Read Panasonic TX-P42G20E / TX-P42G20ES / TX-PF42G20S / TX-PR42G20 Service Manual online
2
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions -----------------------------------------------3
1.1. General Guidelines ----------------------------------------3
1.2. Touch-Current Check--------------------------------------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
3.2. Applicable signals------------------------------------------7
4 Specifications ------------------------------------------------------8
5 Technical Descriptions---------------------------------------- 10
5 Technical Descriptions---------------------------------------- 10
5.1. Specification of KEY for CI Plus, DTCP-IP and
One-to-One ------------------------------------------------ 10
5.2. USB HDD Recording------------------------------------ 10
6 Service Mode ----------------------------------------------------- 11
6.1. How to enter into Service Mode ---------------------- 11
6.2. Option - Mirror--------------------------------------------- 13
6.3. Service tool mode---------------------------------------- 13
6.4. Hotel mode------------------------------------------------- 14
6.5. Data Copy by SD Card --------------------------------- 15
6.2. Option - Mirror--------------------------------------------- 13
6.3. Service tool mode---------------------------------------- 13
6.4. Hotel mode------------------------------------------------- 14
6.5. Data Copy by SD Card --------------------------------- 15
7 Troubleshooting Guide---------------------------------------- 18
7.1. Check of the IIC bus lines------------------------------ 18
7.2. Power LED Blinking timing chart --------------------- 19
7.3. No Power--------------------------------------------------- 20
7.4. No Picture -------------------------------------------------- 21
7.5. Local screen failure-------------------------------------- 22
7.2. Power LED Blinking timing chart --------------------- 19
7.3. No Power--------------------------------------------------- 20
7.4. No Picture -------------------------------------------------- 21
7.5. Local screen failure-------------------------------------- 22
8 Service Fixture & Tools --------------------------------------- 23
8.1. SC jig -------------------------------------------------------- 23
9 Disassembly and Assembly Instructions--------------- 24
9.1. Remove the Rear cover -------------------------------- 24
9.2. Remove the AC inlet ------------------------------------ 24
9.3. Remove the P-Board------------------------------------ 24
9.4. Remove the Side terminal cover and the Side
9.2. Remove the AC inlet ------------------------------------ 24
9.3. Remove the P-Board------------------------------------ 24
9.4. Remove the Side terminal cover and the Side
shield metal ------------------------------------------------ 24
9.5. Remove the Tuner unit --------------------------------- 24
9.6. Remove the A-Board------------------------------------ 25
9.7. Remove the Speakers ---------------------------------- 25
9.8. Remove the SM-Board --------------------------------- 25
9.9. Remove the SC-Board---------------------------------- 26
9.6. Remove the A-Board------------------------------------ 25
9.7. Remove the Speakers ---------------------------------- 25
9.8. Remove the SM-Board --------------------------------- 25
9.9. Remove the SC-Board---------------------------------- 26
9.10. Remove the SS2-Board -------------------------------- 26
9.11. Remove the SS-Board---------------------------------- 26
9.12. Remove the Hanger metals and the One leg
bracket ------------------------------------------------------ 26
9.13. Remove the Cabinet mount metals------------------ 27
9.14. Remove the C1-Board ---------------------------------- 27
9.15. Remove the C2-Board ---------------------------------- 27
9.16. Remove the Plasma panel section from the
9.14. Remove the C1-Board ---------------------------------- 27
9.15. Remove the C2-Board ---------------------------------- 27
9.16. Remove the Plasma panel section from the
Cabinet assy----------------------------------------------- 27
9.17. Remove the Contact metals --------------------------- 28
9.18. Remove the K-Board------------------------------------ 28
9.19. Replace the plasma panel ----------------------------- 28
9.18. Remove the K-Board------------------------------------ 28
9.19. Replace the plasma panel ----------------------------- 28
10 Measurements and Adjustments -------------------------- 29
10.1. Adjustment------------------------------------------------- 29
11 Block Diagram --------------------------------------------------- 33
11.1. Main Block Diagram ------------------------------------- 33
11.2. Block (1/4) Diagram ------------------------------------- 34
11.3. Block (2/4) Diagram ------------------------------------- 35
11.4. Block (3/4) Diagram ------------------------------------- 36
11.5. Block (4/4) Diagram ------------------------------------- 37
11.2. Block (1/4) Diagram ------------------------------------- 34
11.3. Block (2/4) Diagram ------------------------------------- 35
11.4. Block (3/4) Diagram ------------------------------------- 36
11.5. Block (4/4) Diagram ------------------------------------- 37
12 Wiring Connection Diagram --------------------------------- 39
12.1. Caution statement.--------------------------------------- 39
12.2. Wiring (1) --------------------------------------------------- 39
12.3. Wiring (2) --------------------------------------------------- 40
12.2. Wiring (1) --------------------------------------------------- 39
12.3. Wiring (2) --------------------------------------------------- 40
12.4. Wiring (3) -------------------------------------------------- 41
13 Schematic Diagram -------------------------------------------- 43
