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SANYO AC5-CG

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FILE NO.

SERVICE MANUAL Colour Television

Model No. CE14SP4R(Russia)

Service Ref. No. CE14SP4R-50

TIMER

TV/AV

1 5 9BASSTV/AV MENUCH

2 6 0

3 7 -/--

4 8

A B SURROUND

P

P

P

V ID EO

AUDIO

CH SCAN

PMENU

SWAP PIC MODE

JXMYA

SpecificationsPower Source . . . . . . . . . . Colour System . . . . . . . . . Television System . . . . . . Channel Coverage . . . . . AC110-240V, 50Hz/60Hz. PAL/SECAM/NTSC4.43/NTSC/PAL-60Hz B/G, D/KK, I, M/M VHF: E2-E12, A2-A13, R1-R12, J1-J12, K1-K9 UHF: 21-69, A14-A69, J13-J62 CATV: S1-S41, X, Y, Z, Z+1, Z+2

Product Code: 111356544 Original Version Chassis Series: AC5-CG

Video IF . . . . . . . . . . . . . . 38.0MHz Aerial Input Impedance . . 75 Ext. Terminals Video inputs: Phone jack 2 (1Vp - p, 75) Audio inputs: Phone jack 2 (436mVrms, more than 40K) Video monitor outputs: Phone jack 1(1Vp - p, 75) Audio monitor outputs: Phone jack 1(436mVrms, less than 600) Sound Output (RMS) . . . . 5 W Speaker . . . . . . . . . . . . . . 6 cm 12 cm 2 pcs. Dimensions . . . . . . . . . . . . 364.5 (W) 361.7 (H) 383.3 (D)mm Weight . . . . . . . . . . . . . . . approx. 8.6 Kg Specifications subject to change without notice.

Give complete SERVICE REF. NO. for parts order or servicing. It is shown on the rating plate at the cabinet back of the unit.

This T.V. receiver will not work properly in foreign countries where the television transmission system and power source differ from the design specifications. Refer to the specification table. REFERENCE NO.

C4FVH

SM5110650

X161 SAW FILTER9V 180V R G

A101 TUNER CRT UNITKEY-IN RC-IN ON-TIMER

FRONT CONTROL KEYS SW1901 - SW1906 A1901A RC RECEIVER

D1910 LED

Q901 CRT

12

28 32B

REAR AV TERMINAL

IC801 CPU19 20 21 3 SDA SCL 4HEATER

HV L902 DY

VIDEO IN

Chassis Block Diagrams

AUDIO IN

OSD R-OUT

OSD G-OUT

OSD B-OUT

MAIN SIGNAL PROCESSING CIRCUIT

FRONT AV TERMINAL

5 6 IC802 EEPROM T431 H-DRIVE TRANS. Q431 H-DRIVE

1

IC501 VERT. /DEF. 5Q432 H-OUT

VIDEO IN

IC201 IF/VIDEO/CHROMAIF IN EXT. VIDEO IN 19 20 R-OUT G-OUT B-OUT 21 42 5/6 14 15 16OSD R-IN OSD G-IN OSD B-IN

FOCUS SCREEN

AUDIO IN

INT. VIDEO IN 44 SIF OUT SIF IN AUDIO OUT

52 54 1 23 VERT. OUT

RGB MATRIX

-3VIDEO OUT 46

HV

T471 FBTPOWER SUPPLY CIRCUIT

IC001 AUDIO AMP. 6AUDIO MONITOR OUT

SP901

AUDIO OUT

2 8SELECTED VIDEO OUT

27 HORIZ. OUTT611 CONVERTER TRANS. Reg.5VRC

SP902

AUDIO OUT

12

2

1H DL 40 35 R-Y OUT 34 B-Y OUT

IC281 SECAM7 9 17

9V 11V 24V

VIDEO MONITOR OUT EXT. AUDIO IN

REAR AV TERMINAL

AUDIO MONITOR OUT

51 VIDEO IN

SWITCH

VR631

130V

SOUND MUTE (MUTE=H)

