Sony IFB-12 Service Manual page 31

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1
2
A
B
C
D
E
(POWER)
IFB-12/12A
5
3
4
IFB-12
– A SIDE –
IFB-12 (OLD)
IFB-12 (OLD)
5
IFB-12 (OLD) BOARD
*: B SIDE
< DIODE >
< LED >
A
D1
*E-2
LD1
E-1
D3
*E-1
D4
*E-2
< TRANSISTOR >
D5
*C-1
D6
E-4
D7
C-2
Q1
*D-2
D8
C-2
Q2
E-3
D9
C-2
Q4
E-4
D10
B-2
Q5
E-1
D11
*D-2
Q6
E-1
D12
*D-3
Q7
E-1
D13
*D-4
Q8
E-2
B
D14
*D-5
Q9
*C-1
D15
*E-3
Q10
*C-2
D16
*E-4
Q11
C-2
D17
*E-5
Q13
B-2
D18
B-3
Q14
*C-2
D19
*A-4
Q15
C-2
Q16
*C-2
< IC >
Q17
*C-1
Q18
*D-2
IC1
*B-2
Q19
*D-4
IC2
B-3
Q20
*D-5
IC3
*B-3
Q21
*A-4
C
IC4
*C-1
Q22
*B-1
IC5
E-1
Q23
*B-2
IC6
D-2
Q24
*B-1
IC7
C-3
Q25
*B-2
IC8
C-4
Q26
*B-1
IC9
C-5
Q28
A-2
IC10
D-3
IC11
D-4
IC12
D-5
IC13
D-3
IC14
D-4
IC15
D-5
IC16
*D-3
D
IC17
*D-4
IC19
*B-3
IC20
*B-4
IC21
*B-5
IC22
C-3
IC23
A-2
IC24
A-1
IC25
*B-2
IC26
A-3
E
7-4
7-4
3
2
4
(IN/OUT SELECT)
IFB-12
1
– B SIDE –

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