
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
Page
Page
2
KX-NT265X / KX-NT265X-B
Содержание KX-NT265X
Страница 14: ...KX NT265X KX NT265X B 14 ...
Страница 17: ...17 KX NT265X KX NT265X B ...
Страница 18: ...9 TROUBLESHOOTING GUIDE 9 1 NO OPERATION 18 KX NT265X KX NT265X B ...
Страница 19: ... Note Refer to waveform 1 3 and 6 in 17 4 WAVEFORM P 48 19 KX NT265X KX NT265X B ...
Страница 20: ...20 KX NT265X KX NT265X B ...
Страница 21: ...9 2 LCD DOES NOT OPERATE Note Refer to waveform 4 in 17 4 WAVEFORM P 48 21 KX NT265X KX NT265X B ...
Страница 22: ...9 3 HANDSET DOES NOT WORK Receive Send 22 KX NT265X KX NT265X B ...
Страница 23: ...9 4 HEADSET DOES NOT WORK Receive Send 23 KX NT265X KX NT265X B ...
Страница 24: ...9 5 SPEAKER PHONE DOES NOT WORK Receive Send 24 KX NT265X KX NT265X B ...
Страница 26: ...9 7 LED DOES NOT LIGHT Note Refer to waveform 13 in 17 4 WAVEFORM P 48 26 KX NT265X KX NT265X B ...
Страница 35: ...11 TERMINAL GUIDE OF ICs TRANSISTORS AND DIODES 35 KX NT265X KX NT265X B ...
Страница 37: ...13 CABINET AND ELECTRICAL PARTS LOCATION 37 KX NT265X KX NT265X B ...
Страница 38: ...14 ACCESSORIES AND PACKING MATERIALS 38 KX NT265X KX NT265X B ...
Страница 50: ...IC13 pin2 DATA IC13 pin3 CLK IC13 pin4 LCK 13 LED CIRCUIT 50 KX NT265X KX NT265X B ...