Panasonic TH-P42U30G, Service Manual, Page: 2 / 109

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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--------------------------------------------------- 18
6.4. No Picture -------------------------------------------------- 19
6.5. Local screen failure-------------------------------------- 20
7 Disassembly and Assembly Instructions --------------- 21
7.1. Remove the Rear cover -------------------------------- 21
7.2. Remove the AC inlet ------------------------------------ 21
7.3. Remove the P-Board------------------------------------ 21
7.4. Remove the Side terminal cover --------------------- 21
7.5. Remove the Tuner unit --------------------------------- 21
7.6. Remove the A-Board------------------------------------ 22
7.7. Remove the Speakers ---------------------------------- 22
7.8. Remove the SN-Board---------------------------------- 22
7.9. Remove the SS-Board---------------------------------- 22
7.10. Remove the Stand bracket and the Hanger
metals ------------------------------------------------------- 23
7.11. Remove the Radiator plate ---------------------------- 23
7.12. Remove the C1-Board ---------------------------------- 23
7.13. Remove the C2-Board ---------------------------------- 23
7.14. Remove the Plasma panel section from the
Cabinet assy----------------------------------------------- 24
7.15. Remove the Attachment metal bottom-------------- 24
7.16. Remove the Attachment metal top------------------- 24
7.17. Remove the Glass holders ---------------------------- 25
7.18. Remove the K-Board------------------------------------ 25
7.19. Replace the Plasma panel ----------------------------- 25
8 Measurements and Adjustments -------------------------- 26
8.1. Adjustment------------------------------------------------- 26
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) --------------------------------------------------- 40
10.5. Wiring (4) -------------------------------------------------- 41
11 Schematic Diagram
12 Printed Circuit Board
13 Exploded View and Replacement Parts List