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Part No.     SKSM0210         F3SEV        JULY 1997

Colour Television
Service Manual

Model  C28ER57

(W.Europe)

Service Ref. No. C28ER57-01

PRODUCT CODE:  1113 27204
ORIGINAL VERSION: Chassis No. EB4-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

Specifications
Power source  

AC 220~240V 50Hz

Television system   

System B/G

Colour system   

PAL

Receiving channel   

VHF: E2-E12
CATV: X, Y, Z, S1-S41
UHF: #21~69

Aerial input impedance 

75ohm

AV terminal

21 Pin socket

CENELEC standard

Sound output(Music)   

12 watts X2

Picture tube 

70cm diagonal, 110 degree

(Visible picture diagonal)

66cm

Dimensions (WxHxD)  

736 x 596 x 500mm

Weight   

32 Kg

28D2

Summary of Contents for 28dn2

Page 1: ... foreign countries where the television transmission system and power source differ from the design specifications Refer to the specifications for the design specifications Specifications Power source AC 220 240V 50Hz Television system System B G Colour system PAL Receiving channel VHF E2 E12 CATV X Y Z S1 S41 UHF 21 69 Aerial input impedance 75ohm AV terminal 21 Pin socket CENELEC standard Sound ...

Page 2: ... a receiver Components indicated by mark in the parts list and the schematic diagram designate components in which safety can be of special significance It is particularly recommended that only parts designated on the parts list in this manual be used for component replacement designated by mark No deviations from resistance wattage or voltage ratings may be made for replacement items designated b...

Page 3: ... 2 Bright 3 Contranst 4 Colour 5 Sharpness Control Keys 10 VL VH U IF TU 1 16 45 46 28 29 30 31 41 48 37 18 19 20 7 13 15 21 22 23 24 X131 SAW Filter IC271 1H Delay R Y B Y R Y B Y CVBS In Functuin In AV1 AV2 11 12 14 16 B G R BLK External CVBS in Internal CVBS in Q151 Q152 Q154 H Drive Q431 Q432 H Outpit V Drive V Feedback Audio In Speakers VR501 C512 H V HV Q2601 Q2611 Q2621 Video In Audio In L ...

Page 4: ...pin13 or pin15 is separated to luminance Y signal and chroma signal in IC201 These pins are used in common with H V sync separation input The peaking of Y signal is adjusted by DC voltage of pin14 SHARPNESS control The chroma signal is divided into R Y and B Y chroma signals demodulated in IC201 and output from pin30 R Y and pin31 B Y These chroma signals pass through the 1H delay line circuit IC2...

Page 5: ...f Q462 to compensate for width variations due to variations in the beam current 7 CPU System and Teletext Control Pin description Pin1 Tuning voltage output Pin2 Brightness control output 6 bit DAC Pin3 Contrast control output 6 bit DAC Pin4 Colour control output 6 bit DAC Pin5 Sharpness control output 6 bit DAC Pin6 Not used GND Pin7 Not used GND Pin8 Power ON OFF output H ON Pin9 AFT signal inpu...

Page 6: ...361 H Centre VR131 AGC T101 T102 VC141 T141 IC810 Band SW Audio Board SIF Board A101 Tuner IC1202 Int Ext SW IC1201 AV2 SW TP E TP D IC802 Memory IC801 CPU IC001 Audio output Video input Audio input R Headphones Audio input L B1 POWER SUPPLY ADJ TU AGC ADJ AFT ADJ GREY SCALE ADJ FOCUS ADJ MAIN BOARD HIGH VOLTAGE H WIDTH ADJ V CENTRE ADJ H CENTRE ADJ V SIZE ADJ Q641 Q621 Q601 Q611 VR611 R BIAS VR62...

Page 7: ...rog on the TV front panel Press the Function button on the Remote control until SCREEN is highlighted This sets up a horizontal scanning line 6 Set screen VR so that one colour is just visible BIAS VR ADJUSTMENT 7 By using VR2601 VR2611 or VR2621 adjust the line until it becomes white 8 Set screen mode OFF by pressing the Recall button on the Remote control DRIVE VR ADJUSTMENT 9 Using VR2602 and V...

Page 8: ... b 10kΩ Input probe Output probe SIF alignment DC 12V AGC voltage Output probe Input probe Sweep ATT Marker Frequency SETTING IC3801 pin11 IC3801 pin3 IC3801 pin1 Side b IC3801 pin12 10dB 38 9MHz Adjustment 1 Adjust AGC voltage to be A 0 5Vp p 2 By using T3801 adjust P to be equal centre line Waveform Oscilloscope Input sound signal source TV system Deviation Mode SETTING IC3401 pin5 System B G 27...

Page 9: ...appears on the screen 2 Select the desired service item by using the Function button on the remote control handset 3 Change the data by using the Level or button 4 To return to TV mode press the Recall button on the remote control handset Service mode description K1 K2 For adjustment of stereo separation ST ID Mode setting for A2 stereo judgement 000 Fast mode 001 Normal mode 002 Fast normal mode ...

