Panasonic KX-NT265X, Service Manual

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1 ABOUT LEAD FREE SOLDER (PbF: Pb free) 3
1.1. SUGGESTED PbF SOLDER 3
1.2. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS
USED 4
2 FOR SERVICE TECHNICIANS 4
3 SPECIFICATIONS 5
4 LOCATION OF CONTROLS 6
5 CONNECTION 7
5.1. OPTIONAL ACCESORY 7
6 DISASSEMBLY INSTRUCTIONS 8
7 BLOCK DIAGRAM 10
8 CIRCUIT OPERATIONS 11
8.1. VoIP BLOCK 11
8.2. LCD CIRCUIT 11
8.3. RESET CIRCUIT 11
8.4. Ethernet CIRCUIT 12
8.5. POWER SUPPLY CIRCUIT 13
8.6. ANALOG CIRCUIT 15
8.7. KEY INPUT CONTROL CIRCUIT 16
8.8. LED CIRCUIT 16
9 TROUBLESHOOTING GUIDE 18
9.1. NO OPERATION 18
9.2. LCD DOES NOT OPERATE 21
9.3. HANDSET DOES NOT WORK 22
9.4. HEADSET DOES NOT WORK 23
9.5. SPEAKER-PHONE DOES NOT WORK 24
9.6. Ethernet DOES NOT WORK (Ethernet PORT) 25
9.7. LED DOES NOT LIGHT 26
10 IC DATA 28
10.1. IC1 (VoIP) 28
10.2. IC2 (Ethernet) 32
10.3. IC5 (DC-DC Convertor) 33
10.4. IC6 (PoE Interface Controller) 34
11 TERMINAL GUIDE OF ICs, TRANSISTORS AND DIODES 35
12 HOW TO REPLACE A FLAT PACKAGE IC 36
12.1. PREPARATION 36
12.2. REMOVAL PROCEDURE 36
12.3. INSTALLATION PROCEDURE 36
12.4. REMOVING SOLDER FROM BETWEEN PINS 36
13 CABINET AND ELECTRICAL PARTS LOCATION 37
14 ACCESSORIES AND PACKING MATERIALS 38
15 REPLACEMENT PARTS LIST 39
15.1. CABINET AND ELECTRICAL PARTS 39
15.2. ACCESSORIES AND PACKING MATERIALS 39
15.3. MAIN BOARD PARTS 40
15.4. OPTION 43
16 FOR THE SCHEMATIC DIAGRAM 43
17 SCHEMATIC DIAGRAM 44
17.1. VoIP/LCD block 44
17.2. Ethernet/Power block 46
17.3. ANALOG/KEY/LED block 47
17.4. WAVEFORM 48
18 PRINTED CIRCUIT BOARD 51
18.1. MAIN BOARD : COMPONENT VIEW 51
18.2. MAIN BOARD : BOTTOM VIEW 52
CONTENTS
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KX-NT265X / KX-NT265X-B