IC001 AUDIO AMP. 29 11 13 12 KEY SWITCH IN KEY SWITCH IC801 CPU QXXAVC305P COLOUR SYSTEM OPTION INPUT 34 BASS EXPANDER CIRCUIT

SYSTEM CONTROL

BASS EXPANDER ON/OFF (ON=HIGH)

Chassis Block Diagrams

RESET INPUT (RESET=LOW)

SECAM KILLER INPUT (HIGH=SECAM)

SCL 2 9 1 POWER ON/OFF (ON=HIGH, OFF=LOW) SDA SDA 31 33 11 12AFT SIGNAL INPUT

4 5

A101 F/S TUNER

VIF-M OUTPUT (HIGH=NTSC, LOW=OTHER) RC SIGNAL IN (ACTIVE=HIGH)

PHOTO COUPLE

SCL

-428 10OSD BLK OUT(Active=High) 22 OSD RED OUT(Active=High)

RC PRE-AMP. 32 6 7 4 SCL SDA 3 17 27

IC201 IF/VIDEO / CHROMA/DEF.

ON-TIMER LED OUT (ON TIMER ON=Low)

LED CPU OSC IN CPU OSC OUT

OSC X801

19 OSD GREEN OUT(Active=High) 20 OSD BLUE OUT(Active=High) 21 18HORIZ. SYNC IN (ACTIVE=LOW) VERT. SYNC IN (ACTIVE=LOW)

32.768KHz

DEFLECTION CIRCUIT

6

5POWER PROTECT IN (POWER ERROR=LOW)

IC802 MEMORY

POWER CIRCUIT etc.

IC Block DiagramsIC201 < IF/Video/Chroma/Def. > LA76818

DC VOL

BPF

SW

54

Audio Output FM Output/Selected Audio Output PIF AGC RF AGC Output PIF Input1 PIF Input 2 IF Ground IF Vcc FM Filter AFT Output Bus Data Bus Clock ABL Red Input Green Input Blue Input Fast Blanking Input RGB Vcc Red Output Green Output Blue Output fsc output or C Sync output Vertical Output Ramp ALC Filter Horizontal/BUS Vcc Horizontal AFC Filter Horizontal Output

SIF Input SIF APC Filter SIF Output Ext. Audio Input APC Filter VCO Coil 1 VCO Coil 2 VCO Filter Video Output Black Level Detector Internal Video Input (S-C IN) Video/Vertical Vcc External Video Input(Y-IN) Video/Vertical/BUS Ground Selected Video Output Chroma APC1 Filter 4.43 MHz Crystal Clamp Filter Chroma APC2 Filter SECAM R-Y Input (Cr Input) SECAM B-Y Input (Cb Input) CCD/Horizontal Ground CCD Filter CCD Vcc Clock (4MHz) Outupt VCO IREF Flyback Pulse Input

FM DET

LIM AMP

BPF

1 2 3 4 5 6

SPLL

53 52

IF AGC

RF AGC VIDEO DET VIDEO AMP TRAP VIF A2C PLL IF VCC 5V AFTPEAKING CORING

51 50 49 48

78 9 10 11 12 13 14 15 16 17 VCC 19 18 20 21 22 23 24 25 26PHASE SHIFTER DRIVE/OUT-OFF FSC/ SYNC SW

47

IF IDENT

46 45

DELAY LINE

VIDEO SW

TRAP

CLMP

44

BUS ABLOSD CONTRAST BRIGHT

42 43 V/C VCC 5V

BLACK STRETCH

SYNC SEP ACC

SWBPF ON/OFF

CLMP

DC REST

41

APC1

CLAMP VER RAMP HOR VCC H VCC HOR OUT

40

VXO

DEMO

39

TINT

PAL SW

DDS

38

CONTRAST BRIGHT

CLAMP

APC2

VCO

37 36

RGB MATRIX COLOR CLAMP

OSD SW VER C/D

35

CLAMP

DC ADS.

