JVC RX-7030VBK Service Manual page 27

4.11 MM1563DF-X (IC506,IC583) : Regulator
• Pin layout
7
(TOP VIEW)
1
• Block diagram
• Pin function
Pin No. Symbol
1 Vo Output pin
2 NC Not connect
3 GND Ground
4 Cn Noise decrease pin
5 CONT Control pin
6 Sub Substrate pin, The 6pin must be connected to GND.
7 VIN Input pin
4.12 MM74HC4053SJ-X (IC389) : Multiplexer
• Pin layout
1Y
1
0Y
2
IZ
3
Z-COM 4
0Z 5
INH
6
V
7
EE
GND 8
6 5
2 3 4
V
IN 7
Bias
Cont
5
Thermal
shutdown
GND 3
Function
CONT Output
H ON
L OFF
16
Vcc
15
Y-COM
14
X-COM
13
1X
12
0X
11
A
10
B
9
C
Current
Driver
limiter
4
Cn
• Pin function
INHIBIT
L
L
L
L
L
L
L
L
H
X: Don't Care.
Vo
1
Reference
CONTROL INPUTS
C B
L L
L L
L H
L H
H L
H L
H H
H H
X X
A
K
H
K
H
K
H
K
H
X
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