Sony CDP-XB920 Service Manual page 26

IC104 LA6510L (SERVO BOARD)
2
VOUT1
1
VSENCE1
IC103 CXA2568M (SERVO BOARD)
APC PD AMP
VEE
HOLD 1
VEE
AGCVTH
2
VREF
3
LD
PD
4
A
5
B
6
RF SUMMING AMP
C 7
D
8
VEE
9 VEE
VC
F 10
E
11
VC
VC BUFFER
VC 12
VC
4
VCC 24
23
VCC
22
APC LD AMP
21
20
VC
VCC
19
VC
VEE
18
RF_EQ_AMP
17
VC VC
16
15
ERROR AMP
VC
FOCUS
14
VC
13
TRACKING
VC
ERROR AMP
VCC
VC
VEE
3
10 7
5
IC302 CXA8055M (MAIN BOARD)
VCC
LC/PD
LD_ON
CIREF 1
NC 2
AGND 3
HOLD_SW
NC
4
AGCCONT
(50%/30%
IOR– 5
OFF)
IOR+ 6
RF_BOT
C5 7
C6 8
C7R 9
AVEES 10
RFTC
RF_1
11
AVEES
RFO
C4R
12
RFE
C3 13
DVEE 14
FE
C1R 15
DGND 16
1N1–R
17
18
1N1+R
19
NC
20
1N2+R
TE
21
1N2–R
— 38 —
6
ANALOG
VOLUME REFERENCE
CONTROL VOLTAGE
CIRCUIT CIRCUIT
CONSTANT CONSTANT
CONTROL CONTROL
CIRCUIT CIRCUIT
LOGIC
ECL ECL
SWITCHING SWITCHING
CIRCUIT CIRCUIT
8 VOUT2
VSENCE2
9
42 RIREF
41 VREF
40 VCNT
AGND
39
38 AV
CC
37 NC
IOL–
36
35 IOL+
C7L
34
33 AVEES
AVEES
32
C4L
31
DV
30 EE
29 DV
CC
28 C1L
27 DGND
26 1N1–L
25 1N1+L
24 NC
23 1N2+L
22 1N2–L