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Colour Television
Service Manual
Model C21ES57
Service Ref. No. C21ES57-01
PRODUCT CODE: 1113 27004
ORIGINAL VERSION: Chassis No. EB4-A
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
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.
Specifications
Power source
Television system
Colour system
Receiving channel
Aerial input impedance
AV terminal
21 Pin socket
Sound output(Music)
Picture tube
(Visible picture diagonal)
Dimensions (WxHxD)
Weight
Part No.
SKSM0215
F3JEV
(W.Europe)
AC 220~240V 50Hz
System B/G
PAL
VHF: E2-E12
CATV: X, Y, Z, S1-S41
UHF: #21~69
75ohm
CENELEC standard
9 watts X2
55cm diagonal, 90 degree
51cm
610 x 479 x 485 mm
21.5 Kg
SEPT 1997
21D2
Table of Contents
Related Manuals for Sanyo 21D2
Summary of Contents for Sanyo 21D2
- Page 1 Colour Television 21D2 Service Manual Model C21ES57 (W.Europe) Service Ref. No. C21ES57-01 PRODUCT CODE: 1113 27004 ORIGINAL VERSION: Chassis No. EB4-A Note This TV receiver will not work properly in foreign countries where the television transmission system and power source differ from the design specifications.
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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 when certain that all the protective devices are installed a service is performed on the primary of the converter properly, such as, control knobs, adjustment covers or 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. F3JEV... -
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: Horizontal Output
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... -
Page 6: Service Control Adjustment
SERVICE CONTROL ADJUSTMENT B1 POWER SUPPLY ADJ. AFT ADJ. TU-AGC ADJ. MAIN BOARD HIGH VOLTAGE & H-WIDTH ADJ. FOCUS ADJ. V-CENTRE ADJ. V-SIZE ADJ. H-CENTRE ADJ. GREY SCALE ADJ. SIF BOARD SIF ADJ. CRT BOARD IC3811 IC3801 K38H2 K38H1 AUDIO BOARD IC1251 IC3451 IC3401... - Page 7 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 8: 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 9 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.
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Page 10: Cabinet Parts
610 261 7726 DEC CONTROL SHEET-F3SCM 610 253 2449 HOLDER AC CORD-GBR-D4VA 610 261 3032 SPRING-E7GC 645 003 9256 BADGE,SANYO*46.2X13.5L45 610 104 2505 LATCH PUSH,7.9X6.9BK 610 224 5721 SPACER CUSHION-B3MY 412 009 3003 CRT SCREW 6 X 30 411 076 1400... -
Page 11: Chassis Electrical Parts List
Part No. Description Part No. Description Ref. No. Chassis construction Read description in the Capacitor and Resistor as follows: CAPACITOR C21ES57-01 (21D2) CERAMIC 100P K 50V Rated Voltage Tolerance Symbols: ASSY,PWB,MAIN F3JEV 1AA0B10H018J0 (Page 11) Less than 10PF ASSY,PWB,SIF F2RT... - Page 12 Description Ref. No. Part No. Ref. No. Part No. Description 405 019 2708 TR 2SC536-F-NP Q501 406 007 2106 TR JC546A 405 019 3804 TR 2SC536-G-NP 406 007 2007 TR JC546B Q1201 406 007 2106 TR JC546A 405 019 1909 TR 2SC536-E-NP 406 007 2007 TR JC546B...
- Page 13 Ref. No. Part No. Description Part No. Description Ref. No. 409 269 1207 IC L78M12CV C1205 403 609 5718 CERAMIC 100P J 409 366 1803 IC MC78M12CT C121 403 068 0409 CERAMIC 0.1U Z IC652 409 362 7403 IC AN78M08 LB 403 070 2606 CERAMIC 0.1U Z...
- Page 14 Description Ref. No. Part No. Ref. No. Part No. Description C430 403 075 7101 CERAMIC 1000P K 500V C871 403 068 0409 CERAMIC 0.1U Z C432 403 075 7101 CERAMIC 1000P K 500V 403 070 2606 CERAMIC 0.1U Z C433 403 076 3102 CERAMIC 3900P K...
- Page 15 Ref. No. Part No. Description Part No. Description Ref. No. R1055 401 037 5707 MT-GLAZE 100K JA 1/10W R218 401 038 7809 MT-GLAZE 56K JA 1/10W R1056 401 037 6704 MT-GLAZE 1.2K JA 1/10W R223 401 014 6109 CARBON 150K JA 1/4W R108 401 037 5004...
- Page 16 Description Ref. No. Part No. Ref. No. Part No. Description R813 401 026 4605 CARBON 33K JA 1/6W / ! \T451 645 014 2987 TRANS,FLYBACK R815 401 024 6700 CARBON 100 JA 1/6W / ! \T611 645 015 7646 TRANS,POWER,PULSE R816 401 037 5608 MT-GLAZE...
- Page 17 Ref. No. Part No. Description Part No. Description Ref. No. 407 158 3400 ZENER DIODE UZ-11BSC D643 407 166 2303 DIODE ERC91-02L D1901A 407 120 9706 LED LN28RPL D644 407 166 2303 DIODE ERC91-02L D1902 407 063 8309 ZENER DIODE MTZJ11C D645 407 053 7206 ZENER DIODE MTZ6.2C...
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Page 18: Assy,Pwb,Sif F2Rt
Description Ref. No. Part No. Ref. No. Part No. Description C3411 403 069 5601 CERAMIC 0.01U K C3412 403 069 5601 CERAMIC 0.01U K ASSY,PWB,SIF F2RT 1AA0B10E230BA C3421 403 069 9500 CERAMIC 0.01U Z C3422 403 041 8804 ELECT 10U M TRANSISTOR C3431 403 049 0008... - Page 19 Ref. No. Part No. Description Part No. Description Ref. No. C2601 403 074 5702 CERAMIC 560P K C2611 403 074 5702 CERAMIC 560P K C2621 403 074 5702 CERAMIC 560P K C2631 403 077 2708 CERAMIC 1000P P C2635 403 055 8401 ELECT 22U M 250V...
- Page 20 Description Ref. No. Part No. Ref. No. Part No. Description -20-...
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Page 21: Colour Television
Some voltages may vary with gio presi usando un segnale di barre col- lare importanza per il sicuro funziona- ficato altrimenti. 21D2/C21ES57 cance to product safety. It is particu- MODEL NUMBER signal strength. ore sono con tutti i controlli alle loro Il transistore 2SA608(E,F) puo essere mento del TV. - Page 22 Main Board /Pannello Principal Circuit side/Lato del Circuito FRONT-IN K12A J10EA020N K12B J10EA R1251 050N 1/10 GJ2.7K SC2-IN C1251 R1252 1/10 16EM GJ6.8K MONITOR-OUT R1253 Q1251 1/10 GJ82K R1264 2SC2812L6 1/10 :BC848B R1254 GJ82K 1/10 GJ82K Q1252 2SC2812L6 R1263 IC3431 R1257 :BC848B 1/10...
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Page 23
J1EK1745- K1002 :J11B0490N ASSY,PWB,CRT F2RC Waveforms on ICs and Transistors 1AA0B10E24500 L2601 Q2601 L1022 R2604 L2C1 2SC2688'1' 2SJ12K Z21B0040N B-OUT 331KN IC201-pin7 IC201-pin15 IC201-pin18 IC201-pin19 IC201-pin20 SP901 (K:L:M) A10B00400 :2SC2621
L1023 L1024 L1025... - Page 24 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...