Panasonic KX-TG7731S Service Manual

Also see for KX-TG7731S: Operating instructions

Contents

3KX-TG7731S/KX-TG7732S/KX-TG7733S/KX-TGA470STABLE OF CONTENTS PAGE PAGE1 Safety Precautions----------------------------------------------- 41.1. For Service Technicians --------------------------------- 42 Warning -------------------------------------------------------------- 42.1. Battery Caution--------------------------------------------- 42.2. About Lead Free Solder (PbF: Pb free)-------------- 52.3. Discarding of P. C. Board-------------------------------- 53 Specifications ----------------------------------------------------- 64 Technical Descriptions ----------------------------------------- 74.1. Circuit Configuration of TG773x SeriesPhones ------------------------------------------------------- 74.2. US-DECT Description ------------------------------------ 84.3. Block Diagram (Base Unit_Main)---------------------104.4. Tel Interface Circuit--------------------------------------- 114.5. Block Diagram (Base Unit_RF Part) -----------------124.6. Circuit Operation (Base Unit) --------------------------134.7. Block Diagram (Handset)-------------------------------204.8. Block Diagram (Handset_RF Part)-------------------214.9. Circuit Operation (Handset)----------------------------224.10. Circuit Operation (Charger Unit) ----------------------244.11. Signal Route -----------------------------------------------255 Location of Controls and Components ------------------276 Installation Instructions ---------------------------------------277 Operating Instructions-----------------------------------------278 Test Mode ----------------------------------------------------------288.1. Engineering Mode ----------------------------------------289 Service Mode -----------------------------------------------------329.1. How to Clear User Setting (Handset Only)---------3210 Troubleshooting Guide ----------------------------------------3310.1. Troubleshooting Flowchart -----------------------------3311 Disassembly and Assembly Instructions ---------------4911.1. Disassembly Instructions -------------------------------4911.2. How to Replace the Base Unit LCD -----------------5311.3. How to Replace the Handset LCD -------------------5512 Measurements and Adjustments---------------------------5612.1. Equipment Required -------------------------------------5612.2. The Setting Method of JIG -----------------------------5612.3. Adjustment Standard (Base Unit)---------------------6012.4. Adjustment Standard (Charger Unit)-----------------6112.5. Adjustment Standard (Handset) ----------------------6212.6. Things to Do after Replacing IC or X'tal ------------6312.7. Frequency Table ------------------------------------------6512.8. Bluetooth Frequency Table-----------------------------6613 Miscellaneous ----------------------------------------------------6713.1. How to Replace the LLP (Leadless LeadframePackage) IC------------------------------------------------6713.2. How to Replace the Flat Package IC ----------------6913.3. Terminal Guide of the ICs, Transistors andDiodes -------------------------------------------------------7114 Schematic Diagram ---------------------------------------------7214.1. For Schematic Diagram---------------------------------7214.2. Schematic Diagram (Base Unit_Main) --------------7414.3. Schematic Diagram (Base Unit_RF)-----------------7614.4. Schematic Diagram (Base Unit_Operation) -------7714.5. Schematic Diagram (Handset_Main) ----------------7814.6. Schematic Diagram (Charger Unit) -----------------8015 Printed Circuit Board-------------------------------------------8115.1. Circuit Board (Base Unit_Main) -----------------------8115.2. Circuit Board (Base Unit_Operation) ----------------8315.3. Circuit Board (Handset_Main) ------------------------ 8515.4. Circuit Board (Charger Unit)--------------------------- 8716 Exploded View and Replacement Parts List ----------- 8816.1. Cabinet and Electrical Parts (Base Unit) ----------- 8816.2. Cabinet and Electrical Parts (Handset)------------- 8916.3. Cabinet and Electrical Parts (Charger Unit) ------- 9016.4. Accessories and Packing Materials ----------------- 9116.5. Replacement Parts List--------------------------------- 95