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Colour Television

TX-28PL1

EURO- 4 Chassis

SPECIFICATIONS

Power Source:

220-240V a.c., 50Hz

Power Consumption:

90W

Stand-by Power
Consumption:

1,4W

Aerial Impedance:

Ω

unbalanced, Coaxial Type

Receiving System:

PAL I, PAL-525/60
M.NTSC (AV only)
NTSC (AV only)

Receiving Channels:

UHF E21-E68

Intermediate Frequency:
Video/Audio

Video

39,5MHz

Audio

33,5MHz
32,95MHz (NICAM)

Colour

35,07MHz

Terminals:

AUDIO MONITOR OUT

Audio (RCAx2) 500mV rms 1k

Ω

AV1 IN

Video (21 pin) 1V p-p 75

Ω

Audio (21 pin) 500mV rms 10k

Ω

RGB (21 pin)

0,7V p-p 75

Ω

AV1 OUT

Video (21 pin) 1V p-p 75

Ω

Audio (21 pin) 500mV rms 1k

Ω

AV2 IN

Video (21 pin)

1V p-p 75

Ω

Audio (21 pin)

500mV rms 10k

Ω

S-Video IN

Y: 1V p-p 75

Ω

(21-pin)

C:0,3V p-p 75

Ω

AV2 OUT

Video (21 pin)

1V p-p 75

Ω

Audio (21 pin)

500mV rms 1k

Ω

AV3 IN

S-Video IN

Y: 1V p-p 75

Ω

(4-pin)

C:0,3V p-p 75

Ω

Audio (RCAx2)

500mV rms 10k

Ω

Video (RCAx1)

1V p-p 75

Ω

High Voltage:

30,5kV ± 1kV

Picture Tube:

W66EKT50X21

66cm

Audio Output:

2 x 7W RMS, 2 x 15W MPO
8

Ω

Impedance

Headphones:

Ω

Impedance

Accessories
supplied :

Remote Control
2 x R6 (UM3) Batteries

Dimensions:

Height:

508,8mm

Width:

763,2mm

Depth:

512,2mm

Net weight:

42kg

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. 01-SM-017

Panasonic CS ( U.K. ) Ltd.

WILLOUGHBY ROAD,

BRACKNELL,

BERKS.,

RG12 8FT.

Содержание TX-28PL1

Страница 1: ... 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 Audio 21 pin 500mV rms 1kΩ AV3 IN S Video IN Y 1V p p 75Ω 4 pin C 0 3V p p 75Ω Audio RCAx2 500mV rms 10kΩ Video RCAx1 1V p p 75Ω High Voltage 30 5kV 1kV Picture Tube W66EKT50X21 66cm Audio Output 2 x 7W RMS 2 x 15W MPO 8Ω Impedance Headphones 8Ω Impedance Accessories s...

Страница 2: ...t part 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 ...

Страница 3: ...SERVICE HINTS How to remove the rear cover 1 Remove the 10 screws as shown in Fig 2 LOCATION OF CONTROLS 3 Fig 2 SCREWS SCREWS Fig 3 Z Board Y Board E Board M Board Focus P Board Q Board H Board Screen ...

Страница 4: ...ve wiring clips and rotate the chassis horizontally through 90 anti clockwise 4 Locate the chassis to position Fig 7 Using a speaker screw screw the chassis frame into the top speaker fixing rib A as shown in Fig 5 Put the bottom of the chassis into Fig 6 position 5 After servicing ensure all wiring is returned to its original position before returning the receiver to the customer 4 Fig 4 Fig 7 Fi...

Страница 5: ...n the customer controls at the front of 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 appear in place of O K Service Aids To aid in the service of our current chassis there are a number of Service Aids which have been made available LUCI interface kit Linked Utility Computer Interface Pa...

Страница 6: ...WAVEFORM PATTERN TABLE 6 CONDITIONS CONTRAST MAX BRIGHTNESS MID COLOUR MID SHARPNESS MID ...

