Sony HCD-VR90AV - Main (2;2) Section

HCD-VR90AV
2424
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
5CD-POWER
2POWER
10XC-IN
11XC-OUT
13X-OUT
15X-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