Read Sony XM-404EQX / XM-604EQX Service Manual online
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21
20
19
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17
16
15
14
13
12
1
2
3
4
5
6
7
8
9
10
11
D4
D3
D2
D1
O6
O5
O4
O3
O2
O1
VCC
GND
GND
OSC
H.C
MUTE
AC/DC
DC IN
CR2
AC2 IN
CR1
AC1 IN
PEAK HOLD LOGIC
COMPARATOR
SWITCHER
DRIVER
VREF.
I/N
OSC
AMP
AMP
INPUT
INTERFACE
CLOCK
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15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
OSC
REF. REG.
ERROR
ERROR
0.1V
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• IC Block Diagrams
IC901 µPC494GS
IC802 BA6820F
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