Panasonic TX-28PN1D Service Manual Download Page 1

Service Manual

Colour Television

TX-29PN1D, TX-29PN1F,

TX-29PN1P,

TX-28PN1D, TX-28PN1F,

TX-28PN1P,

GP4L Chassis

SPECIFICATIONS

(Information in brackets [ ] refers to models 28”)

Power Source:

220-240V a.c., 50Hz

Power Consumption:

68W  [65W]

Stand-by Power
Consumption:

1W  

Aerial Impedance:

75

 unbalanced, Coaxial Type

Receiving System:

PAL-I, B/G, D/K, PAL-525/60
SECAM B/G, D/K, L/L’
M.NTSC (AV only)
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, 33,9MHz

Sound

33,4MHz (B/G), 33,16MHz (A2)
33,05MHz (NICAM B/G,D/K,L)
32,4MHz (D/K),32,66MHz (CZ STEREO)
40,4MHz (L’), 39,75MHz (L’NICAM) 

Colour

34,47MHz (PAL)
34,5MHz, 34,65MHz (SECAM)
38,3MHz, 38,15MHz (SECAM L’)

Terminals:

AV1 IN

Video (21 pin)

1V p-p 75

Audio (21 pin)

500mV rms 10k

RGB (21 pin)

0,7V p-p 75

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

AV3 IN

Audio (RCAx2)

500mV rms 10k

Video (RCAx1)

1V p-p 75

High Voltage:

31kV ± 1kV  

Picture Tube:

A68EPD10X30

68cm

[W66MAF185X03 66cm]

Audio Output:

2x5W RMS, 2x10W MPO, 
8

 impedance

Headphones:

8

 Impedance

Accessories 
supplied :

Remote Control
2 x R6 (UM3) Batteries

Dimensions:

Height:

584mm

[528mm]

Width:

668mm

[698mm]

Depth:

500mm

[490mm]

Net weight:

40kg

[35,5kg]

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

ORDER No. PCZ0504048C2

Summary of Contents for TX-28PN1D

Page 1: ...66MHz CZ STEREO 40 4MHz L 39 75MHz L NICAM Colour 34 47MHz PAL 34 5MHz 34 65MHz SECAM 38 3MHz 38 15MHz SECAM L Terminals AV1 IN Video 21 pin 1V p p 75Ω Audio 21 pin 500mV rms 10kΩ RGB 21 pin 0 7V p p 75Ω AV1 OUT Video 21 pin 1V p p 75Ω Audio 21 pin 500mV rms 1kΩ AV2 IN Video 21 pin 1V p p 75Ω Audio 21 pin 500mV rms 10kΩ S Video IN Y 1V p p 75Ω 21 pin C 0 3V p p 75Ω AV2 OUT Video 21 pin 1V p p 75Ω ...

Page 2: ...t on the receiver 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 not have a return path to the chassis the reading must be infinite LEAKAGE CURRENT HOT CHECK 1 Plug the a c cord directly into the a c outlet Do not use an isolation transformer for t...

Page 3: ...SERVICE HINTS How to remove the rear cover 1 Remove the 10 screws as shown in Fig 2 LOCATION OF CONTROLS L Board Focus Screen D Board Fig 3 3 Fig 2 SCREWS SCREWS ...

Page 4: ...heck is used to automatically check the bus lines and hexadecimal code of the TV set To enter Self Check mode press the STATUS button on the remote control and at the same time press the down v button on the customer controls at the front the TV set 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 located then will app...

Page 5: ...WAVEFORM PATTERN TABLE 5 CONDITIONS Contrast MAX Brightness MID Colour MID Sharpness MID R G B IC601 Receive a window pattern ...

Page 6: ...tion Note All setting values are approximate Settings Special features EAROM copy TV EXT FLASH program copy EXT TV Horizontal Position H Pos 4 Optimum setting Vertical Position V Pos 0 Optimum setting Horizontal Amplitude H Amp 93 Optimum setting Vert Amplitude V Amp 15 Optimum setting EW amplitude EW Amp 1 30 Optimum setting Lower Corner Lower Corner 11 Optimum setting Trapezium comp Trapez 1 4 O...

Page 7: ...303 Q306 Q305 Q304 Q307 Q308 Q309 4 1 3 D6 IC601 16 IF1 MICROPROCESSOR VCT4973FPZF1 17 IF2 71 BOUT 72 GOUT 73 ROUT 4 SPEAKL 5 SPEAKR AV2_OR 9 AV2_OL 8 AV3_IL 10 AV3_V 38 AV2_OUT 41 AV2_C 34 AV2_CVBS 35 AV12_IR 13 AV3_IR 11 82 SENSE AV12_IL 12 AV1_CVBS 33 AV1_OUT 40 G_IN 31 R_IN 32 B_IN 30 AV1_OL 6 AV1_OR 7 60 H OUT 61 HFLB 83 EW 85 V 84 V 59 VPROT IC451 VERTICAL 6 1 5 7 D601 VFLB Q701 Q703 Q702 T5...

