TX-PR50V10 - Panasonic Plasma Service Manual (repair manual). Page 2

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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. Service Hint--------------------------------------------------6
3.2. Applicable signals------------------------------------------7

4 Specifications ------------------------------------------------------8
5 Service Mode -------------------------------------------------------9

5.1. How to enter into Service Mode ------------------------9
5.2. Service tool mode---------------------------------------- 11
5.3. Hotel mode------------------------------------------------- 12

6 Troubleshooting Guide---------------------------------------- 13

6.1. Check of the IIC bus lines------------------------------ 13
6.2. Power LED Blinking timing chart --------------------- 14
6.3. No Power--------------------------------------------------- 15
6.4. No Picture -------------------------------------------------- 16
6.5. Local screen failure-------------------------------------- 17

7 Disassembly and Assembly Instructions--------------- 18

7.1. Remove the Rear cover -------------------------------- 18
7.2. Remove the Fan------------------------------------------ 18
7.3. Remove the P-Board------------------------------------ 18
7.4. Remove the Side terminal cover and Rear

terminal cover --------------------------------------------- 18

7.5. Remove the Tuner unit --------------------------------- 19
7.6. Remove the A-Board------------------------------------ 19
7.7. Remove the D-Board------------------------------------ 20
7.8. Remove the Speakers ---------------------------------- 20
7.9. Remove the Control button unit ---------------------- 20

7.10. Remove the GK-Board --------------------------------- 21

7.11. Remove the SU-Board---------------------------------- 21

7.12. Remove the SD-Board---------------------------------- 21
7.13. Remove the SC-Board---------------------------------- 21
7.14. Remove the SS2-Board -------------------------------- 22
7.15. Remove the SS-Board---------------------------------- 22
7.16. Remove the Hanger metals and the Stand

brackets----------------------------------------------------- 22

7.17. Remove the C1-Board ---------------------------------- 23
7.18. Remove the C2-Board ---------------------------------- 23
7.19. Remove the C3-Board ---------------------------------- 23
7.20. Remove the Plasma panel section from the

Cabinet assy (glass)------------------------------------- 23

7.21. Remove the S-Board------------------------------------ 24
7.22. Remove the K-Board------------------------------------ 24
7.23. Remove the GL-Board---------------------------------- 24
7.24. Replace the plasma panel ----------------------------- 25

8 Measurements and Adjustments -------------------------- 26

8.1. Adjustment Procedure ---------------------------------- 26
8.2. Adjustment------------------------------------------------- 29

9 Block Diagram --------------------------------------------------- 33

9.1. Main Block Diagram ------------------------------------- 33
9.2. Block (1/5) Diagram ------------------------------------- 34
9.3. Block (2/5) Diagram ------------------------------------- 35
9.4. Block (3/5) Diagram ------------------------------------- 36
9.5. Block (4/5) Diagram ------------------------------------- 37
9.6. Block (5/5) Diagram ------------------------------------- 38

10 Wiring Connection Diagram --------------------------------- 39

10.1. Caution statement.--------------------------------------- 39
10.2. Wiring (1) --------------------------------------------------- 39
10.3. Wiring (2) --------------------------------------------------- 40
10.4. Wiring (3) --------------------------------------------------- 40

10.5. Wiring (4) -------------------------------------------------- 41
10.6. Wiring (5) -------------------------------------------------- 41
10.7. Wiring (6) -------------------------------------------------- 42
10.8. Wiring (7) -------------------------------------------------- 42
10.9. Wiring (8) -------------------------------------------------- 43

10.10. Wiring (9) -------------------------------------------------- 44

11 Schematic Diagram ------------------------------------------- 45

11.1. Schematic Diagram Note ------------------------------ 45
11.2. P-Board (1/2) Schematic Diagram ------------------ 46
11.3. P-Board (2/2) Schematic Diagram ------------------ 47
11.4. GK, GL, K and S-Board Schematic Diagram ----- 48
11.5. A-Board (1/22) Schematic Diagram----------------- 49
11.6. A-Board (2/22) Schematic Diagram----------------- 50
11.7. A-Board (3/22) Schematic Diagram----------------- 51
11.8. A-Board (4/22) Schematic Diagram----------------- 52
11.9. A-Board (5/22) Schematic Diagram----------------- 53

11.10. A-Board (6/22) Schematic Diagram----------------- 54

11.11. A-Board (7/22) Schematic Diagram----------------- 55

11.12. A-Board (8/22) Schematic Diagram----------------- 56
11.13. A-Board (9/22) Schematic Diagram----------------- 57
11.14. A-Board (10/22) Schematic Diagram --------------- 58
11.15. A-Board (11/22) Schematic Diagram --------------- 59
11.16. A-Board (12/22) Schematic Diagram --------------- 60
11.17. A-Board (13/22) Schematic Diagram --------------- 61
11.18. A-Board (14/22) Schematic Diagram --------------- 62
11.19. A-Board (15/22) Schematic Diagram --------------- 63
11.20. A-Board (16/22) Schematic Diagram --------------- 64
11.21. A-Board (17/22) Schematic Diagram --------------- 65
11.22. A-Board (18/22) Schematic Diagram --------------- 66
11.23. A-Board (19/22) Schematic Diagram --------------- 67
11.24. A-Board (20/22) Schematic Diagram --------------- 68
11.25. A-Board (21/22) Schematic Diagram --------------- 69
11.26. A-Board (22/22) Schematic Diagram --------------- 70
11.27. D-Board (1/4) Schematic Diagram ------------------ 71
11.28. D-Board (2/4) Schematic Diagram ------------------ 72
11.29. D-Board (3/4) Schematic Diagram ------------------ 73
11.30. D-Board (4/4) Schematic Diagram ------------------ 74
11.31. C1-Board Schematic Diagram ----------------------- 75
11.32. C2-Board (1/2) Schematic Diagram ---------------- 76
11.33. C2-Board (2/2) Schematic Diagram ---------------- 77
11.34. C3-Board (1/2) Schematic Diagram ---------------- 78
11.35. C3-Board (2/2) Schematic Diagram ---------------- 79
11.36. SC-Board (1/4) Schematic Diagram ---------------- 80
11.37. SC-Board (2/4) Schematic Diagram ---------------- 81
11.38. SC-Board (3/4) Schematic Diagram ---------------- 82
11.39. SC-Board (4/4) Schematic Diagram ---------------- 83
11.40. SS-Board (1/2) Schematic Diagram ---------------- 84
11.41. SS-Board (2/2) and SS2-Board Schematic

Diagram ---------------------------------------------------- 85

12 Printed Circuit Board------------------------------------------ 86

12.1. P-Board ---------------------------------------------------- 86
12.2. GK, K, S and SS2-Board ------------------------------ 89
12.3. GL-Board -------------------------------------------------- 90
12.4. A-Board ---------------------------------------------------- 91
12.5. D-Board ---------------------------------------------------- 93
12.6. C1-Board--------------------------------------------------- 95
12.7. C2-Board--------------------------------------------------- 96
12.8. C3-Board--------------------------------------------------- 97
12.9. SC-Board -------------------------------------------------- 98

12.10. SS-Board -------------------------------------------------101

13 Exploded View and Replacement Parts List----------103

13.1. Exploded View and Mechanical Replacement

Parts List --------------------------------------------------103

13.2. Electrical Replacement Parts List ------------------ 110