Panasonic TX-LR50B6, Service Manual

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© Panasonic Corporation 2013.
ORDER NO. MTV1301138CE
LCD TV
Model No.
TX-LR50B6
Chassis: KM21E
Destination: CIS
TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions ----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.1.1. Leakage Current Cold Check---------------------- 3
1.1.2. Leakage Current Hot Check (See Figure
1.) --------------------------------------------------------- 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
4 Specifications ----------------------------------------------------- 7
5 Service Mode ------------------------------------------------------ 8
5.1. How to enter into Service Modes ---------------------- 8
5.1.1. Contents of adjustment mode --------------------- 8
5.1.2. How to exit---------------------------------------------- 8
5.1.3. Display of SOS History ------------------------------ 9
5.1.4. POWER ON TIME/COUNT ------------------------ 9
5.1.5. Exit-------------------------------------------------------- 9
5.1.6. Self Check Mode-------------------------------------10
5.1.7. Hotel Mode Adjustment---------------------------- 10
5.1.8. Hotel Mode-------------------------------------------- 10
6 Troubleshooting Guide --------------------------------------- 11
6.1. Check of the IIC bus lines------------------------------ 11
6.1.1. How to access --------------------------------------- 11
6.1.2. Exit ------------------------------------------------------ 11
6.2. Power LED Blinking timing chart --------------------- 12
6.3. No Power--------------------------------------------------- 12
7 Disassembly and Assembly Instructions --------------- 13
7.1. Speaker Bracket ----------------------------------------- 13
7.2. LCD Panel Assembly ----------------------------------- 14
7.3. LCD Panel Fixing & Handling Method -------------- 15
7.4. LED Panel and Bracket Ass’y------------------------- 16
7.5. Vesa Metal ------------------------------------------------- 18
7.6. Side Metal Bracket--------------------------------------- 19
7.7. Metal Bracket 1 ------------------------------------------- 20
7.8. Metal Bracket 2 ------------------------------------------- 21
7.9. Metal Bracket Bottom ---------------------------------- 22
7.10. PCB Installation ------------------------------------------ 23
7.11. Pedestal Ass’y 1------------------------------------------ 24