DOWNLOAD Sony HCD-VR90AV Service Manual ↓ Size: 10.29 MB | Pages: 96 in PDF or view online for FREE

Model
HCD-VR90AV
Pages
96
Size
10.29 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-vr90av.pdf
Date
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Sony HCD-VR90AV Service Manual ▷ View online

HCD-VR90AV
21
21
VIDEO SECTION
SYSTEM
SELECT
S501
65
15
13
16
29
I
2
C.CLK
30
I
2
C.DATA
     XRESET
     TEST LED
     NT/PAL
     XOUT
     +5V
     D502
     A7
     DF LATCH
     SHARPNESS
     XIN
24
45
BUS
DSP DATA
DSP LATCH
SENSE CLK
DSP CLK
SENSE
DSP MUTE
CTRL1(L:DOUBLE)
CTRL2
LDON
SCOR
SUBQ DATA
22
34
X501
NTSC
AUTO
PAL
  10MHz
X503
27MHz
MECHA. CONTROL
IC502
LEVEL SHIFT
IC504
LEVEL SHIFT
IC501
D-RAM
IC507
ROM
IC506
AMP
IC101
OUTPUT AMP
IC401
VIDEO/CD DECODER
IC505
DIGITAL FILTER & D/A CONVERTER
IC509
DATA1O
DATA1I
CLK1
CL680 INT
DATA0
DATAI
CLK1
ADATA
BCLK
LRCK
C2P0
DATA
XLT
CLK
SENS
SCLK
MUTE
CTRL1
CTRL2
LDON
SCOR
SUBQ
SQCK
XRST
MCK
A
CD
SECTION
(Page 20)
SUBQ CLK
DEVICE RESET
23
93
73
12
3
4
5
1
2
10
11
27
28
18
37
36
77
20
21
33
32
31
69
HD-OUT
6
CD-C2P0
CD-LRCK
CD-BCK
HRDY
HD-IN
HCK
HINT
HSEL
RESET
PGIO2/VSYNC/CSYNC
INVERTER
Q502
CD-DATA
MWE
WE
RAS
UCAS
LCAS
A0
A8
DQ1
DQ16
RASO
CAS
MCE
MD0
MD15
MA10
MA0
      C-OUT
      Y-OUT
75
      DA-DATA
      DA-BCK 111
      VCK-IN 106
      DA-XCLK 86
110
      DA-LRCK 108
112
119
117
113
114
121
93
60
3
5
4
13 14 28 29
38 42
40
10
8
4
13
5
1
1
3
7
5
1
3
19
17
DATA0
CLK1
8
7
10
20
4
11
18
MODE
PLM
D/A
CONV
CLOCK
DIVIDER
9
24
1
16-19•22-26
2-5•7-10•31-34•36-39
O0
O7
A11
A17
A0
A10
CE
13-15•17-21
25•4•28•29•3•2•30
12-5•27•26•23
58-56•54•52-50•48•46-44
10-15•17•19•21•23-29
22
37
MUTE
Q454
BUFFER
Q301
MUTE
Q453
MIX AMP
Q308,310
BUFFER
Q303,304
TRAP
Q302,306,307
1
3
2
4
14
VCD VIDEO
J301
VIDEO
FREQUENCY
CT503
CD-L
R-CH
XRST
27MHz
384FS
768FS
S VIDEO
OUT
DATAI
DATAO
CLK1
HRDY
INT
HSEL
RST
CLK1, DATA0
(XTAL 33.8MHz)
RSTB
3.3V REG
Q531
+3.3V
D5V
: CD VIDEO
• R CH is omitted
• SIGNAL PATH
: CD AUDIO
: Y
: CHROMA
MAIN(1/2)
SECTION
(Page 23)
C
MAIN(1/2)
SECTION
(Page 23)
B
MAIN(2/2)
SECTION
(Page 24)
D
CLK
DATA
680 RESET
CL680 HRDY
CL680 HSEL
RESET
HRDY
HSEL
INT
11
1
3
8
12
6
21
HCD-VR90AV
22
22
DECK SECTION
IC611
R CH
HP101
PB HEAD
(DECK A)
L
R
RV311
PLAYBACK
LEVEL
DECK A
IC601
R CH
L
R
RV301
PLAYBACK
LEVEL
DECK B
3
1
IC602
4
REC BIAS
BIAS OSC
T621, Q621, 622
ERASE HEAD
ERASE BIAS
46
48
B IN
A IN
16
PB-A/B