13.1. Schematic Diagram Note ------------------------------ 43
13.2. P-Board (1/4) Schematic Diagram ------------------ 44
13.3. P-Board (2/4) Schematic Diagram ------------------ 45
13.4. P-Board (3/4) Schematic Diagram ------------------ 46
13.5. P-Board (4/4) Schematic Diagram ------------------ 47
13.6. A-Board (1/24) Schematic Diagram----------------- 48
13.7. A-Board (2/24) Schematic Diagram----------------- 49
13.8. A-Board (3/24) Schematic Diagram----------------- 50
13.9. A-Board (4/24) Schematic Diagram----------------- 51
13.2. P-Board (1/4) Schematic Diagram ------------------ 44
13.3. P-Board (2/4) Schematic Diagram ------------------ 45
13.4. P-Board (3/4) Schematic Diagram ------------------ 46
13.5. P-Board (4/4) Schematic Diagram ------------------ 47
13.6. A-Board (1/24) Schematic Diagram----------------- 48
13.7. A-Board (2/24) Schematic Diagram----------------- 49
13.8. A-Board (3/24) Schematic Diagram----------------- 50
13.9. A-Board (4/24) Schematic Diagram----------------- 51
13.10. A-Board (5/24) Schematic Diagram----------------- 52
13.11. A-Board (6/24) Schematic Diagram----------------- 53
13.12. A-Board (7/24) Schematic Diagram----------------- 54
13.13. A-Board (8/24) Schematic Diagram----------------- 55
13.14. A-Board (9/24) Schematic Diagram----------------- 56
13.15. A-Board (10/24) Schematic Diagram --------------- 57
13.16. A-Board (11/24) Schematic Diagram --------------- 58
13.17. A-Board (12/24) Schematic Diagram --------------- 59
13.18. A-Board (13/24) Schematic Diagram --------------- 60
13.19. A-Board (14/24) Schematic Diagram --------------- 61
13.20. A-Board (15/24) Schematic Diagram --------------- 62
13.21. A-Board (16/24) Schematic Diagram --------------- 63
13.22. A-Board (17/24) Schematic Diagram --------------- 64
13.23. A-Board (18/24) Schematic Diagram --------------- 65
13.24. A-Board (19/24) Schematic Diagram --------------- 66
13.25. A-Board (20/24) and K-Board Schematic
13.13. A-Board (8/24) Schematic Diagram----------------- 55
13.14. A-Board (9/24) Schematic Diagram----------------- 56
13.15. A-Board (10/24) Schematic Diagram --------------- 57
13.16. A-Board (11/24) Schematic Diagram --------------- 58
13.17. A-Board (12/24) Schematic Diagram --------------- 59
13.18. A-Board (13/24) Schematic Diagram --------------- 60
13.19. A-Board (14/24) Schematic Diagram --------------- 61
13.20. A-Board (15/24) Schematic Diagram --------------- 62
13.21. A-Board (16/24) Schematic Diagram --------------- 63
13.22. A-Board (17/24) Schematic Diagram --------------- 64
13.23. A-Board (18/24) Schematic Diagram --------------- 65
13.24. A-Board (19/24) Schematic Diagram --------------- 66
13.25. A-Board (20/24) and K-Board Schematic
Diagram ---------------------------------------------------- 67
13.26. A-Board (21/24) Schematic Diagram --------------- 68
13.27. A-Board (22/24) Schematic Diagram --------------- 69
13.28. A-Board (23/24) Schematic Diagram --------------- 70
13.29. A-Board (24/24) Schematic Diagram --------------- 71
13.30. C1-Board (1/2) Schematic Diagram ---------------- 72
13.31. C1-Board (2/2) Schematic Diagram ---------------- 73
13.32. C2-Board (1/2) Schematic Diagram ---------------- 74
13.33. C2-Board (2/2) Schematic Diagram ---------------- 75
13.34. SC-Board (1/4) Schematic Diagram ---------------- 76
13.35. SC-Board (2/4) Schematic Diagram ---------------- 77
13.36. SC-Board (3/4) Schematic Diagram ---------------- 78
13.37. SC-Board (4/4) Schematic Diagram ---------------- 79
13.38. SS-Board (1/2) Schematic Diagram ---------------- 80
13.39. SS-Board (2/2) and SS2-Board Schematic
13.27. A-Board (22/24) Schematic Diagram --------------- 69
13.28. A-Board (23/24) Schematic Diagram --------------- 70
13.29. A-Board (24/24) Schematic Diagram --------------- 71
13.30. C1-Board (1/2) Schematic Diagram ---------------- 72
13.31. C1-Board (2/2) Schematic Diagram ---------------- 73
13.32. C2-Board (1/2) Schematic Diagram ---------------- 74
13.33. C2-Board (2/2) Schematic Diagram ---------------- 75
13.34. SC-Board (1/4) Schematic Diagram ---------------- 76
13.35. SC-Board (2/4) Schematic Diagram ---------------- 77
13.36. SC-Board (3/4) Schematic Diagram ---------------- 78
13.37. SC-Board (4/4) Schematic Diagram ---------------- 79
13.38. SS-Board (1/2) Schematic Diagram ---------------- 80
13.39. SS-Board (2/2) and SS2-Board Schematic
Diagram ---------------------------------------------------- 81
14 Printed Circuit Board------------------------------------------ 82
14.1. P-Board ---------------------------------------------------- 82
14.2. K and SS2-Board ---------------------------------------- 85
14.3. A-Board ---------------------------------------------------- 86
14.4. C1-Board--------------------------------------------------- 88
14.5. C2-Board--------------------------------------------------- 89
14.6. SC-Board -------------------------------------------------- 90
14.7. SS-Board -------------------------------------------------- 92
14.2. K and SS2-Board ---------------------------------------- 85
14.3. A-Board ---------------------------------------------------- 86
14.4. C1-Board--------------------------------------------------- 88
14.5. C2-Board--------------------------------------------------- 89
14.6. SC-Board -------------------------------------------------- 90
14.7. SS-Board -------------------------------------------------- 92
15 Exploded View and Replacement Parts List----------- 94
15.1. Exploded View and Mechanical Replacement
Parts List --------------------------------------------------- 94
15.2. Electrical Replacement Parts List ------------------102
Click on the first or last page to see other TX-P42G20E / TX-P42G20ES / TX-PF42G20S / TX-PR42G20 service manuals if exist.