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Colour Television
Service Manual
Model CE25DN5-C
Service Ref. No. CE25DN5-C-00
PRODUCT CODE: 111351216
ORIGINAL VERSION: Chassis No. EB6-A
Give complete "SERVICE REF. NO." for parts
order or servicing, it is shown on the rating sheet
on the cabinet back of the TV set.
Note
This TV receiver will not work properly in foreign
countries where the television transmission
system and power source differ from the design
specifications. Refer to the specifications for the
design specifications
Contents
Safety precautions/Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Block diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3~5
Cabinet Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Adjustment and Repair Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7~11
Component Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14~15
IC Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16~20
Pin description of semiconductors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Part Description and reading of schematic diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Cabinet Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Electric Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24~31
Part No.
SKSM0397
C2VVS
AUGUST 2000
25DN5
CE
-C
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Summary of Contents for Sanyo CE25DN5-C
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Page 1: Table Of Contents
Colour Television 25DN5 Service Manual Model CE25DN5-C Service Ref. No. CE25DN5-C-00 PRODUCT CODE: 111351216 ORIGINAL VERSION: Chassis No. EB6-A Give complete "SERVICE REF. NO." for parts order or servicing, it is shown on the rating sheet on the cabinet back of the TV set. -
Page 2: Safety Precautions/Specifications
SAFETY PRECAUTION 1: An isolation transformer should be connected in the 3: When replacing a chassis in the cabinet, always be power line between the receiver and the AC line certain that all the protective devices are installed when a service is performed on the primary of the properly, such as, control knobs, adjustment covers converter transformer of the set. -
Page 3: Block Diagrams
BLOCK DIAGRAM This is a diagram for all models and therefore differs slightly from the actual block diagram. Outline C2VVS... -
Page 4: System Control
AV Selector IC1201 NICAM DECODER AV-SELECTOR <MM1313> K12H Q1203 FRONT AV3 MONITOR-OUT FRONT-AV (V)34 1(V) 2(L) Q1202 MONITOR-OUT 4(R) Y-IN SC-1 SC-1 13(V) (VIDEO/AUDIO-L/R) 14(L) 16(R) SC-2 SC-2 IC3451 C-IN 7(V) (VIDEO/Y/C/AUDIO-L/R) 8(L) NICAM 9(Y) L-OUT & 10(R) 11(C) R-OUT STEREO K12J <TDA9875>... - Page 5 Deflection Control IC501 V-Output<LA7846> Deflection Yoke Vert. V-Drive Coil IC201 IF/VIDEO/ Q431 DEFLECTION H-Output Horiz. T431 Q431 <TB1251> Drive Trans Coil H-Drive T451 FlyBack Trans D441 CS SW Screen Width Control EW-Out Pcc Control Q461 Q462 C2VVS...
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Page 6: Cabinet Disassembly
CABINET DISASSEMBLY CABINET BACK DISASSEMBLY 1. Remove 7 screws(A). 2. Pull out the cabinet back. PLACING THE CHASSIS TO SERVICE POSITION 1. Pullout the chassis and put it to the rails on the side cabinet. 2. Fix main board with hook on the top rail. C2VVS... -
Page 7: Adjustment And Repair Procedures
OPTION SETTING [After replacing the Memory IC (IC803)] The memory IC, IC803, stores the option data of TV set and service adjustments data for each circuit, therefore, when the memory IC is replaced, it should be performed following setting and “SERVICE ADJUSTMENT” on next page. -
Page 8: Service Adjustments
SERVICE ADJUSTMENTS Note: Some items of the service adjustments for this chassis are controlled by the CPU, IC801, and the adjustments are carried out by using the RC handset. [After replacing the Memory IC (IC803)] The memory IC, IC803, stores the service adjustments data for each circuit, therefore, when the memory IC is replaced, it should be performed “OPTION SETTING”... - Page 9 To select the mode and service item and change data value + Highlight the desired adjustment mode by using the P or P button and then press the F/OK button. + To select the adjustment item, use the P or P button.