Страница 7: ...izontal Amplitude H Amp 055 Optimum setting Vert Amplitude V Amp 054 Optimum setting EW amplitude EW Amp 1 054 Optimum setting EW amplitude EW Amp 2 006 Optimum setting Trapezium comp Trapez 1 047 Optimum setting Trapezium comp Trapez 2 004 Optimum setting Vertical Linearity V Lin 006 Optimum setting Vertical Symmetry V Sym 002 Optimum setting DVCO DVCO 005 Receive a PAL Colour Bar Pattern For DVC...

Страница 8: ...2 4 3 5 IC351 TUNER Q104 Red 15 Blue 7 Green 11 Video In 20 AV2 C 15 Video Out 19 G OUT 38 R OUT 37 G IN 46 R IN 45 Q306 Q304 Q302 Q3001 G 38 B 39 Y BOARD E BOARD RGB OUTPUT VIDEO PROCESSOR MICRO PROCESSOR E15 6 8 H1 H3 E61 1 1 6 8 H BOARD IC3401 8 6 3 VIDEO SWITCHING 2 4 2 4 Q3201 Q3202 Q3207 M2 E17 6 6 AV3 Y C M BOARD M3 4 2 8 6 H2 4 2 8 6 Q3208 Q3209 Q3402 Q3203 Q3204 Q3206 Q3205 7 7 SVM OUT 34...

Страница 9: ...2_OUT_R 27 SC2_IN_L 39 SC2_IN_R 40 SC2_OUT_L 28 E BOARD AUDIO PROCESSOR E16A 1 M1 1 2 2 AV3 R 7R HEADPHONE 5L M5 3 M4 1 E17 10 M2 10 8 8 M BOARD Q2102 Q2103 L 21 DACA_R 22 DACA_L L R Z BOARD IC2201 2 AMP 8 10 IC2221 2 AMP 8 10 Z3 1 AFB ON OFF 2 5 6 1 Z4 2 5 6 1 E10 Q252 Q251 IC251 5 R R 7 2 L L 11 AUDIO OUTPUT 2 L Mic In 1 R Mic In Z5 Z2 Q2202 Q2201 IC2302 L R L R M7 1 8 2L 3R Q2303 Q2301 AUDIO MO...

Страница 10: ...5 Q1107 Q1104 51 72 73 AV LINK SLOW 2 SLOW 1 SCL 1 SDA 1 59 58 Q3006 Q3007 55 VPROT KEYSCAN ON OFF R C L E D PROT 1 SLOW 2 OUT IN SLOW 1 SERVICE SCL SDA 48 49 SCL SDA H BOARD E BOARD 3 IC3401 VIDEO SWITCHING IC2101 8 7 4 AUDIO PROCESSOR MICRO PROCESSOR VIDEO PROCESSOR IC1103 6 5 EAROM Q1051 M1 E16A 8 7 7 M2 5 E17 5 IC1061 REMOTE CONTROL RECEIVER D1061 Q1062 LOCAL KEYS SWITCH MATRIX M BOARD 8 Q3401...

Страница 11: ...CESSOR VIDEO PROCESSOR EPROM EAROM IC1105 2 RESET REG REG REG IC3401 7 VIDEO SWITCHING IC701 6 EW CORRECTION POWER SUPPLY IC451 6 3 1 V OUTPUT AUDIO OUTPUT D801 E BOARD Y BOARD E3 2 Y3 2 E1 4 1 E2 2 1 E62 1 H3 2 IC351 6 RGB OUTPUT 12V Degauss Coil F802 M10 4 1 Line Filter Mains In M BOARD M1 9 E16A 9 IC1061 REMOTE CONTROL RECEIVER Q BOARD 1 1 54 5 36 R842 R843 R843 Q1 2 1 Q2 2 1 1 1 E8 1 Y2 1 Q908...

Страница 12: ...PARTS LOCATION 12 NOTE The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List 22 6 11 24 12 19 4 5 1 7 10 3 9 16 17 23 25 15 2 8 13 18 21 14 26 20 ...

