Table Of Contents - Panasonic TH-47LFX6U Service Manual

TH-47LFX6U/TH-47LFX6W

TABLE OF CONTENTS

1 Safety Precautions -----------------------------------------------3
1.1. General Guidelines ----------------------------------------3
1.2. Leakage Current Check (for TH-47LFX6U) ---------3
1.3. Touch-Current Check (for TH-47LFX6W) ------------4
2 Warning --------------------------------------------------------------5
2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices ----------5
2.2. About lead free solder (PbF) ----------------------------6
2.3. Precautions for Installation-------------------------------7
3 Service Navigation------------------------------------------------9
3.1. Service Hint--------------------------------------------------9
3.2. Applicable signals ---------------------------------------- 10
4 Specifications ---------------------------------------------------- 11
5 Service Mode ----------------------------------------------------- 12
5.1. CAT (Computer Aided Test) mode ------------------- 12
5.2. IIC mode structure (following items value is
sample data)----------------------------------------------- 17
6 Troubleshooting Guide---------------------------------------- 19
6.1. Self Check ------------------------------------------------- 19
6.2. No Power--------------------------------------------------- 21
6.3. No Picture -------------------------------------------------- 21
7 Disassembly and Assembly Instructions --------------- 22
7.1. SERVICE INSTRUCTIONS --------------------------- 22
7.2. PCB Layout ------------------------------------------------ 23
7.3. Preparation ------------------------------------------------ 24
7.4. About disassembly and replacement --------------- 24
7.5. Rear Plate Removal ------------------------------------- 24
7.6. Attachment Bracket Replacement ------------------- 27
7.7. Fan Cover BTM B Assy and Fan Sponge
Replacement ---------------------------------------------- 27
7.8. Fan Cover BTM C Assy Replacement -------------- 27
7.9. A-Board Replacement ---------------------------------- 28
7.10. P-Board Replacement ---------------------------------- 29
7.11. Key Button and V2-Board Replacement ----------- 29
7.12. Temperature Sensor Board (TS) and Wind
Sensor Replacement ------------------------------------ 30
7.13. Inlet Assy Replacement -------------------------------- 31
7.14. Fan Replacement ---------------------------------------- 31
7.15. DC Fan Replacement ----------------------------------- 32
7.16. Front Frame Assy Replacement --------------------- 32
7.17. Rear Frame Assy Replacement ---------------------- 33
7.18. Rear Frame Assy Removal ---------------------------- 35
7.19. Panel Holder Top Assy Replacement --------------- 36
7.20. Panel Holder Bottom Assy Replacement ---------- 37
7.21. Panel Holder L/R Assy Removal --------------------- 38
7.22. V1-Board Replacement--------------------------------- 39
7.23. LCD Panel Replacement ------------------------------- 39
8 Block Diagram --------------------------------------------------- 43
8.1. Diagram Notes -------------------------------------------- 43
8.2. Main Block Diagram ------------------------------------- 44
8.3. Block (1 of 3) Diagram ---------------------------------- 45
8.4. Block (2 of 3) Diagram ---------------------------------- 46
8.5. Block (3 of 3) Diagram ---------------------------------- 47
9 Wiring Connection Diagram --------------------------------- 49
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