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Colour Television

TX-28MK1P/M

TX-21MK1P/M

EURO-4 Chassis

SPECIFICATIONS

(Information in brackets {} refers to model TX-21MK1P/M)
Power Source:

220-240V a.c., 50Hz

Power Consumption:

130W {115W}

Stand-by Power
Consumption:

1,8W

Aerial Impedance:

75

 unbalanced, Coaxial Type

Receiving System:

PAL B/G, H, D/K, PAL-525/60
SECAM B/G, D/K
M.NTSC
NTSC (AV only)

Receiving Channels:
VHF E2-E12

VHF H1-H2 (ITALY)

VHF A-H (ITALY)

VHF R1-R2

VHF R3-R5

VHF R6-R12

UHF E21-E69

CATV (S01-S05)

CATV S1-S10 (M1-M10)

CATV S11-S20 (U1-U10)

CATV S21-S41 (HYPERBAND)

Intermediate Frequency:
Video/Audio
Video

38,9MHz

Audio

33,16MHz, 33,4MHz
32,4MHz (A2 Stereo)
33,05MHz (NICAM)
32,66MHz, 32,4MHz (Czech Stereo)

Colour

34,47MHz (PAL)
34,5MHz, 34,65MHz (SECAM)

Terminals:
AUDIO MONITOR OUT

Audio (RCAx2) 500mV rms 1k

AV1 IN

Video (21 pin) 1V p-p 75

Audio (21 pin) 500mV rms 10k

RGB (21 pin)

AV1 OUT

Video (21 pin) 1V p-p 75

Audio (21 pin) 500mV rms 1k

AV2 IN

Video (21 pin) 

1V p-p 75

Audio (21 pin) 

500mV rms 10k

S-Video IN

Y: 1V p-p 75

(21-pin)

C:0,3V p-p 75

AV2 OUT

Video (21 pin) 

1V p-p 75

Audio (21 pin)

500mV rms 1k

Selectable output (21 pin)

AV3 IN

Audio (RCAx2)

500mV rms 10k

Video (RCAx1)

1V p-p 75

High Voltage:

28,2kV 

±

1kV

{28kV 

±

1kV}

Picture Tube:

A66ECF50X42

66cm

{A51EER35X70

51cm}

Audio Output:

2 x 15W (Music Power)
8

 Impedance

Headphones:

8

 Impedance

3,5 mm

Accessories
supplied :

Remote Control
2 x R6 (UM3) Batteries

Dimensions:
Height:

580mm

{481mm}

Width:

666mm

{525mm}

Depth:

472mm

{477mm}

Net weight:

31kg

{22kg}

Specifications are subject to change without notice.
Weights and dimensions shown are approximate.

NOTE:    This Service Manual should be used in conjunction with
the EURO-4 Technical guide.

ORDER No. SM-99042

Summary of Contents for TX-28MK1P/M

Page 1: ...IO MONITOR OUT Audio RCAx2 500mV rms 1k AV1 IN Video 21 pin 1V p p 75 Audio 21 pin 500mV rms 10k RGB 21 pin AV1 OUT Video 21 pin 1V p p 75 Audio 21 pin 500mV rms 1k AV2 IN Video 21 pin 1V p p 75 Audio...

Page 2: ...such as screw heads aerials connectors control shafts etc When the exposed metallic part has a return path to the chassis the reading should be between 4M ohm and 20M ohm When the exposed metal does n...

Page 3: ...SERVICE HINTS How to remove the rear cover 1 Remove the 9 screws as shown in Fig 2 LOCATION OF CONTROLS 3 SCREWS Fig 2 E BOARD Y BOARD FOCUS SCREEN H BOARD Fig 3...

Page 4: ...set at the same time pressing the STATUS button on the remote control To exit Self Check switch off the TV set at the power button If the CCU ports have been checked and found to be incorrect or not l...