Страница 13: ...0 0 6 1 286 20321 176 77 5 5 5 3 6 7 227 5217 7 6 7 227 5 5 7 35 6 7 7 0 35 6 7 7 0 6 7 7 32 5 87721 635 1 7 6 63 5 5 725 7 63 5 3 1 7 3 63 5 3 1 3 7 3 27720 3 1 7 3 27720 3 1 5 7 3 29 5 7 3 63 5 2 0 70 58 5 03 5 700 21752 5 7 70 2 5 70 5721 66 73 723 86 21 73 27720 86 21 73 527 7 21 2 7 62 7 6 3 6 7 16758 7 21 22 6 1 6 74 V 8 2 287387 5 287387 7 4 1 9 57 287387 1 9 2 352 6625 9 3 33 255 7 21 7 32...

Страница 14: ... 4 75 16 6725 4 6 67 75 16 6725 4 6 67 75 16 6725 4 75 16 6725 4 75 16 6725 4 75 16 6725 4 0 7 75 16 6725 4 75 16 6725 4 0 7 75 16 6725 4 75 16 6725 4 0 7 75 16 6725 4 7 04 75 16 6725 4 7 04 75 16 6725 4 7 04 75 16 6725 4 75 16 6725 4 75 16 6725 4 6 75 16 6725 4 6 0 75 16 6725 4 6 7 75 16 6725 4 75 16 6725 4 75 16 6725 4 6 75 16 6725 4 75 16 6725 4 6 79 75 16 6725 4 75 16 6725 4 75 16 6725 4 75 16...

Страница 15: ... 7 5 2 5 5 2 5 5 2 7 7 5 2 7 7 5 2 61 5 2 61 5 7 56 1 7 5 1 1 7 5 1 5 67 6 5 67 5 67 5 67 5 6 67256 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 ...

Страница 16: ...5 7 5 5 21 5 5 6 7 5 7 5 281 5 5 5 5 6 0 5 5 5 9 0 7 5 54 3 6 0 5 5 5 9 281 5 5 5 5 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 0 7 5 5 9 0 7 5 5 9 0 7 5 5 9 5 21 5 5 6 7 7 5 21 5 5 6 7 7 5 21 5 5 6 7 7 5 21 5 5 6 7 7 5 21 5 5 6...

Страница 17: ...7 5 21 5 5 7 7 6 0 5 5 5 9 5 21 5 5 7 7 6 0 5 5 5 5 9 6 0 5 5 5 9 0 7 5 5 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 86 5 54 3 5 6 5 5 21 5 5 6 7 7 5 21 5 5 6 7 7 5 21 5 5 6 7 7 5 21 5 5 6 7 7 6 0 5 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 0 7 5 5 6 3 0 7 5 5 6 3 6 0 5 5 5 9 6 0 5 5 5 9 281 5 5 3 5 3 5 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 86...

Страница 18: ...9 6 0 5 5 5 9 6 0 5 5 5 9 5 21 5 5 6 7 5 7 5 5 21 5 5 6 7 5 7 5 5 21 5 5 6 7 5 7 5 62 5 5 0 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 ...

Страница 19: ...5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 6 0 5 5 5 9 3 7256 6 0 3 9 9 Q 6 0 3 9 9 Q 6...

Страница 20: ... 60 9 07 9 6 0 3 9 9 Q 6 0 3 9 Q 6 0 3 89 9 Q 6 0 3 9 9 Q 6 0 3 9 9 Q 6 0 3 9 9 Q 6 0 3 9 9 Q 7 0 9 6 0 3 9 Q 6 0 3 89 9 S 6 0 3 9 9 Q 6 0 3 89 9 S 6 0 3 89 9 S 6 0 3 89 9 S 6 0 3 89 9 S 6 0 3 89 9 S 6 0 3 89 9 S 6 0 3 89 0 9 Q 5 0 5 9 S 7 9 6 0 3 9 9 Q 7 9 0 4 9 Q 0 4 9 Q 7 9 Q 5 0 1 0 9 5 0 38 9 Q 5 0 38 9 Q 5 0 38 9 Q 5 0 38 9 Q 7 26 9 5 0 3 9 Q 5 0 5 9 S 7 8 9 S 5 0 1 0 9 Q 0 4 9 Q 0 9 Q 0 4 9...

