Panasonic TX-26LX500A, Service Manual

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1 Safety Precautions 5
1.1. General Guidelines 5
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 6
3 Applicable signals 7
4 Self Check Function 8
4.1. Self Check 8
4.2. Power LED Blinking timing chart 9
5 Chassis Board Layout 10
6 Before servicing 11
6.1. Kind and location of the flexible cable and bridge cable 11
6.2. How to remove the connector 12
6.3. Wire dressing 1 13
6.4. Wire dressing 2 14
7 Servicing method 15
7.1. Removing the stand ass’y 15
7.2. Removing the rear cover 15
7.3. Removing the speaker box L and R 15
7.4. Removing the rear AV bracket 16
7.5. Removing the rear metal frame 16
7.6. Removing the P-Board 16
7.7. Removing the DG-Board 16
7.8. Removing the DV-Board 17
7.9. Removing the AP-Board 17
7.10. Removing the H-Board 17
7.11. Removing G-Board bracket (G-Board and GP-Board) 17
7.12. Removing the G-Board and GP-Board 18
7.13. Removing the GS-Board bracket. 18
7.14. Removing the K-Board 18
7.15. Removing the V-Board 19
7.16. Removing the main chassis 19
7.17. Removing the LCD panel 19
8 Service Mode Function 20
8.1. How to enter SERVICE 1 20
8.2. How to enter SERVICE 2 20
8.3. Option Description 23
8.4. Option Code Setting 25
9 Adjustment method 26
9.1. Sub-Contrast/White Balance Adjustment 26
10 Block Diagram 27
10.1. Main Block Diagram 27
10.2. Block Diagram (1 of 6) 28
10.3. Block Diagram (2 of 6) 29
10.4. Block Diagram (3 of 6) 30
10.5. Block Diagram (4 of 6) 31
10.6. Block Diagram (5 of 6) 32
10.7. Block Diagram (6 of 6) 33
11 Schematic Diagram 35
11.1. Schematic Diagram Notes 35
11.2. AP-Board (1 of 2) and K-Board Schematic Diagram 36
11.3. AP-Board (2 of 2) Schematic Diagram 37
11.4. H-Board (1 of 3) Schematic Diagram 38
11.5. H-Board (2 of 3) Schematic Diagram 39
11.6. H-Board (3 of 3) Schematic Diagram 40
11.7. DG-Board (1 of 7) Schematic Diagram 41
11.8. DG-Board (2 of 7) Schematic Diagram 42
11.9. DG-Board (3 of 7) Schematic Diagram 43
11.10. DG-Board (4 of 7) Schematic Diagram 44
11.11. DG-Board (5 of 7) Schematic Diagram 45
11.12. DG-Board (6 of 7) Schematic Diagram 46
11.13. DG-Board (7 of 7) Schematic Diagram 47
11.14. DV-Board Schematic Diagram 48
11.15. GS-Board Schematic Diagram 49
11.16. GP-Board Schematic Diagram 50
11.17. G-Board and V-Board Schematic Diagram 51
12 Printed Circuit Board 53
12.1. AP-Board 53
12.2. H-Board 55
12.3. DG-Board 58
12.4. DV and GP-Board 61
12.5. GS-Board 62
12.6. G-Board 63
Dimensions ( W × H × D )
Including TV Stand 724 mm × 549 mm × 300 mm (TX-26LX500)
857 mm × 624 mm × 300 mm (TX-32LX500)
TV Set Only 724 mm × 487 mm × 141 mm (TX-26LX500)
857 mm × 563 mm × 141 mm (TX-32LX500)
Weight 20.5 kg Net (TX-26LX500)
22.5 kg Net (TX-32LX500)
Note:
Design and Specifications are subject to change without notice. Weight and Dimensions shown are approximate.
CONTENTS
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TX-32LX500M / TX-32LX500A / TX-32LX500X / TX-26LX500M / TX-26LX500A / TX-26LX500X