Panasonic KX-TS2388RUB, Service Manual

Page: 3 / 45

3
KX-TS2388RUB/KX-TS2388RUW/KX-TS2388CAB/KX-TS2388CAW/KX-TS2388UAB/KX-TS2388UAW
TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions ----------------------------------------------- 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---------------------------------------------- 7
4.2. Circuit Operation------------------------------------------- 8
5 Location of Controls and Components ------------------ 12
6 Installation Instructions --------------------------------------- 12
7 Operating Instructions ----------------------------------------- 12
7.1. For Service Hint-------------------------------------------12
8 Troubleshooting Guide ---------------------------------------- 13
8.1. Service Hints-----------------------------------------------13
8.2. Pulse Dialing Problems ---------------------------------13
8.3. Tone Dialing Problems ----------------------------------14
8.4. No Ringing Sound When Ring Signal is Input ----14
9 Disassembly and Assembly Instructions --------------- 15
9.1. Disassembly Instructions -------------------------------15
9.2. Assembly Instruction-------------------------------------17
10 Miscellaneous ---------------------------------------------------- 21
10.1. IC Block diagram -----------------------------------------21
10.2. How to Replace the Flat Package IC ----------------25
10.3. Terminal Guide of the ICs, Transistors and
Diodes -------------------------------------------------------27
11 Schematic Diagram --------------------------------------------- 28
11.1. For Schematic Diagram---------------------------------28
11.2. Schematic Diagram (Main)-----------------------------30
11.3. Schematic Diagram (Operation) ----------------------32
12 Printed Circuit Board ------------------------------------------- 35
12.1. Circuit Board (Main)--------------------------------------35
12.2. Circuit Board (Operation) -------------------------------37
13 Exploded View and Replacement Parts List ----------- 39
13.1. Cabinet and Electrical Parts ---------------------------39
13.2. Accessories -----------------------------------------------40
13.3. Replacement Part List-----------------------------------41