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Samsung HT-C453 Troubleshooting
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Samsung Electronics 4-1
Troubleshooting
4.Troubleshooting4-1 CheckpointsbyErrorMode
4-1-1 MainPower
No power detected(Stand by LED off)
Change SMPS.
Check Main PCB
NoChange fuse
No
Check Main PCB
Yes
FR1 is OK?
ICFB5401 Pin 1 is 2.5VCON3 Pin 12, 13, 14 is 5.4V?No
4-2 Samsung Electronics
Troubleshooting
4-1-2 NoSound
Check speakers.(speaker change)
Yes
Yes
Replace AMP IC.(AIC4, AIC19)
No
1Check JA5 input signals.
(1khz signal)
No Sound
No
Check Power Lines.(Check IC36).
Check DAC output signal lines between IC10 and AIC4 and
AIC19
Yes
Yes
Replace IC10.
No
Check DAC3.3V of IC10(pin 86)
3Check MPEG DAC output
(1.7v offset) (pin 83, 84, 85, 88, 89, 90of IC10 ES8398)
No
Check jack Input.
Check AMP input.
Check MPEG Ouput.
Refer to wave pattern image of Fig. 4-1.
Refer to wave pattern image of Fig. 4-2 and Fig. 4-3.
Refer to wave pattern image of Fig. 4-4.
2Check AIC4, AIC19 input signals
(AC54, AC55, AC56,AC1, AC2, AC3)
Check MPEG DAC Power.
Samsung Electronics 4-3
Troubleshooting
DTP3
LTDL-RX16S01B
1JA4
A_GND
PWM_C_P
PWM_SW_P
PWM_RL_P
PWM_RR_P
PWM_FL_P
PWM_FR_PPWM3_L
PWM3_R
AR23
100OHM1/16W
10V
1/16W470OHM
DTP1
DTP2
0.01OHM5000MA
C25710UF
2
R340
L45
3.3KOHM
1/16W
FAN_CHK
10OHM
C330
16V
1UF
5267-02A
1SS355-TE-17
2A_GND
1/16W 10V10UF
R504
1/16W
FAN_SD
1/16W
10UF
C305
R464
16V
10UF
16V
C307
1/16W
47KOHM
R476
1/16W
R478
IC35
4.7KOHM
C313
16V
18KOHM
S4560
D30
1SS355-TE-1780V 80V
100KOHM
1/16W
R501
A_GND
R502
33KOHM
1/16W
6 531
10UF
+12V
R485
4.7KOHM
R503
2SC1008-Y
R465
A_GND
4
LHPR5
10KOHM
1/10W
1/16W
1/16W
LHPR13
1NF
1/16W
LHPC1
LHPR3
1/16W
10KOHM
LHPR8
4.7KOHM
1.8KOHMLHPR4 1/16W
LHPR127.5KOHM
LHPC7
1/16W
50V
680PF
S4560
65
2
LHPR14
220UH
1/16W
VAA+5V
8
LHPC9
10UF
1/16W
10KOHM
A_GND
100PF
50V
LHPC12
LHPR15
100PF
50V
LHPC13
7
100OHM
VSS-5V
IC32
LHPC11
A_GND
10UF
22UF
3
DGND
LHPL1
R516
R515R514
21
CN12
C320
R500
8 7
D34
R468Q29
LHPR16
LHPL2LHPR18
LHPR17
LHPC10LHPC6
4 3 1
LHPR10
LHPC8
LHPR11
LHPC5
LHPR9LHPC2
AR20
AR21
AR22
AR24
AR25
1/16W
1W
1/16W
SPDIF_IN
680PF
6.3V 33OHM
4.7KOHM
16V
220UH
A_GND
4.7KOHM
A_GND
1.8KOHM
25V
7.5KOHM1/16W
1/16W
1/16W
47KOHM
A_GND
100OHM
1/16W
0OHM
1/16W4.7KOHM
+12V
33OHM
1/16W
PWM1_R
PWM1_L
50V
D5V
1/16W
1/16W
1/16W100OHM
100OHM
100OHM
1/16W
PWM2_R
PWM2_L
50V
LINE_O_L
LINE_O_R
50V
27OHM
+12V
16V
1/2W
15KOHM
1/16W
1/16W
33KOHM
100OHM
22UF
4.7KOHM