- Page 10 ADJUSTMENTS IMPORTANT NOTICE Do not attempt to adjust the following service adjustments except when adjustments are required in servicing otherwise it may cause loss of performance and product safety. DRIVE ADJUSTMENT + B VOLTAGE ADJUSTMENT 6. Select item no.3 “REGULAR 3, GRY” (G-Drive) or 4 “REGULAR 4, GRY”...
- Page 11 CORNER ADJUSTMENT 1. Receive cross hatch pattern and set screen mode to VERTICAL HEIGHT ADJUSTMENT “FULL”. 1. Receive circular pattern and set screen mode to 2. Enter to the service mode and select mode “WIDE”, “FULL”. and select item no. 10 “WIDE 10.P CNR”. 2.
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Page 12: Cpu Port Functions
CPU PORT FUNCTIONS Pin No. Function Name Function IN/OUT MMU0 External memory 0 MMU3 External memory 3 ADDR10 Address bus 10 Data Strobe ADDR11 Address bus 11 ADDR9 Address bus 9 ADDR8 Address bus 8 Read Write Strobe Power Supply OSC-IN Clock Input OSC-OUT... - Page 13 Pin No. Function Name Function IN/OUT WSCF VPS/WSS Slicer Line PLL VDD-A Analogue Power Supply PXFM Pixel Frequency Multiplier RESET Reset Input (Active L) MCFM Pixel Frequency Multiplier JTRSTO TXCF CVBS0 TEST0 CVBS1 Video signal Input CVBS2 Video Signal Input GND-A DAT3 Data bus 3...
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Page 14: Component Locations
COMPONENT LOCATIONS MAIN BOARD A101 T131 IC001 IC802 IC501 Q432 T611 -14- C2VVS... -
Page 15: Crt Board
CRT BOARD Q701 C735 K7D1 -15- C2VVS... -
Page 16: Ic Block Diagrams
IC BLOCK DIAGRAMS IC001 TDA7263M <Audio Output> CF COUPL RF1 27K IN -L OUT L IN +L MUTE PROTECTION REFERENCES TURN-ON SUPPLY AND-OFF PROTECTION VOLTAGE IN +R OUT R IN -R TDA7263M RF1 27K CF COUPL IC501 LA7846N <Vertical Output> THERMAL PUMP PROTECTION... - Page 17 IC201 TB1251AN <IF/Video/Chroma/Def.> H.AFC ABCL IN ref R FBP IN/SCP OUT H Vcc(9V) V OUT H OUT V NFB V RAMP Dig GND V BIAS FILTER B OUT BLACK Det G OUT Dig.VDD R OUT Sync in YC GND Y IN EXT.B IN DC Restor EXT.G IN...
- Page 18 IC1301 LA6393D <Operation Amplifier> IC1303 M34225M1<Single Chip Micro-computer> -18- C2VVS...
- Page 19 IC1201 MM1313BD<AV Selector> IC3451 TDA9875A <NICAM & Stereo Sound Decoder> AUXOR SIF1 AUXOL SIF2 -19- C2VVS...
- Page 20 IC3001 FA5311P <Power Switching Controller> BIAS UVLO FA5311P IC3051 TA8216H <Audio Amplifier> TA8216H AMP2 AMP1 SPEAKER SPEAKER -20- C2VVS...
