Panasonic KX-T2373MXW, Service Manual

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1 LOCATION OF CONTROLS 3
2 CONNECTION 4
2.1. Connecting the Handset/Telephone Line Cord 4
2.2. Connecting a Communication Device 4
3 SETTINGS 5
3.1. Selecting the Dialing Mode 5
3.2. Selecting the Ringer Volume 5
4 SPECIAL FEATURES 6
4.1. FLASH Button 6
4.2. Selecting the Flash Time 6
4.3. Setting the Pin Code 7
4.4. Dial Lock 8
4.5. Call Restriction 9
4.6. To cancel the call restriction 9
4.7. How to Release the Establishment of Dial Lock 10
5 DISASSEMBLY INSTRUCTIONS 11
6 HOW TO REPLACE FLAT PACKAGE IC 12
6.1. Preparation 12
6.2. Procedure 12
6.3. Modification Procedure of Bridge 12
7 CPU DATA 13
7.1. IC801 13
7.2. Speakerphone IC Data 14
8 TERMINAL GUIDE OF IC
S
TRANSISTORS AND DIODES 15
9 BLOCK DIAGRAM 16
10 BLOCK DIAGRAM (IC 1) 17
10.1. Communication ICs 17
11 CIRCUIT OPERATION 18
11.1. Bell Detector Circuit 18
11.2. Line Interface 18
11.3. MODULE BLOCK DIAGRAM 19
12 TROUBLE SHOOTING GUIDE 23
12.1. Service Hints 23
12.2. Pulse Dialing Problems 23
12.3. Tone Dialing Problems (Hnadset) 24
12.4. No Ringing Sound When Ring Signal is Input. 24
13 CABINET AND ELECTRICAL PARTS LOCATION 25
14 ACCESSORY AND PACKING MATERIALS 26
15 REPLACEMENT PARTS LIST 27
15.1. Base Unit 27
15.2. ACCESSORIES AND PACKING MATERIALS 29
16 FOR SCHEMATIC DIAGRAM (SCHEMATIC DIAGRAM) 30
16.1. MEMO 31
17 SCHEMATIC DIAGRAM 32
18 CIRCUIT BOARD AND WIRING CONNECTION DIAGRAM 35
18.1. Component Vie 35
18.2. Flow Solder Side View 36
CONTENTS
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KX-T2373MXW