Panasonic TH-P42A20M Service Manual

Also see for VIERA TH-P42A20M: Operating instructions Service manual

2TABLE OF CONTENTS PAGE PAGE1 Safety Precautions -----------------------------------------------31.1. General Guidelines ----------------------------------------31.2. Touch-Current Check--------------------------------------32 Warning --------------------------------------------------------------42.1. Prevention of Electrostatic Discharge (ESD)to Electrostatically Sensitive (ES) Devices ----------42.2. About lead free solder (PbF) ----------------------------53 Service Navigation------------------------------------------------63.1. PCB Layout --------------------------------------------------63.2. Applicable signals ------------------------------------------74 Specifications ------------------------------------------------------85 Service Mode ----------------------------------------------------- 105.1. How to enter into Service Mode ---------------------- 105.2. Option - Mirror--------------------------------------------- 125.3. Service tool mode ---------------------------------------- 125.4. Hotel mode------------------------------------------------- 135.5. Data Copy by SD Card --------------------------------- 146 Troubleshooting Guide---------------------------------------- 176.1. Check of the IIC bus lines------------------------------ 176.2. Power LED Blinking timing chart --------------------- 186.3. No Power--------------------------------------------------- 196.4. No Picture -------------------------------------------------- 206.5. Local screen failure -------------------------------------- 217 Disassembly and Assembly Instructions --------------- 227.1. Remove the Rear cover -------------------------------- 227.2. Remove the AC inlet ------------------------------------ 227.3. Remove the P-Board ------------------------------------ 227.4. Remove the Side terminal cover and the Sideshield metal ------------------------------------------------ 227.5. Remove the Tuner unit --------------------------------- 237.6. Remove the A-Board ------------------------------------ 237.7. Remove the Speakers ---------------------------------- 237.8. Remove the SN-Board---------------------------------- 237.9. Remove the SS-Board ---------------------------------- 247.10. Remove the Hanger metals and the Standbrackets----------------------------------------------------- 247.11. Remove the C1-Board ---------------------------------- 247.12. Remove the C2-Board ---------------------------------- 247.13. Remove the Plasma panel section from theCabinet assy (glass)------------------------------------- 257.14. Remove the Glass holders ---------------------------- 257.15. Remove the K-Board ------------------------------------ 257.16. Replace the plasma panel ----------------------------- 268 Measurements and Adjustments -------------------------- 278.1. Adjustment ------------------------------------------------- 279 Block Diagram --------------------------------------------------- 319.1. Main Block Diagram ------------------------------------- 319.2. Block (1/4) Diagram ------------------------------------- 329.3. Block (2/4) Diagram ------------------------------------- 339.4. Block (3/4) Diagram ------------------------------------- 349.5. Block (4/4) Diagram ------------------------------------- 3510 Wiring Connection Diagram --------------------------------- 3710.1. Caution statement.--------------------------------------- 3710.2. Wiring (1) --------------------------------------------------- 3710.3. Wiring (2) --------------------------------------------------- 3810.4. Wiring (3) --------------------------------------------------- 3810.5. Wiring (4) --------------------------------------------------- 3911 Schematic Diagram--------------------------------------------- 4111.1. Schematic Diagram Note ------------------------------ 4111.2. P-Board (1/4) Schematic Diagram ------------------ 4211.3. P-Board (2/4) Schematic Diagram ------------------ 4311.4. P-Board (3/4) Schematic Diagram ------------------ 4411.5. P-Board (4/4) Schematic Diagram ------------------ 4511.6. A-Board (1/13) Schematic Diagram----------------- 4611.7. A-Board (2/13) Schematic Diagram----------------- 4711.8. A-Board (3/13) Schematic Diagram----------------- 4811.9. A-Board (4/13) Schematic Diagram----------------- 4911.10. A-Board (5/13) Schematic Diagram----------------- 5011.11. A-Board (6/13) Schematic Diagram----------------- 5111.12. A-Board (7/13) Schematic Diagram----------------- 5211.13. A-Board (8/13) Schematic Diagram----------------- 5311.14. A-Board (9/13) Schematic Diagram----------------- 5411.15. A-Board (10/13) and K-Board SchematicDiagram ---------------------------------------------------- 5511.16. A-Board (11/13) Schematic Diagram --------------- 5611.17. A-Board (12/13) Schematic Diagram --------------- 5711.18. A-Board (13/13) Schematic Diagram --------------- 5811.19. C1-Board Schematic Diagram ----------------------- 5911.20. C2-Board Schematic Diagram ----------------------- 6011.21. SN-Board (1/9) Schematic Diagram ---------------- 6111.22. SN-Board (2/9) Schematic Diagram ---------------- 6211.23. SN-Board (3/9) Schematic Diagram ---------------- 6311.24. SN-Board (4/9) Schematic Diagram ---------------- 6411.25. SN-Board (5/9) Schematic Diagram ---------------- 6511.26. SN-Board (6/9) Schematic Diagram ---------------- 6611.27. SN-Board (7/9) Schematic Diagram ---------------- 6711.28. SN-Board (8/9) Schematic Diagram ---------------- 6811.29. SN-Board (9/9) Schematic Diagram ---------------- 6911.30. SS-Board (1/2) Schematic Diagram ---------------- 7011.31. SS-Board (2/2) Schematic Diagram ---------------- 7112 Printed Circuit Board------------------------------------------ 7212.1. P-Board ---------------------------------------------------- 7212.2. K-Board ---------------------------------------------------- 7512.3. A-Board ---------------------------------------------------- 7612.4. C1-Board--------------------------------------------------- 7812.5. C2-Board--------------------------------------------------- 7912.6. SN-Board -------------------------------------------------- 8012.7. SS-Board -------------------------------------------------- 8213 Exploded View and Replacement Parts List----------- 8513.1. Exploded View and Mechanical ReplacementParts List --------------------------------------------------- 8513.2. Electrical Replacement Parts List ------------------- 92