JVC MX-DVA9 Service Manual page 67

STK412-090 (IC701) : Operation amplifier
1.Terminal layout
STK412-000
1
2.Block diagram
R3
D2
TR1 TR2
TG6
R1 C1
C2
14
R4
TR3 TR4
R5
15
16
R6
TR5
TR7
D1
R2
STK402-040 (IC752) : Operation amplifier
1.Terminal layout
STK402-050
1
2.Block diagram
ch. 1 ch. 1
IN NF
1 2
18
13
R13
TR16
TR3 TR19
TR8 TR18
R14
TR10 TR20
R15
R16
TR17
R7
R17
12 9 8 11 10
15
ch. 1
Pre. ch 1 ch 1
N.C. +Vcc BIAS +VE -VE
3 4 5 6 7
TR41
18 17
D12
TR12 TR11
D41
C11 R11
C12
TR14 TR13
D51
TR15
TR51
R12
ch. 2
ch. 2 ch. 2 Pre.
+Vcc -Vcc +VE -VE -Vcc
SUB
8 9 10 11 12
MX-DVA9/MX-DVA9R
1
R41
Compartor
3
D42
D43
2
7
SUB
5
D53
D52
4
Compartor
R51
6
SUB ch. 2 ch. 2
GND NF IN
13 14 15
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