Page 5: ...75mV 64 S 64 S 3V H Out IC601 Pin 50 Vert Out IC601 Pin 31 20mS 0 7V 13 S 3 7V SCL IC1201 Pin 3 R Out E8 Pin 5 64 S 4 6V HFLB IC601 Pin 13 64 S 6 2V R Out IC601 Pin 37 64 S 275mV G Out IC601 Pin 38 27...

Page 6: ...l Linearity V Lin 006 Optimum setting Vertical Symmetry V Sym 002 Optimum setting DVCO DVCO 005 Receive a PAL Colour Bar Pattern For DVCO alignment press Blue button wait until the colours are changin...

Page 7: ...Q303 Q301 E8 4 3 5 Q353 Q352 Q351 CRT 3 2 1 7 8 9 Y2 4 3 5 IC351 Q104 5HG OXH UHHQ 9LGHR Q 9 9LGHR 2XW G OUT 38 R OUT 37 G IN 46 R IN 45 Q304 Q302 Q354 7 7 VM COILS Q905 Q907 Q909 Q908 Q906 SVM OUT 34...

Page 8: ...R 7 6 R 1 R OUT 3 L OUT 1 R OUT 3 L OUT 2 R IN 6 L IN 2 R IN 6 L IN 47 ANA_IN1 DACM_L 25 SC3_IN_R 38 SC1_IN_R 42 SC1_IN_L 41 SC2_OUT_R 27 SC2_OUT_L 28 SC2_IN_R 40 SC2_IN_L 39 Q252 Q251 2 L L 11 4 L H...

Page 9: ...SCL 1 SCL SDA 48 49 8 7 4 5 IC3401 71 LOCAL KEYS SWITCH MATRIX 60 52 74 IC1051 81 AV2 8 10 AV1 8 10 12 75 51 72 73 AV LINK SLOW 2 SLOW 1 SCL 1 SDA 1 59 58 55 VPROT KEYSCAN ON OFF R C L E D PROT 1 SLOW...

Page 10: ...1 3 1 S4 B1 P2 P1 S5 S2 S7 10 9 6 8 5 6 2 6 3 1 6 12V 200V 33V 14V 14V 27V 150V 29V 7V 15V 5V D867 Q852 Q854 Q855 1 D805 R805 R814 IC850 1 2 D862 R854 33V 16 REMOTE CONTROL RECEIVER RESET MICRO PROCES...

Page 11: ...PARTS LOCATION 11 NOTE The numbers on the exploded view below refer to the mechanical section of the Replacement Parts List 20 21 16 15 13 14 4 19 5 9 3 18 12 17 6 1 7 2 8 11 10...

Page 12: ...IC801 STRF6654LF51 12V REGULATOR IC851 L78M12MRB 8V REGULATOR IC853 AN78L08TA LED RECEIVER IC1051 RPM6937 V4 MICRO PROCESSOR IC1101 SDA5450C47 EPROM IC1102 27C2001 G09 RESET IC1104 MN1381 R TA RESET...

Page 13: ...TOR Q1052 BC847B TRANSISTOR Q1101 BC847B TRANSISTOR Q1104 BC847B TRANSISTOR Q1105 BC847B TRANSISTOR Q1106 BC847B TRANSISTOR Q1107 BC847B TRANSISTOR Q1108 BC847B TRANSISTOR Q2101 BC857B TRANSISTOR Q210...

Page 14: ...SH001 ERJ6GEY0R00 0 1W 5 0 S M CARB R101 ERJ6GEY0R00 0 1W 5 0 S M CARB R102 ERJ6GEYJ103 0 1W 5 10K S M CARB R103 ERJ6GEYJ222 0 1W 5 2K2 S M CARB R104 ERJ6GEYJ332 0 1W 5 3K3 S M CARB R105 ERJ6GEYJ101 0...

