Panasonic TC26LX50 - LCD COLOR TV, Service Manual

Page: 2 / 71

1 Safety Precautions 4
1.1. General Guidelines 4
2 Warning 4
2.1. Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 4
2.2. About lead free solder (PbF) 5
3 Location of Controls and Components 6
4 Service Mode 7
4.1. How to enter into adjustment mode 7
4.2. Cancellation 7
4.3. Contents of adjustment mode 7
5 Troubleshooting Guide 9
5.1. Self-check function 9
6 Disassembly and Assembly Instructions 10
6.1. Removing the cable cover 10
6.2. Removing the pedestal 10
6.3. Removing the back cover (TC-32LX50) 10
6.4. Removing the back cover (TC-26LX50) 10
6.5. Removing the sp box 11
6.6. Removing the rear AV bracket 11
6.7. Removing the rear support MTG 11
6.8. Removing the font bracket and G-Board 12
6.9. Removing the K-Board and V-Board 12
6.10. Removing the LVDS metal bracket and DV-DG shield 12
6.11. Removing the tuner cover, DV-Board, AP-Board, DG-
Board, and H-Board 13
6.12. Removing the power unit 13
6.13. Removing the chassis 13
6.14. Removing the LCD panel ass ｴ y and LCD L/R MTG 13
6.15. Removing the LCD panel and LCD T/B MTG 14
6.16. Lead Wiring (1) 14
6.17. Lead Wiring (2) 14
6.18. Lead Wiring (3) 14
7 Measurements and Adjustments 15
7.1. Picture level adjustment 15
7.2. MTS Adjustment 18
8 Block Diagram 21
8.1. Block Diagram (1 of 4) 21
8.2. Block Diagram (2 of 4) 22
8.3. Block Diagram (3 of 4) 23
8.4. Block Diagram (4 of 4) 24
9 Wiring Connection Diagram 25
10 Schematic Diagrams 27
10.1. Schematic Diagram Notes 27
10.2. AP-Board (1 of 2) Schematic Diagram 28
10.3. AP-Board (2 of 2) Schematic Diagram 29
10.4. H-Board (1 of 3) Schematic Diagram 30
10.5. H-Board (2 of 3) Schematic Diagram 31
10.6. H-Board (3 of 3) Schematic Diagram 32
10.7. DG-Board (1 of 7) Schematic Diagram 33
10.8. DG-Board (2 of 7) Schematic Diagram 34
10.9. DG-Board (3 of 7) Schematic Diagram 35
10.10. DG-Board (4 of 7) Schematic Diagram 36
10.11. DG-Board (5 of 7) Schematic Diagram 37
10.12. DG-Board (6 of 7) Schematic Diagram 38
10.13. DG-Board (7 of 7) Schematic Diagram 39
10.14. DV-Board Schematic Diagram 40
10.15. G, K, and V-Board Schematic Diagram 41
11 Printed Circuit Board 43
11.1. AP-Board 43
11.2. H-Board 45
11.3. DG-Board 48
11.4. G-Board 51
11.5. DV, K, and V-Board 52
12 Exploded View and Replacement Parts List 53
12.1. Parts Layout 53
12.2. Front Chassis Layout 54
12.3. Packing Exploded Views 55
AUDIO L-R (RCA PIN Type ×2) ×1 0.5Vrms
Dimensions ( W × H × D )
Including TV Stand 26.1 “ × 21.9 “ × 11.8 “ (663 mm × 556 mm × 299.5 mm) (TC-26LX50)
31.3 “ × 25 “ ×11.8 “ (795 mm × 634.7 mm × 299.5 mm) (TC-32LX50)
TV Set Only 26.1 “ × 19.5 “ ×5.54 “ (663 mm × 494.3 mm × 140.7 mm) (TC-26LX50)
31.3 “ × 22.6 “ ×5.54 “ (795 mm × 573 mm × 140.7 mm) (TC-32LX50)
Mass (Weight) 18 kg (39.6 lb.) NET (TC-26LX50)
21 kg (46.2 lb.) NET (TC-32LX50)
Note:
Design and Specifications are subject to change without notice. Weight and Dimensions shown are approximate.
CONTENTS
Page Page
2
TC-32LX50 / TC-26LX50