Panasonic KX-AT7730RU (serv.man2) Service Manual ▷ View online
29
KX-AT7730 Series
11.2. BOTTOM VIEW
MAIN BOARD (BOTTOM VIEW)
SW29
SW30
SW31
SW11
SW12
SW13
SW14
SW15
SW16
SW17
SW18
SW19
SW20
SW21
SW22
SW23
SW24
SW25
SW26
SW27
SW28
SW29
SW30
SW31
SW32
SW33
SW34
SW35
SW36
SW37
SW38
SW39
SW40
SW41
SW42
SW43
SW44
SW45
SW46
SW47
SW48
SW49
SW50
SW51
SW52
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
D24
D25
D26
D27
D28
D29
R144
R90
HOOK SW
INTERCOM
FLASH
AUTO ANS
MUTE
HIGH-LOW-OFF
3
2
1
4
CONF
AUTO DIAL
1
2
4
5
7
8
0
1
7
CN8
REDIAL
HOLD
SP-PHONE
REF1
9
6
3
STORE
TRANSFER
PAUSE
FWD/DND
PROGRAM
MESSAGE
CO11
CO10
CO9
CO8
CO7
CO6
CO5
CO4
CO3
CO2
CO1
CO12
L6
L7
30
12 Appendix Information of Schematic Diagram
Note:
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
31
13 Exploded View and Replacement Parts List
13.1. CABINET AND ELECTRICAL PARTS LOCATION
SCREW
1
6
7
8
9
11
10
3
5
4
21
2
A
A
A
A
A
A
A
A
A
A
15
20
19
16
PCB1
17
18
22
A4
22
22
22
12
13
14
A
Ref. No.
Figure
Part No.
XTW3+10PFJ7
32
KX-AT7730 Series
13.2. ACCESSORIES AND PACKING MATERIALS
P2
A2
A1
A4
P1
P3
A3
A5 (RU only)
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