JVC KD-SX985 Service Manual page 31

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3.Pin function
Pin No. Symbol
1
VIN1-A
2
VIN1+A
3
VCCP1
4
VO1+
5
VO1-
6
VO2+
7
VO2-
8
VO3+
9
VO3-
10
VO4+
11
VO4-
12
VCCP2
13
VIN4
14
VIN4G
15
VIN3
16
VIN3G
17
VIN2
18
VIN2G
19
REGIN
20
3.3VREG
21
VCCS
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22
VREFIN
23
MUTE
24
VIN1_SW
25
S_GND
26
VIN1+B
27
VIN1-B
28
VIN1
NJM4565V-X (IC572) : Dual ope amp
1.Terminal layout & Pin function
1
A
2
-
3
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CH1 input AMP_inverted input
CH1 input AMP_non-inverted input
CH1 and CH2 power stage power supply
Output pin(+)for channel 1
CH1 output pin (-) for channel 1
Output pin(+)for channel 2
Output pin(-)for channel 2
Output pin(+)for channel 3
Output pin(-)for channel 3
Output pin(+)for channel 4
Output pin(-)for channel 4
CH3 and CH4 power stage powr supply
Input pin for channel 4
Input pin for channel 4(for gain adjustment)
Input pin for channel 3
Input pin for channel 3(for gain adjustment)
Input pin for channel 2
Input pin for channel 2(for gain adjustment)
External PNP transistor, base connection
3.3VREG output pin, external PNP transistor,collector connection
Signal system GND
Reference voltage application pin
Output ON/OFF pin
CH1 input OP AMP_changeover pin
Signal system GND
CH1 AMP_B non-inverted input pin
CH1 AMP_B inverted input pin
CH1 input pin, input OP_AMP output pin
8
+ 7
B
+
6
-
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8
Function
Q Q
3 6 7 1 3 1 5
1 AOUTPUT
2 A-INPUT
3 A+INPUT
4 V
5 B+INPUT
6 B-INPUT
7 B OUTPUT
8 V
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9 4 2 8
0 5 8 2 9 9 4 2 8
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KD-SX985
9 9
9 9
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