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Colour Television
Service Manual
Model CE21D4-C
Service Ref. No. CE21D4-C-01
PRODUCT CODE: 111339615
ORIGINAL VERSION: Chassis No. EB4-A
MODEL HISTORY
Service Ref. No. CE21D4-C-01
ORIGINAL MANUAL (CRT A51EBV13X09)
Service Ref. No. CE21D4-C-02
SUPPLEMENT MANUAL (CRT A51EER131X28)
Change of CRT
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
Block diagram
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Circuit description
Cabinet Disassembly
Service control adjustment
Circuit alignment
Important notice
Cabinet Parts List
Electrical Parts List
Part No. SKSM0311-A
(W.Europe)
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F7KTV
REVISION 1
21D4
CE
MAY 1999
-C
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Summary of Contents for Sanyo CE21D4-C
- Page 1 Colour Television 21D4 Service Manual Model CE21D4-C (W.Europe) Service Ref. No. CE21D4-C-01 PRODUCT CODE: 111339615 ORIGINAL VERSION: Chassis No. EB4-A MODEL HISTORY Service Ref. No. CE21D4-C-01 ORIGINAL MANUAL (CRT A51EBV13X09) Service Ref. No. CE21D4-C-02 SUPPLEMENT MANUAL (CRT A51EER131X28) Change of CRT Give complete "SERVICE REF.
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Page 2: Safety Precaution
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 Diagram
BLOCK DIAGRAM This is a diagram for all models and therefore differs slightly from the actual block diagram. F7KTV... -
Page 4: Circuit Description
CIRCUIT DESCRIPTION 1. POWER SUPPLY control) The chroma signal is divided into R-Y and B-Y The power supply circuit of the EB4-A chassis is chroma signals, demodulated in IC201, and output from composed of a rectifier smoothing circuit, an oscillation pin30 (R-Y) and pin31 (B-Y). - Page 5 6. HORIZONTAL OUTPUT Pin25: Black A horizontal oscillation signal is output from pin37 of Pin26: IREF IC201 and switches the drive transistor Q431. This Pin27: Odd/Even output switching signal is current amplified by the drive Pin28: GND transformer T431 and drives the output transistor Q432. Pin29: - When Q432 becomes ON, an amplifying current flows Pin30: V-deflection stop output...
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Page 6: Cabinet Disassembly
CABINET DISASSEMBLY CABINET BACK DISASSEMBLY 1. Remove 7 screws(A). 2. Pull out the cabinet back. ANT75 Ω F7KTV... -
Page 7: Service Control Adjustment
SERVICE CONTROL ADJUSTMENT B1 POWER SUPPLY ADJ. AFT ADJ. TU-AGC ADJ. MAIN BOARD HIGH VOLTAGE & FOCUS ADJ. H-WIDTH ADJ. V-CENTRE ADJ. V-SIZE ADJ. H-CENTRE ADJ. SIF BOARD SIF ADJ. GREY SCALE ADJ. CRT BOARD IC3811 IC3801 K38H2 K38H1 AUDIO BOARD IC1251 IC3451 IC3401... - Page 8 B1 POWER SUPPLY ADJUSTMENT HIGH VOLTAGE & WIDTH ADJUSTMENT 1. Set VR641 to be mechanically centre before [HIGH VOLTAGE ADJUSTMENT] pressing the mains ON/OFF switch. 1. Tune the receiver to the circular pattern. 2. Tune the receiver to a PAL circular pattern. 2.
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Page 9: Circuit Alignment
CIRCUIT ALIGNMENT 10kΩ 0.002µF 75Ω 1kΩ Output probe Input probe VIF alignment SETTING Adjustment Waveform DC 15.5V C644 + By using T141, adjust "P" to AGC voltage (4.3-4.5V) IC201-pin48 be maximum amplitude. Output probe IC201-pin45 (Side b) Input probe IC201-pin7 Marker frequency 38.9MHz Sweep ATT... - Page 10 INITIALISATION (Important Notice) When you replace a memory IC (IC802), it is 2. Select the desired service item by using the Function necessary to initialise the IC as following step. button on the remote control handset. 3. Change the data by using the Level + or - button A.
- Page 11 CABINET PARTS LIST FOR MODELS CE21D4-C -01 Note: Parts order must contain Service Ref. No., Part No., and descriptions. SURROUND BASS -/-- MENU Item Part No. Description CABINET PARTS 610 278 0741 CABINET FRONT-F7KT 610 276 5618 BUTTON POWER-F7WC 610 278 2349...
- Page 12 Note: Parts order must contain Service Ref. No., Part No., and descriptions. Description Part No. Ref. No. Chassis construction Read description in the Capacitor and Resistor as follows: CAPACITOR CE21D4-C-01 CERAMIC 100P K 50V Rated Voltage Tolerance Symbols: ASSY,PWB,MAIN F7KTV 1AA0B10H018T0 (Page 12~17)
- Page 13 Ref. No. Description Description Part No. Ref. No. Part No. Q874 406 007 2106 TR JC546A C1101 403 041 8804 ELECT 10U M Q875 406 007 2106 TR JC546A C1103 403 069 1712 CERAMIC 1000P K C1104 403 041 8804 ELECT 10U M INTEGRATED CIRCUIT...