Страница 21: ... S 6 0 3 89 9 S 6 0 3 89 9 S 6 0 3 89 9 S 6 0 3 89 9 S 7 0 9 7 0 9 6 0 3 9 9 Q 6 0 3 9 9 Q 6 0 3 9 9 Q 7 60 9 07 9 6 0 3 9 9 Q 7 0 9 6 0 3 89 9 S 6 0 3 89 9 S 7 60 9 07 9 6 0 3 89 9 S 6 0 3 89 9 Q 7 0 9 7 0 9 7 0 9 6 0 3 89 9 Q 7 0 5 9 6 0 3 9 9 Q 6 0 3 9 Q 6 0 3 89 9 S 6 0 3 9 9 Q 6 0 3 9 9 Q 6 0 3 9 9 Q 6 0 3 9 9 Q 6 0 3 89 9 S 6 0 3 9 9 Q 6 0 3 89 9 Q 7 0 9 7 0 9 6 0 3 89 9 Q 7 0 5 9 6 0 3 9 9 ...

Страница 22: ...S 7 0 9 6 0 3 9 9 Q 6 0 3 9 9 Q 6 0 3 9 9 Q 6 0 3 9 9 Q 6 0 3 9 9 Q 6 0 3 9 9 Q 6 0 3 9 9 Q 7 0 9 6 0 3 9 9 Q 7 0 5 9 0 49 9 Q 6 0 3 89 9 S 7 60 9 07 9 0 49 9 Q 6 0 3 89 9 S 6 0 3 89 9 S 6 0 3 89 9 S 7 60 9 07 9 7 60 9 07 9 6 0 3 6 9 Q 7 50 1 6 1 1 6 5 62 7 3 6 57 62 7 9 7 50 1 7 57 62 7 6 6 7 6 6 7 6 6 6 6 7 6 94 5 6 7 6 94 5 6 7 6 94 5 6 7 6 94 5 6 7 6 94 5 5 6 5 5 2 4 5 5 76 ...

Страница 23: ...23 NOTES ...

Страница 24: ...g 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 failure Connect the earth of th...

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Страница 32: ...D554 B1 IC1101 E6 Q254 C7 D556 A2 IC1102 F6 Q3001 E1 D557 B1 IC1103 E6 Q3006 F1 D558 C2 IC1104 F7 Q3007 F1 D556 A2 IC1105 D5 Q301 E3 D601 D2 IC2101 E4 Q302 F3 D603 D3 IC251 D7 Q303 E3 D605 D3 IC451 C2 Q304 F3 D606 D2 IC601 E2 Q305 E2 D607 F2 IC701 C2 Q306 F2 D609 C1 IC801 A5 Q3601 E2 D615 E2 IC850 B4 Q451 E5 D616 E2 IC851 C5 Q503 A4 D618 D3 IC853 F3 Q551 A3 D701 C3 Q552 B1 D702 C2 Q701 C3 D703 C3 ...

Страница 33: ...5 C3 D903 C3 Q906 C3 D904 C2 Q907 C3 D905 C3 Q908 D2 D906 D3 Q909 D2 D907 C3 DIODES IC S D354 B3 IC351 A2 D355 A3 TP S D356 B3 TPY1 B3 D357 B3 TPY2 B2 D358 B3 TPY3 B3 D359 B3 TPY4 C2 D360 A2 TPY5 C2 D361 B1 TPY6 A1 H BOARD TNP8EH002 TRAN S Q3401 C2 Q3402 A2 IC S IC3401 B2 33 A B C D 1 2 3 A B C 1 2 3 ...

Страница 34: ...D TNP8EM025 TRAN S Q1062 A1 Q1900 B8 Q3201 B6 Q3202 A6 Q3203 A6 Q3204 B6 Q3205 A6 Q3206 B6 Q3207 B6 Q3208 B7 Q3209 B7 DIODES D1055 A1 D1061 A1 D3201 A7 D3202 A7 IC s IC1061 A1 IC1900 B8 A B 1 2 3 4 5 6 7 8 C ...

Страница 35: ...P BOARD TNP8EP018 DIODES D580 B3 D581 E3 A B C D 1 2 3 E ...

Страница 36: ...Q BOARD TNP8EQ002 Z BOARD TNP8EZ003 TRAN S IC s Q2201 IC2201 Q2202 IC2221 IC2302 34 ...

Страница 37: ...35 NOTES ...

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