10KOHM
1/16W
A_GND
6.3V
1NF
10UF
3
2
1
VOUT
GND
VCCIN2+
VEE OU
T2 VCC
IN2-
IN1+
IN1-
OUT1
EB
C
IN2+
VEEOU
T2VCC
IN2-
IN1+
IN1-
OUT1
E
BC
AMP, page 7-8
CN9
CN4
IC15
IC10
IC11
IC21
IC7
CN
1
CN
2
AIC4 AIC19
CN
5
AC
ON
1
IC36
MAIN PCB Top, page 6-8
<Fig. 4-1>
1
1
1
4-4 Samsung Electronics
Troubleshooting
AUDIO AMP-2, page 7-10
CN9
CN4
IC15
IC10
IC11
IC21
IC7
CN
1
CN
2
AIC4 AIC19
CN
5
AC
ON
1
IC36
MAIN PCB Top, page 6-8
<Fig. 4-2>
2
2
2
Samsung Electronics 4-5
Troubleshooting
AUDIO AMP-3, page 7-11
CN9
CN4
IC15
IC10
IC11
IC21
IC7
CN
1
CN
2
AIC4 AIC19
CN
5
AC
ON
1
IC36
MAIN PCB Top, page 6-8
<Fig. 4-3>
2
2
2
4-6 Samsung Electronics
Troubleshooting
MPEG, page 7-5
CN9
CN4
IC15
IC10
IC11
IC21
IC7
CN
1
CN
2
AIC4 AIC19
CN
5
AC
ON
1
IC36
MAIN PCB Top, page 6-8
<Fig. 4-4>
3
3
3
Samsung Electronics 4-7
Troubleshooting
4-1-3 Composit(Videoout)
Composit (Video out)
Check 3.3V power lines from IC23 to IC36.
No Check if the pin 7, 8 of IC23 are 3.3V.
Check if VDD of 3.3V is measured at the pin 82,
78, 72 of IC10
No
NoCheck if VDD of 3.3V is measured at the pin
10 of IC36.
Yes
1Check if VDAC output is
measured at the pin 77 of IC10 ES8398
Check if output is measured at the pin 14
of IC36 THS7374
Yes
Replace the IC23 IC.
2Check if composite video output is
measured at the JA1.
Replace the IC10 IC
No
Yes
Replace the IC36.
Yes
No
Check MPEG output
Check Video switch.
Check JACK Output
Check the JA1 connectivity and replace.
Refer to wave pattern image of Fig. 4-5.
Refer to wave pattern image of Fig. 4-6.
4-8 Samsung Electronics
Troubleshooting
MPEG, page 7-5
CN9
CN4
IC15
IC10
IC11
IC21
IC7
CN
1
CN
2
AIC4 AIC19
CN
5
AC
ON
1
IC36
MAIN PCB Top, page 6-8
<Fig. 4-5>
1
1
1
Samsung Electronics 4-9
Troubleshooting
AV I/O, page 7-7
CN9
CN4
IC15
IC10
IC11
IC21
IC7
CN
1
CN
2
AIC4 AIC19
CN
5
AC
ON
1
IC36
MAIN PCB Top, page 6-8
<Fig. 4-6>
2
2
2
4-10 Samsung Electronics
Troubleshooting
4-1-4 Component(Y,Pb,Pr)
Component (Y, Pb, Pr)
Check 3.3V power lines from IC23 to IC36.
No Check if the pin 7, 8 of IC23 are 3.3V.
Check if VDD of 3.3V is measured at the pin 82, 78,
72 of IC10.
No
NoCheck if VDD of 3.3V is measured at the pin
10 of IC36.
Yes
1/2/3Check if YDAC,CADC
and UDAC output is measured at the pin 76, 80 and 81 of
IC10 ES8398.
4/5/6Check if output is measured at the pin of 11,13 and 12 of
IC36 THS7374.
Yes
Replace the IC23 IC.
Check if component video output is measured at
the JA1.
Replace the IC10 IC.
No
Yes
Replace the IC36.