- Page 14 Description Description Ref. No. Part No. Ref. No. Part No. C437 403 066 6116 MT-POLYEST 0.47U J 250V RESISTOR R001 401 037 5410 MT-GLAZE 1K JA 1/10W C438 403 178 9319 POLYESTER 0.01U J R003 401 037 5410 MT-GLAZE 1K JA 1/10W C441 403 216 7601 POLYPRO...
- Page 15 Ref. No. Description Description Part No. Ref. No. Part No. R1202 401 038 6515 MT-GLAZE 47K JA 1/10W R272 401 024 9028 CARBON 120 JA 1/6W R1203 401 037 5618 MT-GLAZE 10K JA 1/10W R351 401 037 5212 MT-GLAZE 100 JA 1/10W R1204 401 038 2210 MT-GLAZE...
- Page 16 Description Description Ref. No. Part No. Ref. No. Part No. R812 401 038 5112 MT-GLAZE 3.9K JA 1/10W TRANSFORMER R813 401 018 4933 CARBON 33K JA 1/4W T101 610 037 4508 S COIL R815 401 012 4543 CARBON 100 JA 1/4W T141 610 037 4522...
- Page 17 Ref. No. Description Description Part No. Ref. No. Part No. D202 407 063 8319 ZENER DIODE MTZJ11C J245 401 037 5014 MT-GLAZE 0.000 ZA 1/10W D203 407 063 8319 ZENER DIODE MTZJ11C J246 401 037 5014 MT-GLAZE 0.000 ZA 1/10W D210 407 012 4416 DIODE 1SS133-T-77...
- Page 18 Description Description Ref. No. Part No. Ref. No. Part No. R1258 401 038 0711 MT-GLAZE 2.2K JA 1/10W CAPACITOR C3802 403 069 9510 CERAMIC CHIP 0.01 Z R1262 401 039 0512 MT-GLAZE 82K JA 1/10W C3803 403 069 9510 CERAMIC CHIP 0.01 Z R1263 401 039 0512 MT-GLAZE...
- Page 19 406 007 1901 TR JC556A Q751 406 007 1901 TR JC556A All information in this manual is correct at the start of production. Sanyo reserves the right to modify CAPACITOR C701 403 073 2910 CERAMIC 390P K components and procedures in order to comply with...
- Page 20 Sanyo Industries (UK) Ltd Printed in UK F7KTV...
- Page 21 THE ORIGINAL SERVICE MANUAL FOR CE21D4-C-01. SERVICE MANUAL SUPPLEMENT FOR ALL INFORMATION NOT CONTAINED IN THIS SUPPLEMENT PLEASE REFER TO THE ORIGINAL SERVICE MANUAL FOR CE21D4-C- 01. THIS SUPPLEMENT ONLY CONTAINS DIFFERENCE BETWEEN SERVICE REFERENCE NUMBERS. FOR SCHEMATIC DIAGRAM REFER TO CE21D4-C-01.
- Page 22 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 23 Ref. No. Description Description Part No. Ref. No. Part No. Chassis construction CE21D4-C-14 ASSY,PWB,MAIN F7KTS 1AA0B10H039B0 ASSY,PWB,SIF 3D-A2 ST 1AA0B10H0270A ASSY,PWB,AUDIO 3D-A2 1AA0B10H0270B ASSY,PWB,Q-SOUND F3SAM 1AA0B10H37800 ASSY,PWB,CRT F3SS 1AA0B10H03700 OUT OF CIRCUIT-F7KTS OUT OF CIRCUIT-F7KTS (SAME AS F7KTV EXCEPT FOR THE FOLLOWING...
- Page 24 Sanyo Industries (UK) Ltd Printed in UK...
- Page 25 "OFF". Il voltaggio puo variare I suddetti componenti devono essere specified on the part service manual colour bar and controls adjusted con l'intensita del segnale. CE21D4-C-01 sostituti esclusivamente con quelli indi- SERVICE REF.NO. be used for components replacement for normal picture. Waveforms 7.
- Page 26 Main Board /Pannello Principal Circuit side/Lato del Circuito...
- Page 27 CRT Board /Pannello Cinescopio J1EK1745- K1002 :J11B0490N Component Location/Lato del Componente 64 µ s 64 µ s 90Vp-p 100Vp-p ASSY,CRT EB4 STEREO MK2 1AA0B10H03500 L2601 Q701 L1022 R704 L2C1 2SJ12K Z21B0040N 2SC2688'1' B-OUT 331KN SP901 (K:L:M) 134.3V A10B00400 :2SC2621 L1023 L1024 L1025 L1026...
- Page 28 Main Board /Pannello Principal Component Location/Lato del Componente GENERAL BLOCK DIAGRAM FOR EB4 CHASSIS Audio- Video- Audio- SW1901 SW1902 SW1904 SW1903 input-R input-L Headphones Prog.+ Prog.- input Vol.- Vol.+ IC801 Audio In Video In 21P Scart: AV1 21P Scart: AV2 RC Pre.amp Control Keys Audio I/O...
- Page 29 3D surround Board /Pannello 3D surround Circuit side/Lato del Circuito Audio Board /Pannello Audio Circuit side/Lato del Circuito C3842 C3842 C3842 Part No. SKP20226 F7KTV (SHEET 3/3)
- Page 30 K35D J10EA030N FROM K12D...