Panasonic KX-TS620BX1, Service Manual

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3
KX-TS620BX1
TABLE OF CONTENTS
PAGE PAGE
1 Safety Precaution ------------------------------------------------ 4
1.1. For Service Technicians --------------------------------- 4
2 Warning -------------------------------------------------------------- 4
2.1. Battery Caution--------------------------------------------- 4
2.2. About Lead Free Solder (Pbf: Pb free)--------------- 4
2.3. Discarding of P. C. Board-------------------------------- 5
3 Specifications ----------------------------------------------------- 6
4 Technical Descriptions ----------------------------------------- 7
4.1. Block Diagram (Base Unit) ------------------------------ 7
4.2. Circuit Operation (Base Unit) --------------------------- 8
4.3. Ringer IC----------------------------------------------------10
4.4. Module Block Diagram ----------------------------------11
4.5. Signal Route -----------------------------------------------12
5 Location of Controls and Components ------------------ 13
6 Installation Instructions --------------------------------------- 13
7 Operating Instructions ----------------------------------------- 13
7.1. For Service Hint-------------------------------------------13
8 Troubleshooting Guide ---------------------------------------- 14
8.1. Troubleshooting Guide ----------------------------------14
9 Disassembly and Assembly Instructions --------------- 21
9.1. Disassembly Instructions -------------------------------21
10 Miscellaneous ---------------------------------------------------- 22
10.1. How to Replace the Flat Package IC ----------------22
10.2. How to Remove the IC ----------------------------------22
10.3. How to Install the IC -------------------------------------23
10.4. How to Remove a Solder Bridge ---------------------23
10.5. Terminal Guide of the Ics, Transistor and
Diodes -------------------------------------------------------24
11 Schematic Diagram --------------------------------------------- 25
11.1. For Schematic Diagram---------------------------------25
11.2. Schematic Diagram (Main)-----------------------------26
11.3. Schematic Diagram (Operation) ----------------------28
12 Printed Circuit Board ------------------------------------------- 29
12.1. Circuit Board (Main)--------------------------------------29
12.2. Circuit Board (Operation) -------------------------------31
13 Exploded View and Replacement Parts List ----------- 33
13.1. Cabinet and Electric Parts -----------------------------33
13.2. Accessories and Packing Materials------------------34
13.3. Replacement Part List-----------------------------------35