Page 15: ...5 10 CARBON R807 ERD25TJ332 0 25W 5 3K3 CARBON R809 ERD25TJ681 0 25W 5 680 WOUND R811 ERW2PKR33 2W 20 R33 CARBON R812 ERD75TAJ825 0 75W 5 8M2 WOUND R813 ERF7ZK2R7 7W 20 2R7 CARBON R814 ERD25TJ473 0 25...

Page 16: ...2 ERJ6GEYJ103 0 1W 5 10K S M CARB R3001 ERJ6GEYJ101 0 1W 5 100 S M CARB R3002 ERJ6GEYJ471 0 1W 5 470 S M CARB R3003 ERJ6GEYJ101 0 1W 5 100 S M CARB R3004 ERJ6GEYJ153 0 1W 5 15K S M CARB R3005 ERJ6GEYJ...

Page 17: ...CAP C601 ECUV1H104KBX 50V 100nF ELECT C602 ECA1HM101GB 50V 100 F S M CAP C603 ECUV1H102JCX 50V 1nF ELECT C604 ECJ2VF1H223Z 350V 22nF ELECT C605 ECA1HM101GB 50V 100 F ELECT C606 ECA1HM3R3GB 50V 3 3 F E...

Page 18: ...H010CCX 50V 1pF S M CAP C2128 ECUV1H010CCX 50V 1pF ELECT C2129 ECA1CM102B 16V 1pF ELECT C2130 ECA1CM331B 16V 330 F S M CAP C2131 ECUV1H103ZFX 50V 10nF S M CAP C2132 ECUV1H103ZFX 50V 10nF S M CAP C2134...

Page 19: ...22 WOUND R810 ERW2PKR33 2W 20 R33 CAPACITORS S M CAP C364 ECUV1H103ZFX 50V 10nF ELECT C365 ECA1CM100GB 16V 10 F CERAMIC C551 ECKC3D271JB 2KV 10 F FILM C555 ECWH15H822JN 1500V 8 2nF FILM C556 ECQF4123J...

Page 20: ...71 0 25W 5 470 CARBON R928 ERD25TJ5R6 0 25W 5 5R6 CARBON R929 ERDS1FJ471 0 5W 5 470 CARBON R930 ERD25TJ5R6 0 25W 5 5R6 CARBON R931 ERDS1FJ390 0 5W 5 39 FUSIBLE R935 ERQ14AJW3R9 0 25W 5 3R9 FUSIBLE R93...

Page 21: ...inting and are subject to change without notice REMARKS a Do not touch the hot part or the hot and cold parts at the same time as you are liable to a shock hazard b Do not short circuit the hot and co...

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Page 27: ...F7 Q856 F9 D865 I9 IC1104 C9 Q855 J5 D864 I10 IC1103 F8 Q854 B4 D863 G9 IC1102 D10 Q853 B4 D862 N10 IC1101 D8 Q852 B5 D861 J9 IC1051 A10 Q850 F5 D860 I10 IC853 J9 Q701 J5 D859 H5 IC852 I10 Q552 N3 D8...

Page 28: ...A7 Q353 G6 Q352 F6 Q351 F6 DIODES D906 F1 D905 G4 D904 D3 D902 G4 D901 G3 D364 C9 D363 C8 D362 B9 D361 B7 D360 D8 D359 G6 D358 E7 D357 F7 D356 G7 D355 F7 D354 G7 TEST POINTS TPY6 B8 TPY5 D5 TPY4 E5 T...

Page 29: ...G5 D355 F6 D356 G5 D357 G5 D358 F5 D359 G5 D360 C6 D361 B6 D362 D7 D363 D7 D364 D7 TEST POINTS PY1 E4 PY2 F5 PY3 F4 PY4 E3 PY5 D3 PY6 B6 TRANSISTORS Q351 G4 Q352 F4 Q353 G4 Q354 C7 I C S IC351 E6 29...

Page 30: ...H BOARD TNP8EH002 TRANSISTORS Q3401 C3 Q3402 A2 I C S IC3401 C2 30 1 2 3 A C B...

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