Data Relay Board (RU )is short-circuited between Pin 1 (or 2) and GND (Pin 3 or 4) ] Data IC is broken ]Exchange PDP.3 If the connector CN7709 disconnected from Data Relay Board (RU) is short-circuited between Pin 5 (or 6) and GND (Pin 3 or 4) ] Data Relay Board (LU) or (RU) is failed ]
a) If the connector CN7608 disconnected from Data Relay Board (LU) is short-circuited between Pin 1 and GND (Pin 2 or 6) ]Data Relay Board (LU) is failed ]Exchange Data Relay Board (LU).
b) If the connector CN7708 disconnected from Data Relay Board (RU) is short-circuited between Pin 1 and GND (Pin 2 or 6) ]Data Relay Board (RU) is failed ]Exchange Data Relay Board (RU).
Data Relay Board (RU)Data Relay Board (LU)
CN7709
Data Relay Board (RU)
OK: Open
NG: Short
CN7608 CN7708 CN7709
OK: Open
NG: ShortData Relay Board (RD)
Cause/ Countermeasure :4 If the connector CN7909 disconnected from Data Relay Board (RD) is short-circuited between Pin 1 (or 2) and GND (Pin 3 or 4) ] Data IC is broken ] Exchange PDP. 5 If the connector CN7909 disconnected from Data Relay Board (RD) is short-circuited between Pin 5 (or 6) and GND (Pin 3 or 4) ] Data Relay Board (LD) or (RD) is failed ]
a) If the connector CN7808 disconnected from Data Relay Board (LD) is short-circuited between Pin 8 and GND (Pin 3 or 7) ] Data Relay Board (LD) is failed ] Exchange Data Relay Board (LD).
b) If the connector CN7908 disconnected from Data Relay Board (RD) is short-circuited between Pin 8 and GND (Pin 3 or 7) ] Data Relay Board(RD) is failed ] Exchange Data Relay Board (RD).
CN7909
Data Relay Board (RD)Data Relay Board (LD)
CN7808 CN7908 CN7909
89
Checkpoints
PH2401FCause/Countermeasure: No Diode characteristic ]Exchange High Voltage Board.
PH2401F
Symptom:No Picture. (Priming doesn’t flash if W-X erminals are short-circuited.)
High Voltage Board; Surface
High Voltage Board; Reverse
K (57~59)
L (61~64)
M (66~69)
N (71~74)
O (76~78)
P (81~84)
Q (86~89)
R (91)
S (93~96)
T (99~103)
V (107)W(109)X (112)
J (55~56)
D (15~18)
F (33~35)
C (10~13)
A (1~4)
B (6~9)
E (24)
G (39~40)
H (49~50)I (53)
OK: Diode characteristicNG: Other than above
A-D M-LA-E N-PB-D O-PC-D Q-RE-R R-SF-N R-TG-M S-TH-I T-VI-J W-XK-L
90
Symptom:Abnormalities in a picture
Cause/Countermeasure : 1 Contact failure of connector adjacent to Digital Board or short circuit due to conductive obstacle] Clean or Reconnect
2 Failure in circuit on Digital Board] Failure in Digital Board
One or more vertical bands,Multiple vertical lines
Transparent vertical band
Out of synchronization orduplication
Rectangular color shear,color discrepancy,shear in display
Mosaic
A number of lateral lines,Regular noise
91
Power off
Cause/Countermeasure: 1 F301 open ] Exchange High Voltage Board. 2 FU801 open ] Exchange Digital Board.
(Note) Typical Symptom are only shown. Another Symptom might appear.
OK: ShortNG: Open
Glass Fuse (F301)
Chip Fuse (FU801)
Symptom: No Picture(Priming doesn’t flash) ] Power off
Digital Board
High Voltage Board
OK: ShortNG: Open
92
Scan Relay Board (U)
Cause/Countermeasure : If short-circuited, disconnect connector between High Voltage Board and Scan Relay Board and,4 Short between NEGA-POSI on High Voltage Board ]Exchange High Voltage Board.5 Short between NEGA-POSI on Scan Relay Board (U) ]Exchange Scan Relay Board (U).6 Short between NEGA-POSI on Scan Relay Board (D) ]Exchange Scan Relay Board (D).
CheckpointNEGA-POSI
OK: More than kΩNG: Short
High Voltage Board
CheckpointNEGA-POSI
NEGA
NEGA
POSI
POSI
OK: More than kΩ NG: Short
High Voltage Board Scan Relay Board (D)
93
Fuse Resistor (R91)
Symptom: No Picture ] Power off(Priming flash)
Cause/Countermeasure: R91 open ] Exchange High Voltage Board.
High Voltage Board
R91 OK: About 2.2 Ω(1W)NG: Open
94
Dark and rough picture
Many light spots on dark portion
Fuse Resistor (R43),(R61)Fuse Resistor (R150)
Symptom: Failure in Writing ] Power off
Cause/Countermeasure: R43,R61 open ] Exchange High Voltage Board.
