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11/12
8
F
E
D
C
B
A
8
7
6
FAX
SP1
FAX Speaker
UN67
1st Line Modular PCB
(J4)
J1400
1 2 3 4 5 6 7
J41L
1 2
2
1
J41DH
J41D
1 2
1 2 3 4 5 6 7
J3
J4
FAX 1st Line PCB
J1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
6
5
4
3
2
1
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
J4507
UN05
Main Controller PCB
7
6
5
4
L2S_MJB
L234S_MJB
J1402
8
1 2
3 4 5 6
COR10
8
1
2
J1401
(J4)
FC_USB_IN
GND
MONI_USB
L2S_FAX_Board
(J403)
J9
J5
1
2 3 4
1
2 3
GND
+12V
7
6
5
4
3
2
1
1 2
3 4 5 6
J4508
J4506
J4505
5
4
1193
3
2
UN69
(J4)
UN68
3
2
General Circuit Diagram
1
F
E
D
C
B
A
1
P.11
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Table of Contents
Troubleshooting