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Page 21: Pin Description Of Semiconductors
PIN DESCRIPTION OF SEMICONDUCTORS Diode Diode K: Cathode A: Anode Transistor/FET Transistor/FET C: Collector D: Drain B: Base G: Gate Index E: Emitter S: Source C1 C2 C1 C2 (GND) RESET (IN) (OUT) Index Index Index Index Index Index Index Index Index -21-... -
Page 22: Part Description And Reading Of Schematic Diagram
PARTS DESCRIPTION AND READING IN SCHEMATIC DIAGRAM 1. The parts specification of resistors, capacitors and Resistor Reading coils are expressed in designated code. Please Example 1/2 D J 10K B check the parts description by the following code table. Characteristic 2. -
Page 23: Cabinet Parts List
CABINET PARTS LIST FOR MODEL CE25DN5-C-00 Note: Parts order must contain Service Ref. No., Part No., and descriptions. Ref. No. Part No. Description Ref. No. Part No. Description 411 076 1301 SCR TPG BRZ 4X14 CABINET PARTS 610 286 7596... -
Page 24: Electric Parts List
Note: Parts order must contain Service Ref. No., Part No., and descriptions. Description Part No. Ref. No. Chassis construction CE25DN5-C-00 1AA0B10H042L0 ASSY,PWB,MAIN C2VVS (Page 24~29) 1AA0B10E59200 ASSY,PWB,NICAM-SW C2HA (Page 29~31) - Page 25 Description Ref. No. Part No. Description Ref. No. Part No. C1109 403 233 0817 ELECT 10U M C441-1 610 092 1887 EYELET C1110 403 166 9215 CERAMIC 10P J C441-2 610 092 1887 EYELET C121 403 149 9218 CERAMIC 0.01U Z C445 403 233 0817 ELECT...
- Page 26 Ref. No. Part No. Description Ref. No. Part No. Description IC641 409 241 5407 IC BA178M05T DIODE IC642 409 377 5401 IC L78M09CV D1001 407 063 8319 ZENER DIODE MTZJ11C D1002 407 063 8319 ZENER DIODE MTZJ11C IC801 410 329 1600 IC ST92R195 D1003 407 063 8319 ZENER DIODE MTZJ11C...
- Page 27 Ref. No. Part No. Description Part No. Ref. No. Description Q242 405 002 0318 TR 2SA1037K-T96-R R1028 401 105 4017 MT-GLAZE 330 JA 1/16W Q243 405 002 0318 TR 2SA1037K-T96-R R103 401 061 4400 OXIDE-MT 33K JA Q244 405 002 0318 TR 2SA1037K-T96-R R1101 401 105 2815 MT-GLAZE 2.2K JA 1/16W...
- Page 28 Part No. Ref. No. Part No. Ref. No. Description Description R245 401 218 4614 MT-GLAZE 5.6K FA 1/16W R642 401 014 6149 CARBON 150K JA 1/4W R246 401 105 4710 MT-GLAZE 39K JA 1/16W R643 401 065 5809 OXIDE-MT 15 JA R247 401 105 7919 MT-GLAZE 0.000 ZA 1/16W...
- Page 29 Ref. No. Description Ref. No. Part No. Part No. Description R-RNBOURN1025 RESISTOR NETWORK MISCELLANEOUS SW1901 610 011 4432 SWITCH,PUSH A101 645 040 4528 TUNER,U/V A1901 645 028 1044 REMO REC SPS-443-1-E SW1902 610 011 4432 SWITCH,PUSH F601 423 022 2102 FUSE 250V 4.0A SW1903 610 011 4432 SWITCH,PUSH...
- Page 30 Ref. No. Description Ref. No. Part No. Part No. Description C3504 403 298 9619 CERAMIC 0.1U K R1216 401 105 7919 MT-GLAZE 0.000 ZA 1/16W C3505 403 248 1618 ELECT 47U M R1217 401 105 5212 MT-GLAZE 470 JA 1/16W C3506 403 248 2813 50 YK 2R2 M TA 0511...
- Page 31 All information in this manual is correct at the start of C731 403 077 2728 CERAMIC 1000P P production. Sanyo reserves the right to modify C732 403 074 5712 CERAMIC 560P K components and procedures in order to comply with...
- Page 32 Sanyo Industries (UK) Ltd Printed in UK -32- C2VVS...