38
36
RV301
REC LEVEL
39
RECOUT
BIAS SW
C
N
70
120
DOLBY
TYPE B
+7.5V
Q623
LIN
43
PB
24
18
20
22
40
25
PB OUT
LM ON/OFF
BIAS ON/OFF
  ALC ON/OFF
RM ON/OFF
TC PB L
TC REC L
PB A/B
NORM/HIGH
REC/PB/PASS
REC/PB/PASS
BIAS ON/OFF
15
RM ON/OFF
ALC ON/OFF
RELAY
16
G
LM ON/OFF
NORM/HIGH
PAS
DOL
P
R
REC/PB HEAD
(DECK B)
DOLBY NR
   IC301
DOLBY NR
HRPE101
RV341
REC
BIAS
32 33
23
NR ON/OFF
NR ON/OFF
17
S1004
A CrO
2
 
S1008
B CrO
2
 
19
A 120/70
B NORM/CROM/METAL
M
CAP MOTOR
CONTROL
Q336-343
SPEED
CONTROL
Q1001
SWITCH
Q335
RV1001
HIGH
SPEED
RV1002 
NORMAL
SPEED
M1
CAPSTAN
MOTOR
CAPM CNT2
CAP M H/L
CAPM CNT1
REEL
DETECT
IC1001
REEL
DETECT
IC1002
A SHUT
B SHUT
S1001 (A PLAY)
+5V
S1002 (B PLAY)
A PLAY
A HALF
B HALF/REC A/REC B
S1003 (A HALF)
+5V
S1005 (REC A)
S1006 (B HALF)
S1009 (REC B)
(Page 24)
• R CH : Same as L ch
• SIGNAL PATH
          : PB (DECK A)   
          : PB (DECK B)
          : REC (DECK B)
R CH
CN301
3
1
E
MAIN(1/2)
SECTION
MAIN(1/2)
SECTION
MAIN(2/2)
SECTION
(Page 23)
F
(Page 23)
28 27
26
MS
MS OUT
B TRIG
A TRIG
TRIGGER MOTOR CONTROL
Q331-334
A DECK/B DECK
PLUNGER
•   PLUNGER SOLENOID is supplied 
    as the MECHANICAL BLOCK ASSY.
B PLAY
HCD-VR90AV
23
23
MAIN (1/2) SECTION
SPEANA
MD OUT
J701
J704
L-CH SIG
BBA2
BUS OUT2
REC B2
REC A2
BBB2
VD OUT
6
1
VIDEO 2
IN
IN1
IN3
8
IN4
VCD VIDEO
J804
10
2
3
5
C
B
A
VIDEO 1
IN
DVD VIDEO
IN
J702
46
45
28
X
12
14
15
V1, AU,
L-CH IN
X2
X1
X0
J701
13
10 9
B
A
V2, AU,
L-CH IN
J804
FRONT
(L IN)
16
J703
CENTER
IN
J703
REAR
(L IN)
J703
WOOFER
IN
WOOFER
OUT
J703
46 45
IC181 SELECTOR
AV SWITCH
IC191
PHONO
(L IN)
J701
VIDEO
SECTION
(Page 21)
TC PB L
MD (L IN)
69
68
66
IN D2
IN B2
IN A2
SOUND PROCESSOR 1
IC101
IC601
PHONO AMP
65
2
67
IN C2
MIC IN
IN E2
64 IN F2
D OUT 2
KEY IN2
L
LT-IN
MUTE
SWITCH
Q731
D805
MAIN CONTROL
IC501 (1/2)
3
LINE-MUTE
F-RELAY
DBFB-H/L
SW-MODE
RESET
6
12
28
45
46
37
BUF IN2
57
36
39
38
58
L+R
30
MUTE
SWITCH
Q113
VIDEO
OUT
J702
TC REC L
DECK 
SECTION
(Page 22)
POWER 
SECTION
(Page 25)
MIC-SIG
ST-L
CD-L
J701
E
C
H
DECK 
SECTION
(Page 22)
F
POWER 
SECTION
(Page 25)
J
DISPLAY 
SECTION
(Page 26)
I
3
1
DISPLAY 
SECTION
(Page 26)
M
F-RELAY
POWER 
SECTION
(Page 25)
L
4
IN2
J702
VIDEO
SECTION
(Page 21)
B
• R CH: Same as L ch
• SIGNAL PATH
            : FM
            : TC PB
            : TC REC
            : CD AUDIO
            : CD VIDEO
FM/AM TUNER
TUNER UNIT IS
SUPPLED AS THE
ASSEMBLED
BLOCK
74
C-IN
76