Symptom: White pattern even in no signal ] Power off
Cause/Countermeasure:R150 open] ExchangeHigh Voltage Board.
R43 OK: About 3.3 Ω(2W)NG: Open
R61 OK: About 4.7 Ω(2W)NG: Open
R150 OK: About 4.7 Ω(2W)NG: Open
95
(Caution) Put cushion under failed PDP to cover general surface of glass before laying it’s screendown.
Prepare tools.
Prepare product.
Disconnect connectors and cables on failed Board.
Detach failed Board.
Put on good Board.
Connect connectors and cables.
Disassembly
Right photo
Right photo
Page 128
Page 128
Page129-130
Follow the procedure below for diagnosis.
Page129
METHOD OF DISASSEMBLY
96
(Caution) Be careful of handling cables and connectors to avoid Failure. Be sure to take off Heat Sink before detach Data Relay Board. See Page 30 for the procedure.
Detach connectors and cables on failed Board.C
omm
on C
onne
ctio
n B
oard
5 co
nnec
tors
Data Relay Board (LD)8 connectors
Data Relay Board (LU)8 connectors
Data Relay Board (RU)9 connectors
Digital Board
7 connectors
Common Relay Board
1 connectorHigh Voltage
Board
6 connectors
Data Relay Board (RD)9 connectors
Sca
n R
elay
Boa
rd (
D)
5 co
nnec
tors
Sca
n R
elay
Boa
rd (
U)
5 co
nnec
tors
Loosen screws of failed Board and put on good Board.
Sca
n R
elay
Con
nect
ion
Boa
rd2
scre
ws
Data Relay Board (LD)3 screws
Data Relay Board (RD)3 screws
Data Relay Board (RU); 3 screws
Common Relay Board15 screws
Digital Board 4 screwsCom
mon
Con
nect
ion
Boa
rd9
scre
ws
Sca
n R
elay
Boa
rd (
D)
2 sc
rew
s S
can
Rel
ay B
oard
(U
)2
scre
ws
High VoltageBoard15 screws
(Caution) Be careful not to leave screwdriver, screw or screw dust. Be sure to take off Heat Sink before detach Data Relay Board. See the next page for the procedure.
Data Relay Board (LU); 3 screws
97
Put on connectors and cables of good Board.
(Caution) Be sure to put on Heat Sink after assembling Data Relay Board.
Digital Board7 connectors
Common Relay Board1 connector
High Voltage Board
6 connectors
Data Relay Board (LU)8 connectors
Data Relay Board (RU)9 connectors
Data Relay Board (LD)8 connectors
Data Relay Board (RD)9 connectors
Sca
n R
elay
Boa
rd (
D)
5 co
nnec
tors
Sca
n R
elay
Boa
rd (
U)
5 co
nnec
tors
Com
mon
Con
nect
ion
Boa
rd5
conn
ecto
rs
98
How to detach Heat Sink (Caution) Stress on detaching easily breaks flex cable because Data TCP issticking with Heat Sink (heat-conductive silicone sheet).(See Photo4)
1. Slowly swing Heat Sink back and forth.(1,2)2. Gently lift Heat Sink up from Data TCP.(1,2)3. Repeat1 and 2 until Heat Sink is taken off.(3)
Heat Sink and Data TCP
Before detaching
1
2
3
4
Heat Sink
Reverse of Heat Sink
Heat-conductive silicone sheet
Be careful of sticking.
Data TCP mountedon Flexible cable
99
(2) Voltage Label Check
Be sure to confirm voltages on Voltage label before conducting adjustment.
Example
Vbw : 115.2
Vsw1 : 220.2
VP : 249.8
Vsw2 : 210.1
Voltage Label
(s190.0/d70.0)115.2/220.2/249.8/210.1*************************************408200943
Vbw Vsw1 Vp Vsw2
(1) Adjustments
Follow the procedure below.
1-1)Conduct “(3)Adjustment of Vsw1 & Vsw2”and“(4)Adjustment of Vbw& Vp”, when High Voltage Board is replaced.1-2) There is no need of adjustment if Board other than High Voltage Board.
(3) Adjustment of Vsw1 & Vsw2 (Caution) Use the nearest chassis for grounding.
VR3 Vsw1
TP328 Vsw1
VR4 Vsw2
TP310 Vsw2
Vsw1 : Adjust VR3 so that the voltage between Test Pad (TP328) and GND becomes“Rated Voltage on Label ± 0.5V”.
Vsw2 : Adjust VR4 so that the voltage between Test Pad (TP310) and GND becomes“Rated Voltage on Label ± 0.5V”.
High Voltage Board
100
(4) Adjustment of Vbw & Vp (Caution) Use the nearest chassis for grounding.
VR2 Vbw
TP329 Vbw
VR1 Vp TP327 Vp
Vp : Adjust VR1 so that the voltage betweenTest Pad (TP327) and GND becomes“Rated Voltage on Label ± 0.5V”.
Vbw : Adjust VR2 so that the voltage betweenTest Pad (TP329) and GND becomes“Rated Voltage on Label ± 0.5V”.
High Voltage Board
101