Panasonic TH-42LF20U Service Manual

Also see for TH42LF20U - 42" HD LCD TV: Specifications Operating instructions Service manual Manual de instrucciones

© Panasonic Corporation 2010Unauthorized copying and distribution is a violationof law.Order Number MTNC100773CEFULL HD LCD DisplayModel No. TH-42LF20UModel No. TH-47LF20UTABLE OF CONTENTS PAGE PAGE1 Safety Precautions----------------------------------------------- 31.1. General Guidelines---------------------------------------- 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. Applicable signals ----------------------------------------- 64 Specifications ----------------------------------------------------- 85 Operating Instructions------------------------------------------ 96 Service Mode -----------------------------------------------------116.1. Service Menu Function (1) ----------------------------- 116.2. Service Menu Function (2) -----------------------------126.3. Service Mode Function (1) -----------------------------136.4. Service Mode Function (2) -----------------------------147 Troubleshooting Guide ----------------------------------------158 Disassembly and Assembly Instructions ---------------168.1. Flowchart for disassembly------------------------------168.2. Preparations -----------------------------------------------178.3. Pedestal (option) removal------------------------------ 178.4. Rear cover removal-------------------------------------- 178.5. Replacement method for main board and jackboard -------------------------------------------------------- 188.6. Replacement method for Power board ------------- 198.7. Replacement method for AC cord bracket -------- 198.8. Cabinet back removal (42 type) ---------------------- 208.9. Cabinet back removal (47 type) ---------------------- 208.10. When removing the cabinet back with theboard connected ----------------------------------------- 208.11. Replacement method for speakers ------------------ 208.12. Key SW board replacement --------------------------- 208.13. Connector board removal ------------------------------ 218.14. LCD panel replacement -------------------------------- 218.15. Replacement method for RC+LED board---------- 228.16. Cabinet front replacement ----------------------------- 228.17. Cabinet back replacement ----------------------------- 239 Block Diagram --------------------------------------------------- 259.1. Block (1 of 2) Diagram ---------------------------------- 25All manuals and user guides at all-guides.comall-guides.com