Panasonic Viera TH-P50X20K, Service Manual

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TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions ----------------------------------------------- 3
1.1. General Guidelines ----------------------------------------3
1.2. Touch-Current Check--------------------------------------3
2 Warning -------------------------------------------------------------- 4
2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices ----------4
2.2. About lead free solder (PbF) ----------------------------5
3 Service Navigation ------------------------------------------------ 6
3.1. PCB Layout--------------------------------------------------6
3.2. Applicable signals------------------------------------------7
4 Specifications ------------------------------------------------------ 8
5 Service Mode ----------------------------------------------------- 10
5.1. How to enter into Service Mode ---------------------- 10
5.2. Option - Mirror--------------------------------------------- 12
5.3. Service tool mode---------------------------------------- 12
5.4. Hotel mode------------------------------------------------- 13
5.5. Data Copy by SD Card --------------------------------- 14
6 Troubleshooting Guide ---------------------------------------- 17
6.1. Check of the IIC bus lines------------------------------ 17
6.2. Power LED Blinking timing chart --------------------- 18
6.3. No Power--------------------------------------------------- 19
6.4. No Picture -------------------------------------------------- 20
6.5. Local screen failure-------------------------------------- 21
7 Service Fixture & Tools --------------------------------------- 22
7.1. SC jig -------------------------------------------------------- 22
8 Disassembly and Assembly Instructions --------------- 23
8.1. Remove the Rear cover -------------------------------- 23
8.2. Remove the AC inlet ------------------------------------ 23
8.3. Remove the P-Board------------------------------------ 23
8.4. Remove the Side terminal cover and the Side
shield metal ------------------------------------------------ 23
8.5. Remove the Tuner unit --------------------------------- 24
8.6. Remove the A-Board------------------------------------ 24
8.7. Remove the Speakers ---------------------------------- 24
8.8. Remove the SU-Board---------------------------------- 24
8.9. Remove the SD-Board---------------------------------- 25
8.10. Remove the SC-Board---------------------------------- 25
8.11. Remove the SS-Board---------------------------------- 25
8.12. Remove the Hanger metals and the Stand
brackets----------------------------------------------------- 25
8.13. Remove the C1-Board ---------------------------------- 26
8.14. Remove the C2-Board ---------------------------------- 26
8.15. Remove the Plasma panel section from the
Cabinet assy (glass)------------------------------------- 26
8.16. Remove the Glass holders ---------------------------- 27
8.17. Remove the K-Board------------------------------------ 27
8.18. Replace the plasma panel ----------------------------- 27
9 Measurements and Adjustments -------------------------- 28
9.1. Adjustment------------------------------------------------- 28
10 Block Diagram --------------------------------------------------- 33
10.1. Main Block Diagram ------------------------------------- 33
10.2. Block (1/4) Diagram ------------------------------------- 34
10.3. Block (2/4) Diagram ------------------------------------- 35
10.4. Block (3/4) Diagram ------------------------------------- 36
10.5. Block (4/4) Diagram ------------------------------------- 37
11 Wiring Connection Diagram --------------------------------- 39
11.1. Caution statement.--------------------------------------- 39
11.2. Wiring (1) --------------------------------------------------- 39
11.3. Wiring (2) -------------------------------------------------- 40
11.4. Wiring (3) -------------------------------------------------- 40
11.5. Wiring (4) -------------------------------------------------- 41
12 Schematic Diagram -------------------------------------------- 43
12.1. Schematic Diagram Note ------------------------------ 43
12.2. A-Board (1/13) Schematic Diagram----------------- 44
12.3. A-Board (2/13) Schematic Diagram----------------- 45
12.4. A-Board (3/13) Schematic Diagram----------------- 46
12.5. A-Board (4/13) Schematic Diagram----------------- 47
12.6. A-Board (5/13) Schematic Diagram----------------- 48
12.7. A-Board (6/13) Schematic Diagram----------------- 49
12.8. A-Board (7/13) Schematic Diagram----------------- 50
12.9. A-Board (8/13) Schematic Diagram----------------- 51
12.10. A-Board (9/13) Schematic Diagram----------------- 52
12.11. A-Board (10/13) and K-Board Schematic
Diagram ---------------------------------------------------- 53
12.12. A-Board (11/13) Schematic Diagram --------------- 54
12.13. A-Board (12/13) Schematic Diagram --------------- 55
12.14. A-Board (13/13) Schematic Diagram --------------- 56
12.15. C1-Board Schematic Diagram ----------------------- 57
12.16. C2-Board Schematic Diagram ----------------------- 58
12.17. SC-Board (1/4) Schematic Diagram ---------------- 59
12.18. SC-Board (2/4) Schematic Diagram ---------------- 60
12.19. SC-Board (3/4) Schematic Diagram ---------------- 61
12.20. SC-Board (4/4) Schematic Diagram ---------------- 62
12.21. SS-Board (1/2) Schematic Diagram ---------------- 63
12.22. SS-Board (2/2) Schematic Diagram ---------------- 64
13 Printed Circuit Board ------------------------------------------ 65
13.1. K-Board ---------------------------------------------------- 65
13.2. A-Board ---------------------------------------------------- 66
13.3. C1-Board--------------------------------------------------- 68
13.4. C2-Board--------------------------------------------------- 69
13.5. SC-Board -------------------------------------------------- 70
13.6. SS-Board -------------------------------------------------- 72
14 Exploded View and Replacement Parts List ----------- 75
14.1. Exploded View and Mechanical Replacement
Parts List --------------------------------------------------- 75
14.2. Electrical Replacement Parts List ------------------- 82