Table Of Contents - Panasonic KX-T7730X Service Manual

KX-T7730X
CONTENTS
1 INTRODUCTION
1.1. NOTE
1.2. FOR SERVICE TECHNICIANS
2 LOCATION OF CONTROLS
3 CONNECTION
4 DISASSEMBLY INSTRUCTIONS
5 IC DATA
6 BLOCK DIAGRAM
7 CIRCUIT OPERATIONS
7.1. KEY INPUT CONTROL CIRCUIT
7.2. LED CIRCUIT
7.3. DATA COMMUNICATION CIRCUIT
7.4. TONE GENERATION CIRCUIT
7.5. HANDSET CIRCUIT
7.6. SPEAKERPHONE CIRCUIT
8 TROUBLESHOOTING GUIDE
8.1. NO OPERATION
8.2. HANDSET TROUBLE
8.3. SPEAKER-PHONE TROUBLE
8.4. TONE DIAL TORUBLE
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3 8.5. THE ELECTRONIC VOLUME OF THE SPEAKER-PHONE
3 DOES NOT WORK
3 8.6. THE ELECTRONIC VOLUME OF HANDSET DOES NOT
4 WORK
5 9 TERMINAL GUIDE OF ICS, TRANSISTORS AND DIODES
6 10 HOW TO REPLACE THE FLAT PACKAGE IC
8 10.1. PREPARATION
10 10.2. FLAT PACKAGE IC REMOVE PROCEDURE
11 10.3. FLAT PACKAGE IC INSTALLATION PROCEDURE
11 10.4. BRIDGE MODIFICATION PROCEDURE
12 11 CABINET AND ELECTRICAL PARTS LOCATION
13 12 ACCESSORIES AND PACKING MATERIALS
14 13 REPLACEMENT PARTS LIST
15 13.1. CABINET AND ELECTRICAL PARTS
16 13.2. ACCESSORIES AND PACKING MATERIALS
18 13.3. MAIN BOARD PARTS
18 14 FOR THE SCHEMATIC DIAGRAM
19 15 SCHEMATIC DIAGRAM
20 16 PRINTED CIRCUIT BOARD (MAIN BOARD)
20 16.1. COMPONENT VIEW
16.2. BOTTOM VIEW
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