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Aiwa TN-C137 Service Manual page 11

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WIRING-2 (HANDSET FRONT/ZENER C.B)
1
2
3
A
BUZZER
F
B
ZENER DIODE C. B
E
C
U901
D
14
12 10 8
1 3 5 7
D
C
B
E
A
1
2
3
1
2
3
F
A
B
G
C
1
3
5
H
7
D
9
11
13
E
I
F
J
4
5
6
HANDSET FRONT C. B
(PATTERN SIDE)
Q8
R12
R7
E
RED
C
B
C3
BLK
P5
U1
C13
B
Q6
C
P6
15
E
17
R6
E
R9
Q2
C
B
19
R8
21
R28
23
R25
25
28
1
Q5
C1
R3
B
R4
C
E
R2
C9
C4
R14
E B
C
Q4
R13
R20
C11
LED1
BATT.
LOW
4
5
6
7
8
4
5
6
7
8
HANDSET FRONT C. B
(TOP VIEW)
ZD1
C14
Q1
Q3
D5
C5
C10
D6
C
B
E
E
B
1
3
L1
C19
5
7
J2
9
D7
11
13
7
8
9
SW21
SW3
3
OFF
SW23
DEF
14
T
11
9
SW22
SW17
SW2
7
VOL
VOL
5
ABC
R5
3
SW18
R31
LED1
T
C7
SW1
SW16
C6
R18
1
TALK
9
10
11
12
SHIELD SHEET
9
10
11
12
LED2
TALK
LED2
C2
C
X1
D1
D2
D3
D4
11
10
11
12
13
SW6
SW9
SW19
SW20
SW12
6
9
MEMO/
MUTE
MNO
WXYZ
STORE
SW5
SW8
SW11
SW15
2
5
8
0
FLASH
JLK
TUV
SW4
SW7
SW10
SW14
SW13
4
7
REDIAL
CH
GHI
PQRS
TONE
/PAUSE
BATTERYPACK
Ni-Cd
13
14
15
16
17
13
14
15
16
17
BATT1
14
D8
D14
18
18

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