Read Sony HCD-RV555 / MHC-RV555 Service Manual online
28
28
HCD-RV555
HCD-RV555
6-4. BLOCK DIAGRAM — PANEL/POWER SUPPLY SECTION —
–27V
REGULATOR
Q902
AC IN
SUB POWER
TRANSFORMER
PT902
RY901
EVER+10V
VF1, 2
VDD2
VDD1
VDD3/4
TO
SYSTEM
CONTROL
TO
POWER
AMP
TO
FLUORESCENT
INDICATOR TUBE
+12V
REGULATOR
Q311
–VFL
MAIN POWER
TRANSFORMER
PT901
RECT
D301 – 304
D324, 325
D321
D609
D608
D611
D610
D316
D908
RECT
RECT
F907
R908
+3.3V
REGULATOR
IC301
D+3.3V
+5V
REGULATOR
IC302
VOLTAGE
DETECT
IC604
+3.3V
REGULATOR
IC603
A +5V
D +5V
+3.3V
REGULATOR
IC202
CD +3.3V
+2.5V
REGULATOR
IC201
RIPPLE
FILTER
Q201
CD +2.5V
VCC (4.5V)
(CD)
RECT
D309 – 312
RECT
D902 – 904
RY B+
FAN B+
EVER+10V
+9V
REGULATOR
IC304
CD M+7V
RECT
D305 – 308
UNREG +16V
+9V
REGULATOR
IC303
+9V,
MIC +9V
M +9V
3.5V (SW)
B+ SWITCH
Q312
B+ SWITCH
Q604, 616
RESET
Q605
B+ SWITCH
Q314, 315
RELAY DRIVE
Q361, 362
VOLTAGE
SELECTOR
S901
29
I-AC CUT
74
O-POWER RELAY
11
RESET
SYSTEM CONTROLLER
IC601 (3/3)
O-POWER LED 76
O-XLT (CD-LAT) 94
B+ SWITCH
Q301, 302
FLUORESCENT
INDICATOR TUBE
FL601
S1 – 21
G1 – G13
42 – 30
43 – 45, 47 – 50,
52 – 65
LED601
I/1
I-SIRCS-IN
–VFL
6
VF1, 2
28
LED610 – 615
(ILLUMINATION)
LED DRIVE
Q610 – 615
REMOTE CONTROL
RECEIVER
IC610
S601 – 612,
S621 – 630,
S641 – 650,
S621 – 630,
S641 – 650,
SW601
10
51
I-VOLUME-IN2
9 I-VOLUME-IN1
-VPP
ROTARY
ENCODER
S660
MASTER
VOLUME
VOLUME
8 I-BU1924 CLK
I-KEY1 – 3
92 O-VIDEO SW
27 – 25
STREAM LED6
I
STREAM LED1
82 – 77
X601
32.768kHz
13
12
O-XT2
I-XT1
16
15
X602
10MHz
CF2
CF1
F906
AC3
AC4
AC4
RECT
D401
D401
VH+
VH-
AC-VH
AC-VL
F908,
F909
F909
FRONT SP RELAY
J
MAIN
SECTION
VIDEO SW
G
AUDIO/VIDEO
CD
SECTION
RECT
D402
D402
VL+
VL-
3.5V (SW)
F904,
F905
F905
(Page 26)
(Page 27)
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