Page 8: ... 6V 142V R890 33V 3 3V_SBY RS RM1062 VCC R003 D801 D802 R822 R823 D803 R801 IC870 REG 1 3 5 IC850 REG 1 2 D852 8V IC601 VCT4973FPZF1 2 8V 19 20 87 5V_DEF 21 64 68 3 3V 24 43 1 8V_SBY 46 65 3 3V_SBY AUDIO OUTPUT IC2301 7 15V 5 5V 3 3V_SBY 3 3V_SBY IC1103 8 EAROM IC603 2 RESET IC2401 14 AUDIO SWITCH 8V 2 D7 SERVICE POWER BUS IC801 POWER SUPPLY 4 3 6 1 PC841 D825 R825 CF830 350V D854 D853 IC860 REG 1...

Page 9: ... VPROT 59 FBIN 29 RM REMOTE RM1062 RL801 LED D1061 SCL 6 IC1103 EAROM SDA 5 TUNER 5 SDA 4 SCL 1 AGC 8 SLOW2 Q603 SERVICE TEST 5 6 D7 7 8 RM SDA SCL KEYSCAN LOCAL KEYS SWITCHING MATRIX Q1062 Q895 SCL 57 SDA 58 1 VOUT IC603 RESET IC850 PQ1CG21H2RZH 5 Q861 POWER SUPPLY Q2102 D2108 6 MUTE IC2301 LA42072 E D601 D BOARD AV2 21 PIN SCART AV1 21 PIN SCART 8 SLOW1 16 FBIN ...

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

Page 11: ...062 KSM 602LM2EL FUSES FUSE F840 K5D502BNA005 FS LINK F841 TSF19632 DIODES THERMISTOR CF830 59890T60B110 DIODE D351 1N4148 34 DIODE D352 1N4148 34 DIODE D353 1N4148 34 DIODE D354 1N4148 34 DIODE D357 1N4148 34 DIODE D358 1N4148 34 DIODE D359 1N4148 34 DIODE D360 EU02 DIODE D361 EU02 DIODE D362 EU02 DIODE D402 1SR124 4AT82 DIODE D501 1SR124 4AT82 DIODE D506 1SR124 4AT82 DIODE D507 1N4148 34 DIODE D...

Page 12: ...35VB100K COIL L005 EXCELSA35T COIL L108 ELJFAR68KF2 COIL L300 EXCELDR35V COIL L301 TLTACT4R7K COIL L553 ELC16B821L COIL L555 ELC10D821E COIL L556 ELC08D682E COIL L601 G0C100JA0055 COIL L602 G0C100JA0055 COIL L603 G0C100JA0055 COIL L604 G0C100JA0055 COIL L605 EXCELDR35V COIL L606 G0C100JA0055 COIL L607 EXCELDR25V COIL L608 G0C100JA0055 COIL L609 G0C100JA0055 COIL L610 EXCELSA35T COIL L611 G0C100JA0...

Page 13: ...R376 ERJ6GEYJ183 0 1W 5 18K Ω S M CARB R403 ERJ6GEYJ563 0 1W 5 56K Ω S M CARB R405 ERJ6GEYJ563 0 1W 5 56K Ω METAL R406 ERX12SJR82P 0 5W 5 R82 Ω METAL R416 ERX2SJSR82H 2W 5 0 82 Ω S M CARB R451 ERJ6GEYJ223 0 1W 5 22K Ω S M CARB R453 ERJ6GEYJ103 0 1W 5 10K Ω METAL R505 ERG1SJ222E 0 5W 5 2K2 Ω S M CARB R507 ERJ6GEYJ561 0 1W 5 560 Ω S M CARB R512 ERJ6ENF1001 0 1W 1 1K Ω S M CARB R513 ERJ6GEYJ680 0 1W ...

Page 14: ...2 0 1W 5 4K7 Ω S M CARB R1202 ERJ6GEYJ472 0 1W 5 4K7 Ω S M CARB R1228 ERJ6GEYJ220 0 1W 5 22 Ω S M CARB R1229 ERJ6GEYJ220 0 1W 5 22 Ω S M CARB R2110 ERJ6GEY0R00 0 1W 0 Ω S M CARB R2111 ERJ6GEYJ221 0 1W 5 220 Ω S M CARB R2112 ERJ6GEYJ102 0 1W 5 1K Ω S M CARB R2114 ERJ6GEYJ103 0 1W 5 10K Ω S M CARB R2115 ERJ6GEYJ222 0 1W 5 2K2 Ω CARBON R2116 ERD25TJ102 0 25W 5 1K Ω SMD R2325 ERJ6GEYJ2R2V 125W 5 2R2 Ω...