Page 10: ...SHEET F3SCM 7 610 253 2449 HOLDER AC CORD GBR D4VA 8 645 003 9256 BADGE SANYO 46 2X13 5L45 9 610 104 2505 LATCH PUSH 7 9X6 9BK 10 610 210 7302 COIL SPRING D8HA ACCESSORIES 11 JXZB RC TRANSMITTER 12 SKP10079 INST MANUAL GB D F NL GR SKP10080 INST MANUAL DK SF FI P I Item Part No Description Note Parts order must contain Service Ref No Part No and descriptions 1 2 3 4 5 6 7 8 9 0 P F TV i A B P P X ...

Page 11: ...significance to product safety It is particularly recommended that only parts specified on the following parts list be used for components replacement pointed out by the mark Note Parts order must contain Service Ref No Part No and descriptions Read description in the Capacitor and Resistor as follows CAPACITOR CERAMIC 100P K 50V Rated Voltage Tolerance Symbols Less than 10PF A Not specified B 0 1...

Page 12: ...332 S Q432 405 095 0209 TR 2SD1556 3E Q461 405 064 7307 TR 2SB1274 Q RA 405 064 7406 TR 2SB1274 R RA 405 064 7505 TR 2SB1274 S RA 405 139 1100 TR 2SB1565 D RA 405 139 1209 TR 2SB1565 E RA 405 139 1308 TR 2SB1565 F RA Q462 406 007 2106 TR JC546A 406 007 2007 TR JC546B 405 019 1909 TR 2SC536 E NP 405 019 2708 TR 2SC536 F NP 405 019 3804 TR 2SC536 G NP Q501 406 007 2106 TR JC546A 406 007 2007 TR JC54...

Page 13: ...02 CERAMIC 1000P K 50V C1107 403 041 8804 ELECT 10U M 16V C1108 403 014 9203 CERAMIC 180P J 50V C1109 403 008 7406 CERAMIC 10P D 50V C114 401 037 5004 MT GLAZE 0 000 ZA 1 10W C117 401 037 5004 MT GLAZE 0 000 ZA 1 10W C120 403 069 9500 CERAMIC 0 01U Z 50V C1201 403 041 8804 ELECT 10U M 16V C1202 403 041 8804 ELECT 10U M 16V C1203 403 069 8305 CERAMIC 0 01U Z 50V C1205 403 609 5718 CERAMIC 100P J 50...

Page 14: ...C645 403 158 1309 ELECT 2200U M 35V C651 403 148 0305 ELECT 470U M 16V C652 403 069 9500 CERAMIC 0 01U Z 50V C653 403 043 9106 ELECT 47U M 16V C655 403 126 4400 ELECT 100U M 10V C661 403 051 0607 ELECT 4 7U M 50V C681 403 190 4702 ELECT 1000U M 25V C682 403 069 9500 CERAMIC 0 01U Z 50V C683 403 147 9606 ELECT 1000U M 10V C684 403 050 6600 ELECT 3 3U M 50V C802 403 270 2901 MT POLYEST 0 1U K 63V 40...

Page 15: ...0W R1924 401 027 5502 CARBON 6 8K JA 1 6W R2001 401 038 2200 MT GLAZE 27K JA 1 10W R2002 401 037 5608 MT GLAZE 10K JA 1 10W R2004 401 037 7800 MT GLAZE 150 JA 1 10W R2005 401 026 7002 CARBON 3 9K JA 1 6W R201 401 038 6505 MT GLAZE 47K JA 1 10W R202 401 037 5707 MT GLAZE 100K JA 1 10W R203 401 024 6720 CARBON 100 JA 1 6W R204 401 024 6720 CARBON 100 JA 1 6W R205 401 024 6720 CARBON 100 JA 1 6W R206...

Page 16: ... 10W R864 401 038 7611 MT GLAZE 560 JA 1 10W R865 401 038 0711 MT GLAZE 2 2K JA 1 10W R866 401 038 0711 MT GLAZE 2 2K JA 1 10W R867 401 038 0711 MT GLAZE 2 2K JA 1 10W R868 401 037 6704 MT GLAZE 1 2K JA 1 10W R869 401 038 2200 MT GLAZE 27K JA 1 10W R870 401 025 8208 CARBON 22K JA 1 6W R871 401 038 6406 MT GLAZE 4 7K JA 1 10W R872 401 038 3702 MT GLAZE 33K JA 1 10W R873 401 038 6406 MT GLAZE 4 7K J...

