Panasonic KX-TG5521RUB Service Manual

Contents

3KX-TG5521RUB/KX-TGA551RUBTABLE 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)--------------- 42.3. Discarding of P.C. Board--------------------------------- 53 Specifications ----------------------------------------------------- 64 Technical Descriptions ----------------------------------------- 74.1. Block Diagram (Base Unit) ------------------------------ 74.2. Circuit Operation (Base Unit) --------------------------- 84.3. Block Diagram (Handset)------------------------------- 114.4. Circuit Operation (Handset)----------------------------124.5. Circuit Operation (Charger Unit) ----------------------134.6. Signal Route -----------------------------------------------145 Location of Controls and Components ------------------166 Installation Instructions ---------------------------------------167 Operating Instructions-----------------------------------------167.1. For Service Hint-------------------------------------------168 Service Mode -----------------------------------------------------178.1. Engineering Mode ----------------------------------------178.2. Copying Phonebook Items when Repairing -------218.3. How to Clear User Setting------------------------------239 Troubleshooting Guide ----------------------------------------249.1. Troubleshooting Flowchart -----------------------------249.2. Troubleshooting by Symptom (Base Unit andCharger Unit) ----------------------------------------------369.3. Troubleshooting by Symptom (Handset) -----------4010 Disassembly and Assembly Instructions ---------------4410.1. Disassembly Instructions -------------------------------4410.2. How to Replace the Handset LCD -------------------4811 Measurements and Adjustments---------------------------4911.1. Equipment Required -------------------------------------4911.2. The Setting Method of JIG (Base Unit) -------------4911.3. Adjustment Standard (Base Unit)---------------------5111.4. Adjustment Standard (Charger Unit)-----------------5211.5. The Setting Method of JIG (Handset) ---------------5311.6. Adjustment Standard (Handset) ----------------------5511.7. Things to Do after Replacing IC or X'tal ------------5611.8. RF Specification-------------------------------------------5811.9. How to Check the Handset Speaker orReceiver ----------------------------------------------------5911.10. Frequency Table (MHz) ---------------------------------5912 Miscellaneous ----------------------------------------------------6012.1. How to Replace the Flat Package IC ----------------6012.2. How to Replace the Shield Case ---------------------6212.3. Terminal Guide of the ICs, Transistors, Diodesand Electrolytic Capacitors-----------------------------6413 Schematic Diagram ---------------------------------------------6513.1. For Schematic Diagram---------------------------------6513.2. Schematic Diagram (Base Unit) ----------------------6613.3. Schematic Diagram (Base Unit_Operation) -------6813.4. Schematic Diagram (Handset) ------------------------7013.5. Schematic Diagram (Charger Unit) ------------------7214 Printed Circuit Board-------------------------------------------7314.1. Circuit Board (Base Unit_Main) -----------------------7314.2. Circuit Board (Base Unit_Operation) ----------------7514.3. Circuit Board (Handset) ---------------------------------7714.4. Circuit Board (Charger Unit) ---------------------------7915 Exploded View and Replacement Parts List ----------- 8015.1. Cabinet and Electrical Parts (Base Unit) ----------- 8015.2. Cabinet and Electrical Parts (Handset)------------- 8115.3. Cabinet and Electrical Parts (Charger Unit) ------- 8215.4. Accessories------------------------------------------------ 8315.5. Replacement Part List ---------------------------------- 84