SL-IN
77
SW-IN
79
VRSW-IN
80
SURROUND PROCESSOR
IC201
POWER
SECTION
(Page 25)
REAR-L
CENTER
1
3
9
23
22
24
REQ
VOLOUT C
VOLOUT SL
DATA
SCK
MUTE
SWITCH
Q271
MUTE
SWITCH
Q281
N
59
SUPER WOOFER
72
60
DBFB
POWER 
SECTION
(Page 25)
K
Q115
SWITCH
Q111
SWITCH
Q112
SWITCH
17
VOLOUT SW
34
493-LAT
38
493-DATA
47
493-CLK
48
PL-CLK
23
PL-DATA
24
PL-LAT
25
V_MUTE
28
FUNC_SEL1
45
FUNC_SEL0
46
LATCH 38
DATA 47
CLOCK 48
7
1
3
RESET
GEN
IC800
EVER+5V
INV
Q804
INV
Q803
INV
Q801
INV
Q802
RESET
HCD-VR90AV
24
24
MAIN (2/2) SECTION
MAIN CONTROL
IC501 (2/2)
1
27
93
59
18
29
30
81
80
84
82
83
86
85
87
88
90
89
100
91
1
27
93
STK-POWER
PROTECT
XRST
XRST
HP MUTE
29
30
WAKE UP
IIC-CLK
IIC-DATA
93
1
27
29
30
STK POWER
PROTECT
HP MUTE
DATA
CLOCK
29
30
DATA
CLOCK
WAKE UP
IC933
M+7V (UNSW)
PL A+10V
7V
ST +10V
TC MOTOR+12V
FAN
1
3
1
3
+10V
REG
+12V
REG
IC931
IC932
FAN SWITCH
Q961, 962
+UNREG, 17V
FAN901
Q931
SWITCH
Q932
SWITCH
+7V
REG
1
3
A–7.5V
–V BIAS
2
3
–7V
REG
IC951
UN–10V
Q903
SWITCH
Q904
SWITCH
Q905
SWITCH
Q906
INV
1
3
+7V
REG
IC901
UN+10V
Q901
SWITCH
Q902
SWITCH
TC–7V
–7V
–7
(LED–7V)
A+7.5V
+V BIAS
TC–7V
–7V
–7
(LED+7V)
1
3
+5V
REG
IC911
LED 5V
LED 5V
D+5V UNSW
Q911
SWITCH
Q912
SWITCH
5V
AU D+5V
EVER +5V
Q921
SWITCH
CD D+5V SW
CD A+5V SW
(D+5V SW)
1
3
+5V
REG
IC921
Q914
SWITCH
POWER 
SECTION
(Page 25)
POWER
SECTION
(Page 25)
Q
DISPLAY
SECTION
(Page 26)
R
72
69
75
73
74
77
76
78
79
63
61
4
65
63
65
7
3
68
50
49
52
51
53
54
55
BIAS
REC-MUTE
ALC
EQ-H/N
PB-A/B
A-PLAY-SW
B-PLAY-SW
A-HALF
B-HALF
A-SHUT
B-SHUT
TC-RELAY
A-TRG
B-TRG
CAP-M-H/L
CAPM-CNT 2
CAPM-CNT 1
TC-MUTE
AMS IN
R/PB/PAS
NR-ON/OFF
DISC-SENS
TBL-R
TBL-L
ENC 3/UP-SW
ENC 2/DISC-LED
STEREO
ST-MUTE
ST-CE
TUNED
ST-DOUT
ST-DIN
ST-CLK
36
H/P IN
PL-RELAY
5
CD-POWER
2
POWER
10
XC-IN
11
XC-OUT
13
X-OUT
15
X-IN
BIAS ON/OFF
RM ON/OFF
ALC ON/OFF
NORM/HIGH
PB A/B
A PLAY
B PLAY
A HALF
B HALF/REC A/REC B
A SHUT
B SHUT
RELAY
A TRIG
B TRIG
CAP M H/L
CAPM CNT2
CAPM CNT1
LM ON/OFF
MS OUT
REC/PB/PASS
NR ON/OFF
STEREO
ST-MUTE
ST-CE
TUNED
ST-DOUT
ST-DIN
ST-CLK
HP.SW
PL-RELAY
POWER
SECTION
(Page 25)
P
DECK
SECTION
(Page 22)
G
X501
32.768kHz
X502
16MHz
S
16
POWER
SECTION
(Page 25)
O
VIDEO
SECTION
(Page 21)
D
FM/AM TUNER
TUNER UNIT IS
SUPPLED AS THE
ASSEMBLED
BLOCK
• R CH : Same as L ch
4
TABLE SENSOR
IC202
LED DRIVER
Q201
M
M201
TABLE
MOTOR
S201
UP SWITCH
D201
DISC No.
MOTOR
DRIVER
IC201
FAN.DET
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