SW +

34 33

1H DELAY

32

VER SEP AFC1 AFC2

30 31 1H VCC

LPF ALC 1/256 HOR C/D HOR VCO

29

FBP

28

27

-5-

1K 10p 0.01u SIF.Out 52 53 500K Det FM Gain 1bit + FM.Level 5bit + 2.5V Chroma C/D Amp Amp SIF VCO SIF. Sys 2bit APC DetVIF 3

Data Clock SIF.In 54 LIM AMP 500K BPF FM Det Sound BPF Amp prescaller OSC C/D Sound Trap Amp B/N INV IF Ident To BUS Input Select A.SW 1bit A.MUTE 1bit Lock Det VIF Counter To BUS VIF VCO PLL Pull-in SW 50 PIF AGC APC Filter+

SIF APC Filter 1000p

11 Snd Det Deem-TC 1bit

12

BUS Interface

to BUS Line

IC Block Diagrams

VIF AMP

9+

PIF In1

1u 46 Video Out+

IF In Video Det

5

0.01u

Deemph

2

FM Out

SAW

VIF 1

VIF 2

FM Mute 1 bit

FM Filter

PIF In2

6

IC201 LA76818Audio in 51 VOLUME (ATT) VOLUME Filter VOLUME D/A A.Fil.Def 1bit VOLUME 7bit 10u 1 Audio.out

9V Video.Level 3bit 2ndIF AGC Chroma VCO Buzz Canceller IF AGC

120K

+/4

VCO AlignmentReset Pulse

+ To BUS

100K Chroma Counter AFT 49 10 48 VCO COIL1 VCO COIL2 VCO.Coil

IF GND APC Det 3 0.022u 330 0.47u

(6 Vcc)/7

VIF.Sys 2bit

Phase Detector Vcc AFT 100K 0.1u

7

0.47u VCO Ident

-6-/4

RF AGC Out

+

30K

IF AGC Drive

4

RF AGC

RF AGC Delay 6bit

IF VCC

IF AGC Def 1bit

47+

+

8

VCO Filter

IC Block DiagramsIC501 < Vertical Output > LA78040/LA78040NThermal Protection AMP +Bell/EQU Adj

IC281 LA7642NM-E-PEQU-Adj 20 Vcc 19 N.C. 18 Video In 17 Kil-Out 16 AV/SECAM 4.43MHz In 15 14 N.C. 13 SC-In 12 4MHz In 11

ACC

SW3

System

SW2 VCO

Pulse DET

Bell/EQU Filter KILLER

SW1

PLL DET Filter Clamp

Pulse I/F

LIM F0 Adj

Pump Up1 F0-Fil 2 Kil-Fil 3 N.C.

ID-KIL

ID

SW/ALC

4 4.43DC

5 ID-Fil

6 4M-DC

7 R-Y Out

8 N.C.

9 B-Y Out

10 GND

1 INVERTING INPUT Vcc

2

3 PUMP UP OUT GND

4

5 Ver. OUTPUT

6 OUTPUT STAGE Vcc

7 NON INV. INPUT

IC001 < Audio AMP.> AN7522N

+

-

+

-

-

+

-

+

1Vcc

2Ch.1 Input (+)

3GND (Ch. 1 Output)

4Ch.1 Output (-)

5Standby

6Ch.1 Input

7GND (Input)

8Ch.2 Input

9Volume

10Ch.2 Output (-)

11GND (Ch. 2 Output)

12Ch.2 Output (+)

Service InformationI Protection CircuitThis TV set has a built-in power supply protection circuit. It is provided to protect the TV set in case of a power supply circuit malfunctions. When something abnormality occurs during TV reception, the TV set goes to the stand-by mode. When an abnormality occurs during TV reception, it causes pin 27 of the CPU to go continually Low for about one second. The CPU detects that this has occurred and outputs the signal from pin 31 to switch off the power supply lines.

Releasing the protective circuit and restoring power supplyTo release the protective circuit and restore power supply, turn the power to the TV set OFF and then ON again via either the main power switch or the ON-OFF button on the remote control. This will work only if the power supply trouble was temporary. If there is permanent trouble such as a damaged circuit, power cannot be restored and the circuit will have to be repaired. -7-

Service Adjustments with Replacing Memory IC(IC802)Note: The CPU (IC801) and memory IC (IC802) store the service adjustments data and controls data for e

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