Panasonic KX-DT543-B Service Manual

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Panasonic KX-DT543-B Service Manual Manual pdf 2 page image

2KX-DT543/KX-DT543-B/KX-DT546/KX-DT546-BTABLE OF CONTENTS PAGE PAGE1 Safety Precautions -----------------------------------------------31.1. For Service Technicians ---------------------------------32 Warning --------------------------------------------------------------42.1. About Lead Free Solder (PbF: Pb free) --------------42.1.1. Suggested PbF Solder -------------------------------42.2. Discarding of P. C. Board --------------------------------43 Specifications ------------------------------------------------------54 Technical Descriptions------------------------------------------64.1. Block Diagram ----------------------------------------------64.2. Circuit Operations ------------------------------------------74.2.1. LCD Circuit----------------------------------------------74.2.2. Reset Circuit --------------------------------------------74.2.3. Data Communication ---------------------------------84.2.4. DXDP Communication -------------------------------94.2.5. Analog Circuit ---------------------------------------- 104.2.6. ASIC (IC300) ----------------------------------------- 114.2.7. ASIC (IC150) ----------------------------------------- 124.2.8. Key Circuit--------------------------------------------- 134.2.9. LED Circuit -------------------------------------------- 144.2.10. EHS Circuit-------------------------------------------- 154.2.11. Power Supply Circuit ------------------------------- 165 Location of Controls and Components------------------ 175.1. Name and Locations ------------------------------------ 176 Installation Instructions--------------------------------------- 186.1. Connections ----------------------------------------------- 187 Test Mode---------------------------------------------------------- 197.1. Function Test Mode-------------------------------------- 197.1.1. Preparation-------------------------------------------- 197.1.2. KEYs and LEDs Test ------------------------------- 198 Troubleshooting Guide---------------------------------------- 208.1. No Operation ---------------------------------------------- 208.2. ASIC1(IC300) Does Not Operate -------------------- 268.3. LCD Does Not Operate --------------------------------- 278.4. DXDP Does Not Work ---------------------------------- 288.5. Audio Problem -------------------------------------------- 298.6. Handset Does Not Work-------------------------------- 298.6.1. Receive ------------------------------------------------ 298.6.2. Send ---------------------------------------------------- 308.7. Headset Does Not Work-------------------------------- 318.7.1. Receive ------------------------------------------------ 318.7.2. Send ---------------------------------------------------- 328.8. Speaker-Phone/Ringer Does Not Work ------------ 338.8.1. Receive / Ringer ------------------------------------- 338.8.2. Send ---------------------------------------------------- 338.9. LED Does Not Light ------------------------------------- 348.10. EHS Does Not Work------------------------------------- 358.10.1. EHS (Plantronics) Does Not Work ------------- 358.10.2. EHS (Jabra) Does Not Work --------------------- 369 Disassembly and Assembly Instructions --------------- 379.1. Remove Main Board and Ope Board --------------- 379.2. Remove and Assembly for LCD -------------------- 389.3. Assembly for Lead wire--------------------------------- 3910 Miscellaneous ---------------------------------------------------- 4110.1. Terminal Guide of the ICs Transistors andDiodes------------------------------------------------------- 4110.1.1. Main Board-------------------------------------------- 4110.1.2. Operation Board ------------------------------------- 4110.2. How To Replace a Flat Package IC ----------------- 4210.2.1. Preparation ------------------------------------------- 4210.2.2. Removal Procedure -------------------------------- 4210.2.3. Procedure--------------------------------------------- 4210.2.4. Removing Solder From Between Pins--------- 4210.2.5. Memo -------------------------------------------------- 4311 Schematic Diagram -------------------------------------------- 4411.1. Main No.1-------------------------------------------------- 4411.2. Main No.2-------------------------------------------------- 4611.3. Ope---------------------------------------------------------- 4811.4. Waveform-------------------------------------------------- 5011.4.1. No.(1)-(6)---------------------------------------------- 5011.4.2. No.(7)-(10) ------------------------------------------- 5111.4.3. No.(11)-(12)------------------------------------------- 5211.4.4. No.(13)-(15) ------------------------------------------ 5311.4.5. No.(16)-(17) ------------------------------------------ 5411.4.6. No.(18)-(21) ------------------------------------------ 5511.4.7. Memo -------------------------------------------------- 5612 Printed Circuit Board------------------------------------------ 5712.1. Main Board ------------------------------------------------ 5712.1.1. Component View ------------------------------------ 5712.1.2. Bottom View ------------------------------------------ 5812.2. Operation Board ----------------------------------------- 5912.2.1. Component View ------------------------------------ 5912.2.2. MIC Board Component View--------------------- 6013 Appendix Information of Schematic Diagram -------- 6114 Exploded View and Replacement Parts List----------- 6214.1. IC Data ----------------------------------------------------- 6214.1.1. IC410--------------------------------------------------- 6214.1.2. IC300--------------------------------------------------- 6514.1.3. IC150--------------------------------------------------- 6614.2. Cabinet and Electric Parts----------------------------- 6714.3. Accessories and Packing Materials----------------- 6814.4. Replacement Parts List -------------------------------- 6914.4.1. Cabinet and Electrical Parts---------------------- 6914.4.2. Accessories and Packing Materials ------------ 7014.4.3. Main Board Parts ----------------------------------- 7014.4.4. Ope Board Parts ------------------------------------ 72