TH-47LF6W, TH-47LF60W - Panasonic TV Service Manual (repair manual). Page 2

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TH-47LF6W_TH-47LF60W

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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

3 Service Navigation------------------------------------------------5

3.1. Service Hint--------------------------------------------------5
3.2. Applicable signals ------------------------------------------6

4 Specifications ------------------------------------------------------8
5 Service Mode -------------------------------------------------------9

5.1. CAT (Computer Aided Test) mode ---------------------9
5.2. IIC mode structure (following items value is

sample data)----------------------------------------------- 14

6 Troubleshooting Guide---------------------------------------- 15

6.1. Self Check ------------------------------------------------- 15
6.2. No Power--------------------------------------------------- 20
6.3. No Display ------------------------------------------------- 21
6.4. Abnormal Display ---------------------------------------- 22

7 Disassembly and Assembly Instructions --------------- 23

7.1. PCB Layout ------------------------------------------------ 23
7.2. Preparation ------------------------------------------------ 23
7.3. About disassembly and replacement --------------- 23
7.4. Back Cover removal ------------------------------------- 24
7.5. A-Board replacement------------------------------------ 25
7.6. P-Board replacement------------------------------------ 26
7.7. AC Inlet replacement ------------------------------------ 26
7.8. FR-Board and FR-Board Fixing Metal TOP/

BTM replacement ---------------------------------------- 27

7.9. GK-Board and Key Cover and Key Pad

replacement ----------------------------------------------- 28

7.10. Speaker and Stand bracket L/R replacement ----- 29

7.11. K-Board, LED Panel and LED Panel Case

replacement ----------------------------------------------- 30

7.12. Cabinet fixing Metal Top/Left/Right/Bottom

Left/Bottom Right replacement ----------------------- 31

7.13. LCD Panel replacement -------------------------------- 32
7.14. Caution about the sticking parts of LCD Panel --- 34

8 Block Diagram --------------------------------------------------- 36

8.1. Main Block Diagram ------------------------------------- 36
8.2. Power Board----------------------------------------------- 37

9 Wiring Connection Diagram --------------------------------- 38

9.1. Wiring Connection Diagram --------------------------- 38

10 Exploded View and Replacement Parts List ----------- 39

10.1. Exploded View -------------------------------------------- 39
10.2. Replacement Parts List --------------------------------- 40