Sony CDP-CA80ES Service Manual page 33

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IC302 CXA8055M (MAIN BOARD (2/2))
3 7 63 1515 0
CIREF 1
NC 2
AGND
3
NC
4
IOR– 5
IOR+ 6
CONSTANT
C5 7
CONTROL
CIRCUIT
C6 8
C7R 9
AVEES 10
11
AVEES
C4R 12
C3
13
14
DVEE
15
C1R
ECL
DGND 16
SWITCHING
1N1–R
17
CIRCUIT
1N1+R 18
NC 19
20
1N2+R
1N2–R 21
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ANALOG
42 RIREF
VOLUME REFERENCE
41 VREF
CONTROL VOLTAGE
40 VCNT
CIRCUIT CIRCUIT
AGND
39
38
AV
CC
37 NC
CONSTANT
IOL–
36
CONTROL
CIRCUIT
IOL+
35
C7L
34
33 AVEES
AVEES
32
LOGIC
C4L
31
DV
30 EE
29 DV
CC
28 C1L
ECL
27 DGND
SWITCHING
26 1N1–L
CIRCUIT
25 1N1+L
24 NC
23 1N2+L
1N2–L
22
IC601 LA5616 (MAIN BOARD (1/2))
VIN1 1
ON/OFF
VO1 2
CN 3
EN1 4
GND 5
RES 6
ERROR
AMP
CD 7
EN2 8
9
VO2
VIN2 10
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IC551 BA6780 (MAIN BOARD (1/2))
2 9
8
1
VIN1
2
FIN1
RIN1 3
IOUT
4
VREF 5
6
VREG
VCC 7
8
OUT1+
9
Q Q
3 6 7 1 3 1 5
ON/OFF
CURRENT
LIMITER
OVERHEAT
PROTECT
RESET
GENERATOR
co
.
— 40 —
9 4 2 8
18
VIN2
17
FIN2
16
RIN2
15
CT2
14
VEE
FBIN-
13
12
FBIN+
11
OUT2+
10
OUT2-
0 5 8 2 9 9 4 2 8
VREF
ERROR
AMP
m
9 9
9 9