Page 17: ...07 ZENER DIODE MTZ9 1B 407 057 9602 ZENER DIODE RD9 1EB1 407 057 9701 ZENER DIODE RD9 1EB2 407 163 9909 ZENER DIODE UZ 9 1BCA 407 162 2703 ZENER DIODE UZ 9 1BCB D432 407 005 7308 DIODE EM01Z D438 407 095 8001 DIODE ERD07 15L D439 407 006 4108 DIODE ERB44 04 D442 407 005 4505 DIODE DS442X 407 013 1008 DIODE 1S1553 407 013 4306 DIODE 1S2076A 407 013 6508 DIODE 1S2471 D445 407 012 4406 DIODE 1SS133 4...

Page 18: ... 2 2U M 50V C3814 403 049 9803 ELECT 2 2U M 50V C3815 403 049 9803 ELECT 2 2U M 50V RESISTOR R3802 401 037 5202 MT GLAZE 100 JA 1 10W R3803 401 037 5608 MT GLAZE 10K JA 1 10W R3804 401 037 9200 MT GLAZE 1 8K JA 1 10W R3805 401 038 3504 MT GLAZE 330 JA 1 10W R3806 401 038 7502 MT GLAZE 56 JA 1 10W R3811 401 038 7601 MT GLAZE 560 JA 1 10W R3814 401 038 7601 MT GLAZE 560 JA 1 10W R3815 401 038 2200 M...

Page 19: ...P K 50V C2611 403 074 5702 CERAMIC 560P K 50V C2621 403 074 5702 CERAMIC 560P K 50V C2631 403 077 2708 CERAMIC 1000P P 2K C2635 403 055 8401 ELECT 22U M 250V 403 260 0405 ELECT 22U M 250V C2651 403 201 5001 ELECT 330U M 16V RESISTOR R2601 401 018 2800 CARBON 330 JA 1 4W R2602 401 019 1901 CARBON 3 9K JA 1 4W R2603 401 012 5708 CARBON 1K JA 1 4W R2604 401 065 4604 OXIDE MT 12K JA 2W R2605 401 009 6...

Page 20: ...Ref No Part No Description Ref No Part No Description 20 ...

Page 21: ...3 R1054 R1051 R1055 Q1004 Q1005 C1008 C1004 C103A C1109 L1103 C1108 R1200 D1201 R354 D352 R1900 D655 R894 R893 C106A R898 R897 C892 L901 W901 KE KF KK 1000BA KK 1000BA RD5 1EB3 UZ 5 1BCC MTZ5 1C 16EM10 J1 1 10GJ 4 7K TDA8361 N5 25KZ0 1FA KZ0 1FA 25KZ0 1FA KZ0 1FA KK4700BA 63GK0 1V HJ0 1G 1 10GJ 100K KZ 0 01FA 25KZ0 1FA KZ0 1FA 1 10GJ 100 KK2700 BA KK4700 BA 63GK0 047V HJ0 047G 63GK0 1V HJ0 1G KK10...

Page 22: ...3401 K12B PB002 R1256 1 10 GJ82K HD14052BP MN4052B TC4052BP UPD4052BC 2SC2812L6 BC848B 1 10GJ 2 2K 2SC2812L6 BC848B Q3484 2SC2812L6 BC848B Q3482 2SC2812L6 BC848B 1 10 GJ2 2K 1 10 GJ470 1 10 GJ82K 1 10 GJ82K 1 10 GJ82K R1263 1 10 GJ82K 1 10 GJ82K 1 10 GJ2 7K 1 10 GJ6 8K 16EM 10 J10EA020N TDA9840 V2 TDA8424 L21B0120N 25CG 3300CA 16EM10 EM2 2 EM2 2 16EM 100 KK0 01BA 25KZ0 1FA KZ0 1FA 1 10 GJ100 1 10 ...

Page 23: ... F2RC 1AA0B10E24500 B DRIVE B OUT B BIAS R OUT R BIAS R DRIVE G BIAS G OUT CRT SOCKET B 1K B 1K B 4 7K B 4 7K B 4 7K 5 7 R B G C501 IC501 D501 C505 C441 R432 Q431 R433 C433 C432 C434 Q432 R224 D222 R223 C511 C512 C222 C503 C513 R507 R506 R508 D502 R501 R225 R226 C226 D431 R436 D221 IC271 C273 R232 Q201 R217 C136 C206 C207 C208 C215 C233 C137 C135 C142 R150 R152 X151 L151 C231 KP C212 Q501 R504 C51...

Page 24: ...NE VR DEL DRIVE ECCITAZIONE 9 Servendosi di VR601 e VR611 regolare il bilanciamento del bianco REGOLAZIONE DI ALTO VOLTAGGIO E DI AMPIEZZA REGOLAZIONE DI ALTO VOLTAGGIO 1 Sintonizzare il ricevitore sull oscillogramma circolare PAL 2 Regolare i comandi di luminosità e contrasto sui livelli massimi 3 Collegare il misuratore V digitale su entrambi i terminali di R224 lato sinistro e il misuratore di ...

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