Block Diagram - Main Section - Sony HCD-EH10 Service Manual

HCD-EH10
Ver. 1.3
7-3. BLOCK DIAGRAM – MAIN Section –
J105
AUDIO IN
CD
(Page 14)
A
TUNER
(Page 15)
C
L-CH
SW501
(REC/PB)
HR501
PB
(REC/PB)
r
SW501-1
REC
R-CH
SW501-2
TAPE
MECHANISM
DECK
BIAS OSC
L501
COM0 – COM1
LCD702
LIQUID
CRYSTAL
DISPLAY
SEG0 – SEG31
(LCD BACK LIGHT)
REMOTE CONTROL
RECEIVER 9 IC0
IC703
HCD-EH10
R-CH
19 A1
OUT1 18
23 C1
R-CH
INPUT SELECT,
ELECTRICAL VOLUME
IC401
21 B1
REC1O 28
2 PB1P
SD
13
R-CH
OSC
Q507
X702
X701
4.19MHz
32.768kHz
40 4 14 13 92 93
SYSTEM CONTROLLER
IC701 (3/3)
46 17
SW750
(CD LID OPEN/CLOSE DETECT)
LED DRIVE
28 PPG1
Q707
ROTARY
VOLUME ENCODER 48 SI2
SW700
LED701 LED702
STANDBY
SW701 – 705,
SW711 – 716
(FRONT PANEL KEYS)
POWER J102
AMP
PHONES
IC301
AMP-STBY
B
+
L
–
J101
SPEAKER
+
R
–
+
DC
DETECT
Q123
D372
+
TUNER +3.1V
TUNER +5V
AN0 36
VM +7V
CD A +3.3V
+1.8V
CD +1.8V REGULATOR
IC202
CD D +3.3V
P24 1
D702
SYS +3.3V
VOLTAGE
AN6 42 DETECT
Q705, 706
RESET
AN1, AN2, AN5
RSTX 54 SWITCH
Q704
16 16
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER
: CD PLAY
(Page 14)
: TAPE PLAY
: REC
: AUX IN
AC DETECT
Q121, 122
AC DETECT
Q371, 372
B+ SWITCH RECT
AMP B+
Q351, 352 D107 – 110
VM +9V
AC DETECT
Q193
+3.1V
REGULATOR
Q801
+5V
REGULATOR
Q802
D191, 192
+3.3V
REGULATOR
Q191
VSTBY
(EXCEPT Singapore)
+3.3V +9V
RECT
REGULATOR REGULATOR
D111, 113
Q192 Q101 – 103
D112, 114
(Singapore)
+4V
REGULATOR
Q701 – 703
POWER
TRANSFORMER
PT005
(AC IN)
F001
(EXCEPT Singapore)
F002
VOLTAGE
SELECTOR
S901
(Singapore)