Yes
No
Check MPEG output
Check Video switch.
Check JACK Output
Check the JA1 connectivity and replace.
Refer to wave pattern image of Fig. 4-7 and Fig. 4-8.
Refer to wave pattern image of Fig. 4-9 and Fig. 4-10.
Samsung Electronics 4-11
Troubleshooting
MPEG, page 7-5
CN9
CN4
IC15
IC10
IC11
IC21
IC7
CN
1
CN
2
AIC4 AIC19
CN
5
AC
ON
1
IC36
MAIN PCB Top, page 6-8
<Fig. 4-7>
21
12
2
1
4-12 Samsung Electronics
Troubleshooting
MPEG, page 7-5
CN9
CN4
IC15
IC10
IC11
IC21
IC7
CN
1
CN
2
AIC4 AIC19
CN
5
AC
ON
1
IC36
MAIN PCB Top, page 6-8
<Fig. 4-8>
3
3
3
Samsung Electronics 4-13
Troubleshooting
AV I/O, page 7-7
CN9
CN4
IC15
IC10
IC11
IC21
IC7
CN
1
CN
2
AIC4 AIC19
CN
5
AC
ON
1
IC36
MAIN PCB Top, page 6-8
<Fig. 4-9>
4
5
45
4
5
4-14 Samsung Electronics
Troubleshooting
AV I/O, page 7-7
CN9
CN4
IC15
IC10
IC11
IC21
IC7
CN
1
CN
2
AIC4 AIC19
CN
5
AC
ON
1
IC36
MAIN PCB Top, page 6-8
<Fig. 4-10>
6
6
6
Samsung Electronics 4-15
Troubleshooting
4-1-5 HDMIVideo
Check HDMI POWER supply.
(PLL_3.3V, VDD1.2v)
Yes
Yes
Check 3.3V power lines
No
Check IC11 power (3.3V)
1Check Pin 117, 118, 120, 121, 123, 124, 126, 127
of IC10
Analog (Composite)Video OK but HDMI
No
Replace MPEG IC
Yes
Yes
Check PLL3.3V lines and VDD1.2V lines and R150,
R151, R152 value.
No
Check Voltage pin110 pin of IC10(1.5V~1.8V)
Check if 480p output Is ok.
No
Check jack Input.
Check AMP input.
Check MPEG Ouput.
Yes Please, Call to Samsung A/S Center.Replace MPEG IC
Refer to wave pattern image of Fig. 4-11.
4-16 Samsung Electronics
Troubleshooting
33
MPEG, page 7-5
CN9
CN4
IC15
IC10
IC11
IC21
IC7
CN
1
CN
2
AIC4 AIC19
CN
5
AC
ON
1
IC36
MAIN PCB Top, page 6-8
<Fig. 4-11>
1
1
1
Samsung Electronics 4-17
Troubleshooting
4-2 MeasurestobetakenwhentheProtectionCircuitoperates
4-2-1 SMPSProtection
The Condition of Power Protection Active.1. Voltage of SMPS’s +, - PVDD (+30V, -30V) is higher or lower than Standards
Normal Condition Voltage Range: PVDD (+30V, -30V): about +30V, -30V2. Over-current occurs to FET (Over-output or Output short)3. FET’s temperature exceed 150°C.4. No supply voltage on GATE DRIVER.
4-2-2 AMPPre-InspectionrelatingtoPowerProtection
If you think, there are problems at the AMP PCB, you can check the pcb without disassemble the set. (Caution!!: Do not connect the power cord during bellow test!)
MeasurementResistanceusingTester- Approximately
C550 C650 C450
F/R CH 1.8Ω 1.8Ω 1.8Ω
CENTER 1.8Ω 1.8Ω 1.8Ω
SUBWOOFER 1.8ΩΩ 1.8Ω 1.8Ω
<Table 4-1>
If Measured Resistance is very different from above numbers. There is a Problem. →AMPPCBProblem
5.1CHSPEAKEROUTPUT
GND
FRONTR CENTER FRONTL
REARR REARLSUBWOOFER
4-18 Samsung Electronics
Troubleshooting
4-3 MICOM,MPEGInitialization&Update
Micominitial
In no Disc condition, press ‘STOP’ button of Main Unit more than 5 seconds, VF Display will happen to INIT and M int. Then Initialization complete.
