Pioneer PDR-L77 Service Manual page 65

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M56788FP (CD-R CORE ASSY : IC451)
• 5 Channel Actuator Driver
Block Diagram
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L 13942296513
Pin Function
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VBS1
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40
IN1-
37
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OUT1
36
VBS1
VM1(+)
34
CH1
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VM1(-)
35
VBS1
VM2(+)
32
CH2
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VM2(-)
31
30
OUT2
VBS1
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28
IN2-
27
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VREFO
22
VBS1
VREF
23
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VBS2
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41
VREG
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42
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BIAS
VBS1
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Low, Open
MUTE ON
1 - 4
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CH
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VBS2
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CH3
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9
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VBS2
VM4(+)
12
CH4
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13
VM4(-)
21 OUT4
VBS2
20 IN4-
19 IN4+
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VBS2
14
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CH5
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15
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PDR-L77
9 9
2 8
9 9
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l o
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s
t s i
r o
65

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