Panasonic TH-49LS1K Service Manual

Panasonic TH-49LS1K Service Manual Manual pdf 2 page image

TH-49LS1K/T2TABLE OF CONTENTS PAGE PAGE1 Safety Precautions -----------------------------------------------31.1. General Guidelines ----------------------------------------31.1.1. Leakage Current Cold Check ----------------------31.1.2. Leakage Current Hot Check (See Figure 1.) ----- 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. Service Hint--------------------------------------------------64 Specifications ------------------------------------------------------75 Service Mode -------------------------------------------------------95.1. How to enter into Service Mode ------------------------95.1.1. Purpose --------------------------------------------------95.1.2. Key command ------------------------------------------95.1.3. How to exit ----------------------------------------------95.1.4. Contents of adjustment mode ----------------------95.1.5. Display of SOS History----------------------------- 105.1.6. Exit ------------------------------------------------------ 105.1.7. Hotel Mode-------------------------------------------- 106 Troubleshooting Guide---------------------------------------- 116.1. Check of the IIC bus lines------------------------------ 116.1.1. How to access---------------------------------------- 116.1.2. Self-check indication only ------------------------- 116.1.3. Self-check indication and forced to factoryshipment setting ------------------------------------- 116.1.4. Exit ------------------------------------------------------ 116.1.5. Screen display --------------------------------------- 116.2. Power LED Blinking timing chart --------------------- 126.3. Method of detecting SOS ------------------------------ 126.4. LCD Panel test mode ----------------------------------- 136.5. No Power--------------------------------------------------- 137 Disassembly and Assembly Instructions --------------- 147.1. Key Button & LED Assembly -------------------------- 147.2. VESA Metal & Btm Back Cover ---------------------- 157.3. Bottom Metal & Bottom Corner Cover -------------- 167.4. Corner Cover (1/2) --------------------------------------- 177.5. Corner Cover (2/2) --------------------------------------- 187.6. LED Installation ------------------------------------------- 197.7. Screw Installation (Panel) ------------------------------ 207.8. Screw Installation (Back Cover) ---------------------- 217.9. Gap Spec--------------------------------------------------- 227.10. Label Installation ----------------------------------------- 237.11. Handling SPEC ------------------------------------------- 248 Measurements and Adjustments -------------------------- 258.1. Voltage chart of A-board-------------------------------- 258.2. Voltage chart of P-board-------------------------------- 259 Block Diagram --------------------------------------------------- 269.1. Main Block Diagram ------------------------------------- 269.2. i-LED Block Diagram ------------------------------------ 2710 Wiring Connection Diagram --------------------------------- 2810.1. Wire Dressing (1/3) -------------------------------------- 2810.2. Wire Dressing (2/3) -------------------------------------- 2910.3. Wire Dressing (3/3) -------------------------------------- 3011 Schematic Diagram--------------------------------------------- 3112 Printed Circuit Board ------------------------------------------ 3213 Exploded View and Replacement Parts List ----------- 33