Page 15: ...ECT C654 F2A1C101A180 16V 100µF ELECT C655 ECA1CM221GB 16V 220µF S M CAP C661 ECJ2VC1H102J 50V 1nF S M CAP C662 ECJ2VC1H102J 50V 1nF ELECT C663 F2A1H3R3A182 50V 3 3µF S M CAP C664 ECUV1H104KBX 50V 100nF ELECT C665 F2A1C470A180 16V 47µF ELECT C666 F2A1C470A180 16V 47µF ELECT C667 F2A1C470A180 16V 47µF ELECT C668 F2A1C470A180 16V 47µF CERAMIC C704 F1B2H392A015 500V 3 9nF CERAMIC C806 ECKWBE472ZER 25...

Page 16: ...JB16673 CRT SOCKET SC351 0330550049 SWITCHES SWITCH SW840 ESB92S11B SWITCH SW1011 EVQ11G05R SWITCH SW1012 EVQ11G05R SWITCH SW1013 EVQ11G05R SWITCH SW1014 EVQ11G05R SWITCH SW1015 EVQ11G05R RELAYS RELAY RL801 8 1419125 3 DIFFERENCES FOR MODEL TX 28PN1D EXPLODED VIEW AC CORD ASSY 13 TXASX01ABLE BACK COVER 14 TKU0E0140 C R T 15 W66MAF185X03 CABINET 16 TKY0E0151 D P C B 17 D 28PN1D DEGAUSS COIL 18 TLK0...

Page 17: ...APACITORS FILM C553 ECWF2155JSB 250V 1 5µF FILM C554 ECWF2334JSB 250V 330nF FILM C559 ECWH16622JVB 1 6KV 6 2nF FILM C560 ECQF4273JZH 400V 27nF FILM C569 ECWH16472JVB 1600V 4 7nF CERAMIC C821 ECKC3D681J 2KV 680pF DIFFERENCES FOR MODEL TX 29PN1D EXPLODED VIEW AC CORD ASSY 13 TXASX01AAXE BACK COVER 14 TKU0E0141 C R T 15 A68EPD10X30 CABINET 16 TKY0E0152 D P C B 17 D 29PN1D DEGAUSS COIL 18 TLK8E05210 M...

Page 18: ...3 TXASX01AAXE BACK COVER 14 TKU0E0141 C R T 15 A68EPD10X30 CABINET 16 TKY0E0152 D P C B 17 D 29PN1P DEGAUSS COIL 18 TLK8E05210 MODEL LABEL 19 TBM0E0426 MISCELLANEOUS COMPONENTS CARTON TPC0E45301 BOTTOM CUSHION TPD0E0068 TOP CUSHION TPD0E0069 INSTRUCTION BOOKS BULGARIAN TQB0E0153M M ROMANIAN TQB0E0153N M POLISH TQB0E0153P M HUNGARIAN TQB0E0153Q M CZECH TQB0E0153R M ENGLISH TQB0E0153U M SLOVAKIAN TQ...

Page 19: ...latest at time of printing 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 cold circuits as electrical components may be damaged c Do not connect an instrument such as an oscilloscope to the hot and cold circuits simultaneously as this may cause fuse failur...

Page 20: ......

Page 21: ......

Page 22: ... D802 D7 IC870 B5 Q611 A2 D803 E7 Q701 B6 D810 E6 TP S Q702 B5 D817 D6 TPD1 A2 Q703 B5 D820 E6 TPD2 A2 Q841A E4 D823 D6 TPD3 A4 Q850 D2 D824 D6 TPD8 C1 Q861 D4 D825 D6 TPD11 F5 Q880 B4 D840 F5 TPD12 D3 Q881 B4 D841 E5 TPD13 D3 Q882 B4 D842 D5 TPD16 B4 Q893 E4 D843 D4 TPD17 B4 Q895 C5 D844 D5 TPD18 A1 D845 C5 TPD19 D3 DIODES D846 C5 TPD20 B2 D1056 F7 D847 E5 TPD21 E4 D1061 F8 D849 D4 TPD23 C5 D1132...

Page 23: ... F3 Q351 F1 D361 F2 Q352 F2 D362 F3 Q353 F1 Q354 E3 IC S IC351 F2 DIODES D351 E3 TP S D352 E3 TPL1 F1 D353 E3 TPL2 F2 D354 E2 TPL3 F1 D357 F2 TPL4 E3 D358 F2 TPL5 E1 D359 F1 TPL6 F3 L BOARD TNP0EL006 23 1 2 E F 3 ...

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