Panasonic TX-25LK1P, Service Manual

Page 1: ... 33 05MHz NICAM 33 4MHz 33 16MHz A2 33 05MHz NICAM B G Colour 34 47MHz 34 5MHz 34 65MHz 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 RCA IN Video 1V p p 75Ω RCA IN Audio 500mV rms 10kΩ High Voltage 28kV 1kV Picture Tube A66ECF50X04 66cm A59EEQ15X97 59cm Audio Output 2 x 10W M P O 2 x 5W R M S...

Page 2: ...art 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...

Page 3: ...SERVICE HINTS How to remove the rear cover 1 Remove the 6 screws as shown in Fig 2 LOCATION OF CONTROLS 3 Screws Fig 2 Focus E Board Y Board Screen Fig 3 ...

Page 4: ...stomer settings to factory settings and clear owner ID of all information input by the customer enter Self Check mode Press the down v button on the customer controls at the front of the TV 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 Service Aids To aid in the service of our current chassis there are a number of...

Page 5: ... 20ms 28 4V H OUT IC 601 Pin 33 64µs 3V EW OUT IC 701 Pin 5 64µs 20V H PULSE Base Q501 64µs 1 4V IC 701 Pin 8 HFLB 64µs 2V FBI SCO IC 601 Pin 34 64µs 5 7V SCL IC 601 Pin 2 47µs 5V B OUT IC 601 Pin 53 64µs 2 7V R OUT IC 601 Pin 51 64µs 2 7V G OUT IC 601 Pin 52 64µs 2 7V IC601 Pin 38 VIDEO OUT 64 µs 2 7 V 5 ...

Page 6: ...ptimum setting 7 Horizontal bow H BOW 031 Optimum setting 8 R Cut R CUT 08 Optimum setting 9 G Cut G CUT 08 Optimum setting 10 R Drive R DRV 31 Optimum setting 11 G Drive G DRV 31 Optimum setting 12 B Drive B DRV 31 Optimum setting 13 AGC AGC 20 Optimum setting 14 Sub Colour S COL 15 Optimum setting 15 Sub Brightness S BRI 31 Optimum setting 16 Horizontal Width EW WD 34 Optimum setting 17 EW parab...

Page 7: ... 9 2 7 32 5 6833 7 21 2 5 0 ...

Page 8: ... 9 2 67 5 2 8 2 2 5 0 ...

Page 9: ... 21752 2 5 0 ...

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

Page 11: ...7 1 6 5 93 7 7 12 78 0 6 1 286 20321 176 7 50 6725 2 5 32 70 6 1625 5 3 57 62 7 6 7 6 V 8 2 287387 7 5 287387 7 9 57 287387 1 8 2 9 2 352 6625 7 9 6 255 7 21 7 9 5 8 725 1 32 5 6833 675 5525 6 1 9 5 8 725 0 05 9 5 8 725 7 0 5 6 7 01 7 5 9 5 530 5 6 7 01 5 7 9 5 8 725 7 9 5 8 725 7 0 8 2 352 6625 063 32 86 6 86 86 2 5 86 2 5 86 75 7 86 75 7 86 75 7 2 6 2 07 7 2 07 7 2 0 7 2 07 7 2 07 7 2 07 7 2 65 ...

Page 12: ...5 4 75 16 6725 4 75 16 6725 4 75 16 6725 4 6 6 75 16 250 56 75 16 250 5 7 7 75 16 250 5 7 73 1 8 75 16 250 5 7 2 6 2 6 7 2 7 9 9 2 2 7 9 9 2 7 9 9 2 5 9 2 2 2 6 7 2 6 7 2 5 9 2 6 7 2 6 7 2 6 7 2 7 9 9 2 7 9 9 5 2 7 9 9 5 2 6 7 2 7 9 9 5 2 7 9 9 2 7 7 5 2 7 7 5 2 6 7 2 6 7 2 7 9 9 2 5 9 7 56 1 7 5 1 6 7 5 5 67 6 5 67 766 5 67 6 7 5 67 5 6 67256 6 0 5 5 5 6 0 5 6 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 ...

