TX-PR42S10 - 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 P-Board ------------------------------------ 18
7.3. Remove the Side terminal cover and Rear

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

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

7.10. Remove the SD-Board---------------------------------- 21

7.11. Remove the SC-Board---------------------------------- 21

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

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

7.15. Remove the C1-Board ---------------------------------- 22
7.16. Remove the C2-Board ---------------------------------- 22
7.17. Remove the Plasma panel section from the

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

7.18. Remove the S-Board ------------------------------------ 23
7.19. Remove the Front glass -------------------------------- 24
7.20. Remove the K-Board ------------------------------------ 24
7.21. Replace the plasma panel ----------------------------- 24

8 Measurements and Adjustments -------------------------- 25

8.1. Adjustment Procedure ---------------------------------- 25
8.2. Adjustment ------------------------------------------------- 28

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

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

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

10.1. Caution statement.--------------------------------------- 39
10.2. Wiring (1) --------------------------------------------------- 39

10.3. Wiring (2) -------------------------------------------------- 40
10.4. Wiring (3) -------------------------------------------------- 41

11 Schematic Diagram -------------------------------------------- 43

11.1. Schematic Diagram Note ------------------------------ 43
11.2. P-Board (1/2) Schematic Diagram ------------------ 44
11.3. P-Board (2/2) Schematic Diagram ------------------ 45
11.4. GK, GL, K and S-Board Schematic Diagram ----- 46
11.5. A-Board (1/20) Schematic Diagram----------------- 47
11.6. A-Board (2/20) Schematic Diagram----------------- 48
11.7. A-Board (3/20) Schematic Diagram----------------- 49
11.8. A-Board (4/20) Schematic Diagram----------------- 50
11.9. A-Board (5/20) Schematic Diagram ---------------- 51

11.10. A-Board (6/20) Schematic Diagram----------------- 52

11.11. A-Board (7/20) Schematic Diagram----------------- 53

11.12. A-Board (8/20) Schematic Diagram----------------- 54
11.13. A-Board (9/20) Schematic Diagram----------------- 55
11.14. A-Board (10/20) Schematic Diagram --------------- 56
11.15. A-Board (11/20) Schematic Diagram --------------- 57
11.16. A-Board (12/20) Schematic Diagram --------------- 58
11.17. A-Board (13/20) Schematic Diagram --------------- 59
11.18. A-Board (14/20) Schematic Diagram --------------- 60
11.19. A-Board (15/20) Schematic Diagram --------------- 61
11.20. A-Board (16/20) Schematic Diagram --------------- 62
11.21. A-Board (17/20) Schematic Diagram --------------- 63
11.22. A-Board (18/20) Schematic Diagram --------------- 64
11.23. A-Board (19/20) Schematic Diagram --------------- 65
11.24. A-Board (20/20) Schematic Diagram --------------- 66
11.25. C1-Board (1/2) Schematic Diagram ---------------- 67
11.26. C1-Board (2/2) Schematic Diagram ---------------- 68
11.27. C2-Board (1/2) Schematic Diagram ---------------- 69
11.28. C2-Board (2/2) Schematic Diagram ---------------- 70
11.29. SC-Board (1/4) Schematic Diagram ---------------- 71
11.30. SC-Board (2/4) Schematic Diagram ---------------- 72
11.31. SC-Board (3/4) Schematic Diagram ---------------- 73
11.32. SC-Board (4/4) Schematic Diagram ---------------- 74
11.33. SS-Board (1/2) Schematic Diagram ---------------- 75
11.34. SS-Board (2/2) and SS2-Board Schematic

Diagram ---------------------------------------------------- 76

12 Printed Circuit Board------------------------------------------ 77

12.1. P-Board ---------------------------------------------------- 77
12.2. GK, K, S and SS2-Board ------------------------------ 80
12.3. A-Board ---------------------------------------------------- 81
12.4. C1-Board--------------------------------------------------- 83
12.5. C2-Board--------------------------------------------------- 84
12.6. SC-Board -------------------------------------------------- 85
12.7. SS-Board -------------------------------------------------- 88

13 Exploded View and Replacement Parts List----------- 91

13.1. Exploded View and Mechanical Replacement

Parts List --------------------------------------------------- 91

13.2. Electrical Replacement Parts List ------------------- 98