MicomUpdate
1. Prepare or Make a DISC-CD or DVD or USB that contains “C550WWM.SSP’ file for update.
2. Play the USB, then “updating” will appear on the screen, then Power will go out after showing ‘complete’ on the screen.
3. Press “Power” key and Press ‘Stop’ button of the remote control more than 5 seconds in No Disc.
<Fig. 4-12 Connecting USB>
<Fig. 4-13 TV Display (On Updating)>
<Fig. 4-14 Update Start>
Samsung Electronics 4-19
Troubleshooting
CheckingoutMICOM&MPEGflashVersion
1. On Root state, Select ‘Set up’.
2. Press “Enter” and move Support.
3. Press “Enter”.
4. Check product information: “SW ver” on TV Display and “Micom SW Ver” on Front ASS’y VFD.
<Fig. 4-15 Connecting USB>
<Fig. 4-16 TV Display (On Updating)>
<Fig. 4-17 Update Start>
4-20 Samsung Electronics
Troubleshooting
DVDflashInitialization&Update
1. Prepare a DISC-CD or DVD or USB that contains ‘C550WWB.ROM’ file for Update.
2. Play the DISC or USB, then ‘Updating’ will appear on the screen, then Power will go out and on.
3. Then DISC-TRAY will open, then remove the DISC or USB, making the Unit as ‘NO DISC’ state.
4. Press ‘STOP’ button of Main Unit for more than 5 seconds, Display Indicator shows ‘INITIALIZE’ then Power goes out.
<Fig. 4-19 TV Display (On Updating)>
<Fig. 4-20 Update Start>
<Fig. 4-18 Connecting USB>
Samsung Electronics 4-21
Troubleshooting
TEST
4-4 Buyer-RegionCodeSettingMethod
4-4-1 TheinsertingmethodofRegionCodeafterreplacingtheMainPBA
[Reference]
- When replacing the Main PBA and System Micom should be inserted the region code.- The set is not working properly if you don't insert the region code.- The region code is inserted by the remote control.
1. Press the “AUX” button on the remote control.
2. Press the "TUNER MEMORY" button on the remote control during 4~5 seconds.
3. After step (2), you can see “TEST” on the VFD.
4. When you see “TEST” on VFD, Insert number “4”, “6” to start Region Code setting mode.
4-22 Samsung Electronics
Troubleshooting
5. Afterstep(4),youcansee“−−”ontheVFD. Insert the Region Code (Below table) corresponding model with “0 ~ 9” buttons on the remote control.
Option Table
AreaHT-C530
RegionCodeHT-C650
RegionCodeHT-C450
RegionCodeRemark
Africa / Pakistan 00 30 60
Brazil 01 31 61 C460 - 90
Canada 02 32 62
China (semi_mic) 03 33 63
Europe 04 34 64
Indonesia / Hongkong 05 35 65
Japan 06 36 66
Korea 07 37 67
Latin American 08 38 68
Mexico 09 39 69
Philippines 10 40 70
Russia (full_mic) 11 41 71
Russia (semi_mic) 12 42 72
South Africa 13 43 73
Taiwan 14 44 74
USA 15 45 75 C460 - 91
Newzealand 16 46 76
England 17 47 77
Australia 18 48 78
Iran (HACO) 19 49 79
India 20 50 80
Israel 21 51 81
Middle Asia 22 52 82
Asia 23 53 83
Singapore 24 54 84
<Table 4-2>
− −
Samsung Electronics 4-23
Troubleshooting
6. After step (5), you can see “15 USA” on the VFD. It means that currently System Micom program is installed by USA specification.
7. Turn the Power off.
[Tip]
In case of System Micom and EEPROM problem, you can apply to this. For example, during Updating program of System Micom, if Updating fail is happened, it is impossible to turn on the system from stand-by status. The system will keep the stand-by status continuously, and the touch-key function will never work.In this case, you have to change System Micom, and set up the Buyer Region code again. In case of EEPROM, you don't need to care about it. After set-up the Region code, System Micom will store the information of the region code to EEPROM automatically.
15USA
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