Sony HCD-VR90AV Service Manual ▷ View online
HCD-VR90AV
57
57
6-33. PRINTED WIRING BOARD JACK SECTION
• Refer to page 19 for Circuit Boards Location.
(Page 42)
(Page 34)
ECHO LEVEL
MIC VOL
J
F
23
23
16
HCD-VR90AV
58
58
6-34. SCHEMATIC DIAGRAM TRANS SECTION
(Page 43)
16
JW971
EA,MY,SP,IA MODEL
MY,SP,IA MODEL
TH MODEL
0.15
0.15
RBV-2506
T6.3A/250V
T6.3A/250V
T6.3A/250V
T6.3A/250V
T5AL/250V
The components identified by mark
!
or dotted
line with mark
!
are critical for safety.
Replace only with part number specified.
HCD-VR90AV
59
59
6-35. PRINTED WIRING BOARD TRANS SECTION
6-36. SCHEMATIC DIAGRAM LEAF SW SECTION
6-37. PRINTED WIRING BOARD LEAF SW SECTION
• Refer to page 19 for Circuit Boards Location.
• Refer to page 19 for Circuit Boards Location.
(Page 38)
16
(Page
42)
EA,MY,SP,IA MODEL
MY,SP,IA MODEL
16
JW967
JW971
16
(Page 34)
12
12
12
16
HCD-VR90AV
60
60
IC191 BA7615N (MAIN (1/5) section)
IC603 BA3830F (FL section)
IC851 M65850P (JACK section)
6-38. IC BLOCK DIAGRAMS
2
1
3
4
6
5
9
10
CTLC
VOUT
7
8
MUTE
LOGIC
CTLC
IN3
VCC
IN4
IN1
CTLA
CTLB
IN2
75
Ω
8db
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
2X0
X2
VDD
X1
XCOM
X0
X3
A
B
VSS
VEE
INH
2X1
2X3
2XCOM
2X2
OSCILLATOR
1/2 VCC
AUTO
RESET
LPF1
MAIN
CONTROL
A/D
20KBIT
SRAM
LPF2
D/A
1
2
3
4
5
6
7
8
9
10
14
13
12
11
CLOCK
RESET
MO
MI
D1
DO0
DO1
VCC
CLOCK
REF
OP2IN
OP2OUT
LPF2IN
LPF2OUT
LPF1IN
LPF1OUT
OP1OUT
OP1IN
CC1
CC2
GND
13
DATA
CLK
STB
CLR
VDD
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P15
GND
GND
18
6
SO
P16
10
12
11
P13
P14
14
15
16
24
17
19
20
21
22
23
1
2
3
4
5
7
8
9
CONTROL
LATCH
SHIFT REGISTER
2
3
14
1
f04
13 f05
12 f06
11 REC
LEVEL
10 VCC
15 f03
5
REC
NF
6
REC
IN
7
RESET
C
8
BIAS
C
9
GND1
4
16 f02
17 f01
18 RESET
R02
P01
LINE
NF
LINE
IN
REFFERENCE
CURRENT
BPF
DET
BPF
DET
BPF
DET
BPF
DET
DET
RESET
Bias
REFFERENCE
CURRENT
DET
DET
BPF
BPF
IC604 NJU3716L (FL section)
IC181 MC14052BF (MAIN (1/5) section)
IC509 PCM1727E-2T2 (VIDEO (3/3) section)
1
2
3
4
5
6
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
POWER
SUPPLY
CLOCK MANAGER
•
DUAL PLL
AUDIO
DATA INPUT
INTERFACE
8 TIME OVER
SAMPLING DIGITAL
FILTER
•
FUNCTION
CONTROL
MODE
CONTROL
MULTI LEVEL
∆Σ
MODULATOR
MULTI LEVEL
∆Σ
MODULATOR
5 LEVEL
DAC
5 LEVEL
DAC
CR LPF
•
OUTPUT
AMP
CR LPF
•
OUTPUT
AMP
BPZ
CONTROL
13
OPEN
XT1
PGND
VCP
NCKO
RSV
SCKO3
ML
MC
MC
RSTB
VOUTR
AGND
VCA
ZERO
BCK
DATA
LRCK
SCKO2
SCKO1
VDD
DGND
XT2
384fs
15
14 VOUTL
CAP
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