Panasonic KX-T7565X Service Manual ▷ View online
KX-T7565X
KX-T7565X-B
KX-T7565X-B
White Version
Black Version
(for Asia, Middle East Near, Latin America and Africa)
DIGITAL PROPRIETARY TELEPHONE
ORDER NO. KMS0008517C3
1
CAUTION
2
2
FOR SERVICE TECHNICIANS
2
3
LOCATION OF CONTROLS
3
4
DISASSEMBLY INSTRUCTION
4
4.1.
HOW TO REMOVE THE LOWER CABINET(Procedure 1)
4
4.2.
HOW TO REMOVE THE HOOK BUTTON(Procedure 1
ｮ
2)
4
4.3.
HOW TO REMOVE THE MAIN BOARDS(Procedure 1
ｮ
2
ｮ
3)
5
4.4.
HOW TO REMOVE THE LCD BLOCK(Procedure 1
ｮ
2
ｮ
3
ｮ
4)
5
5
IC DATA
6
5.1.
IC1
6
5.2.
IC2
8
6
HOW TO REPLACE THE FLAT PACKAGE IC
10
6.1.
PREPARATION
10
6.2.
FLAT PACKAGE IC REMOVE PROCEDURE
10
6.3.
FLAT PACKAGE IC INSTALLATION PROCEDURE
11
6.4.
BRIDGE MODIFICATION PROCEDURE
11
7
BLOCK DIAGRAM
12
8
CIRCUIT OPERATIONS
13
8.1.
KEY INPUT CONTROL CIRCUIT
13
8.2.
LCD CONTROL CIRCUIT
14
8.3.
LED CIRCUIT
15
8.4.
DATA COMMUNICATION CIRCUIT
16
8.5.
RESET CIRCUIT
17
8.6.
TONE GENERATION CIRCUIT
18
8.7.
HANDSET CIRCUIT
20
8.8.
SPEAKER-PHONE CIRCUIT
20
9
TROUBLE SHOOTING GUIDE
22
9.1.
NO OPERATION
22
9.2.
THE ELECTRONIC VOLUME OF THE SPEAKER-PHONE
DOES NOT WORK
23
9.3.
THE ELECTRONIC VOLUME OF THE HANDSET DOES
NOT WORK
23
9.4.
SPEAKER-PHONE TROUBLE
24
9.5.
TONE DIAL TROUBLE
24
9.6.
HANDSET TROUBLE
25
10 WAVEFORM
26
11 TERMINAL GUIDE OF IC
担
, TRANSISTORS AND DIODES
28
12 CABINET AND ELECTRICAL PARTS LOCATION
29
13 ACCESSORIES AND PACKING MATERIALS
30
14 REPLACEMENT PARTS LIST
31
14.1. CABINET AND ELECTRICAL PARTS
31
14.2. ACCESSORIES AND PACKING MATERIALS
31
14.3. MAIN BOARD PARTS
31
15 SCHMATIC DIAGRAM
35
16 PRINTED CIRCUIT BOARD (MAIN BOARD)
37
16.1. COMPONNENT VIEW
37
16.2. BOTTOM VIEW
38
CONTENTS
Page
Page
1 CAUTION
Note:
When you mention the serial number, write down all 11 digits.
The serial number may be found the label affixed to the bottom of the unit.
The serial number may be found the label affixed to the bottom of the unit.
2 FOR SERVICE TECHNICIANS
1. Note the following items when exchanging the LEDs (Ref. No. D100-107) of Main Board.
1) Do not reuse a LED which is removed from the P.C. Board.
2) Use a soldering iron (less than 15 W) for exchanging LED.
3) Do not heat the LED for more than 2 seconds.
4) Do not move the LED after soldering.
2) Use a soldering iron (less than 15 W) for exchanging LED.
3) Do not heat the LED for more than 2 seconds.
4) Do not move the LED after soldering.
2
KX-T7565X / KX-T7565X-B
3 LOCATION OF CONTROLS
3
KX-T7565X / KX-T7565X-B
4 DISASSEMBLY INSTRUCTION
4.1. HOW TO REMOVE THE LOWER CABINET
(Procedure 1)
(1) Remove the 5 screws A.
(2) Remove the lower cabinet.
(2) Remove the lower cabinet.
4.2. HOW TO REMOVE THE HOOK BUTTON
(Procedure 1
→
→
→
→
2)
(1) Remove the hook button.
4
KX-T7565X / KX-T7565X-B