Page 13: ...0 5 5 5 6 0 5 5 5 1 6 0 5 5 5 5 21 5 5 7 0 7 5 5 6 6 0 7 5 5 1 3 6 0 5 5 5 6 0 5 5 5 0 7 5 5 6 5 21 5 5 6 7 5 21 5 5 7 86 5 54 3 86 5 54 6 0 5 5 5 6 0 5 5 5 1 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5...

Page 14: ... 7 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 5 21 5 5 6 7 6 0 5 5 5 0 7 5 5 21 5 5 6 7 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 5 21 5 5 6 7 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 6 0 5 5 5 ...

Page 15: ... Q 7 9 9 Q 7 8 9 7 8 9 7 9 9 Q 7 8 9 7 9 9 Q 7 0 9 7 8 9 7 8 9 7 0 9 7 0 5 9 7 0 9 S 7 9 Q 6 0 3 89 9 S 6 0 3 89 9 S 6 0 3 89 9 S 7 9 Q 7 9 9 Q 7 0 9 7 9 9 Q 7 9 0 4 9 Q 0 4 9 Q 0 43 9 Q 0 43 9 Q 7 0 9 7 9 9 Q 7 9 9 Q 7 0 9 5 0 9 S 5 0 1 0 9 Q 5 0 1 0 9 Q 0 4 0 9 Q 5 0 9 Q 5 0 9 Q 5 0 9 Q 7 26 9 7 9 5 0 9 S 5 0 9 S 5 0 1 N9 S 5 0 9 Q 7 9 5 0 9 Q 0 4 9 Q 7 0 9 5 0 9 S 7 9 9 Q 7 90 9 7 0 9 7 9 9 Q 7...

Page 16: ...6 94 5 6 7 6 94 5 5 6 5 5 0 5 1 6 25 02 7 3 3 2 9 5 7 4 1 7 7 866 2 7 3 713 02 7 0 5 5 29 5 7 8 3 713 0 6 1 286 20321 176 5721 73 723 86 21 73 27720 86 21 73 77 5 3 80 3 16758 7 21 22 6 8 5 1 520 1 1 74 01 32 6 81 5 1 74 34 1 6 74 58 V 520 3 3 2 6 2 5 6 67256 5 21 5 5 6 7 5 5 21 5 5 6 7 5 5 6 6725 5 54 3 5 6 5 3 7256 5 0 9 Q 0 9 9 Q 0 9 Q 0 9 Q 5 1 6 25 02 7 3 3 2 9 5 7 1 7 7 866 2 7 3 713 02 7 0 ...

Page 17: ...nting 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 o...

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Page 20: ...B3 D556 D1 IC801 C2 Q1101 D5 D557 D1 IC802 C3 Q1102 A3 D559 E2 IC851 D4 Q1103 E5 D601 E6 IC852 D4 Q1104 D6 D603 E6 IC1102 D5 Q1105 D5 D606 E6 IC1103 B5 Q1106 E5 D607 E3 IC1104 A2 Q1107 A2 D701 C3 IC1105 B6 Q1109 A3 D702 D3 IC1201 A3 Q1110 A3 D703 D4 IC1202 A3 Q1201 B3 D704 D3 IC2001 B5 Q1204 A3 D705 D3 Q2001 B7 D706 D4 T P S Q2002 B7 D707 D4 TP1 A3 Q2003 B7 D751 C3 TP2 E2 Q2004 B7 D753 C2 TP3 E3 Q...

Page 21: ...Y BOARD TNP8EY015 TRAN S Q351 B1 DIODES D350 A1 D351 B1 D352 A2 D353 A3 D370 B1 D371 B1 D372 B1 D373 B1 T P S TPY4 B2 TPY5 A3 I C S IC351 A1 1 2 3 A B 21 ...

Page 22: ...22 NOTES ...