Sony HCD-VR50 Service Manual page 59

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3 7 63 1515 0
• BD Board
IC103 CXA2568M-T6
APC PD AMP
VEE
HOLD 1
VEE
AGCVTH
2
VREF
3
LD
PD
4
A
5
B
6
C 7
D
8
VEE
9 VEE
VC
F
10
E
11
VC
TE
VC BUFFER
L 13942296513
VC 12
VC
• MAIN Board (1/5)
IC181 MC14052BF
2X0 1
2X2 2
2XCOM 3
2X3 4
2X1 5
6
INH
VEE 7
VSS 8
IC191 BA7615N
MUTE
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1 2 3 4 5 6
http://www.xiaoyu163.com
VCC
APC LD AMP
VC
VCC
VC
VEE
RF SUMMING AMP RF_EQ_AMP
VC VC
ERROR AMP
VC
FOCUS
VC
TRACKING
VC
ERROR AMP
VCC
VC
VEE
16 VDD
15 X2
14 X1
13 XCOM
12 X0
11 X3
10 A
9 B
75Ω
8db
LOGIC
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i
7 8 9 10
http://www.xiaoyu163.com
8
• VIDEO Board (3/3)
IC509 PCM1727E-2/T2
24 VCC
VCC
23
LC/PD
XT1 1
22 LD_ON
PGND 2
21 HOLD_SW 3
VCP
AGCCONT
20
(50%/30%
OFF) NCKO 4
RSV
5
RF_BOT
19
SCKO3 6
ML 7
MC 8
MC 9
RFTC
18
RSTB 10
17 RF_1
RFO
16
RFE
15
14 FE
13 TE
Q Q
3 VOUTR 6 7 11 1 3
AGND 12
• PANEL VR Board
IC851 M65850P
14
1/2 VCC
AUTO
RESET
LPF1
1 2
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.
– 99 –
2 9 9 4 2 8
384fs
CLOCK MANAGER
•
DUAL PLL
POWER
SUPPLY
DATA INPUT
INTERFACE
MODE
CONTROL
8 TIME OVER
SAMPLING DIGITAL
FILTER
•
FUNCTION
CONTROL
MULTI LEVEL MULTI LEVEL
BPZ
∆Σ
CONTROL
MODULATOR MODULATOR
5 LEVEL 5 LEVEL
DAC
CR LPF CR LPF
•
1 5 0 5 8 2 9 9 4
OUTPUT OUTPUT
AMP AMP
13 12 11 10 9 8
OSCILLATOR
D/A
LPF2
CLOCK DO1
MO
MAIN 20KBIT
RESET
CONTROL
SRAM
MI
D1 DO0
A/D
3 4 5 6 7
m
co
9 9
24 XT2
23 DGND
22 VDD
21 SCKO1
20 SCKO2
19 LRCK
AUDIO
18 DATA
17 BCK
16 ZERO
OPEN
15 CAP
14 VOUTL
∆Σ
DAC
•
2 8 9 9
13 VCA