Table Of Contents - Panasonic KX-T7665AL Service Manual

KX-T7665AL / KX-T7665X
CONTENTS
1 ABOUT LEAD FREE SOLDER (PbF: Pb free)
1.1. SUGGESTED PbF SOLDER
1.2. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS
USED
2 FOR SERVICE TECHNICIANS
3 SPECIFICATIONS
4 LOCATION OF CONTROLS
5 CONNECTION
6 DISASSEMBLY INSTRUCTIONS
7 HOW TO REPLACE A FLAT PACKAGE IC
7.1. PREPARATION
7.2. PROCEDURE
7.3. REMOVING SOLDER FROM BETWEEN PINS
8 TROUBLESHOOTING GUIDE
8.1. NO OPERATION
8.2. LCD DOES NOT OPERATE
8.3. HANDSET DOES NOT WORK
8.4. SPEAKER-PHONE TROUBLE
8.5. DXDP-DPT DOES NOT WORK
9 BLOCK DIAGRAM
10 CIRCUIT OPERATIONS
10.1. KEY INPUT CONTROL CIRCUIT
10.2. LCD CONTROL CIRCUIT
Page
3 10.3. LED CIRCUIT
3 10.4. RESET CIRCUIT
10.5. POWER SUPPLY CIRCUIT
4 10.6. DATA COMMUNICATION
5 10.7. DXDP COMMUNICATION
5 10.8. ANALOG CIRCUIT
5 11 IC DATA
6 11.1. IC2
7 11.2. IC6
8 12 TERMINAL GUIDE OF ICs, TRANSISTORS AND DIODES
8 13 CABINET AND ELECTRICAL PARTS LOCATION
8 14 ACCESSORIES AND PACKING MATERIALS
8 15 REPLACEMENT PARTS LIST
9 15.1. CABINET AND ELECTRICAL PARTS
9 15.2. ACCESSORIES AND PACKING MATERIALS
10 15.3. MAIN BOARD PARTS
11 16 FOR THE SCHEMATIC DIAGRAM
12 17 SCHEMATIC DIAGRAM
13 18 WAVEFORM
14 19 PRINTED CIRCUIT BOARD (MAIN BOARD)
15 19.1. COMPONENT VIEW
15 19.2. BOTTOM VIEW
16
2
Page
17
18
18
19
20
21
23
23
25
26
27
28
29
29
29
29
31
32
34
37
37
38