Sony HCD-EC50 - 6-3. BLOCK DIAGRAM MAIN SECTION -

2020
HCD-EC50
HCD-EC50
6-3. BLOCK DIAGRAM — MAIN SECTION —
: TUNER(FM)
: TUNER(AM)
: CD
• Signal Path
: AUX
: PB (TAPE)
: REC (TAPE)
• R-CH is omitted due to same as L-CH.
BIAS
OSC
Q507
REC/PB
HEAD
BLOCK
TAPE MECHANISM DECK
V2/P82
V1/P81
V0/P80
SYSTEM CONTROLLER
IC701(2/2)
P57/SI1
VOLUME
VOLUME
AUDIO IN
J105
FUCTION
KEY
REMOTE
CONTROL
RECEIVER
IC703
SW702-704,
SW706,709,710,719,721
SW711-716,
SW708,720
SW701,705
L-CH
R-CH
R-CH
TU-DO
TU-DI
TU-CLK
TU-ANSD
TU-CE
R-CH
P63/AN3
39
55
56
57
33
L501
SW501(1/2)
(REC/PB)
(REC/PB)
SW501(2/2)
BIAS OSC
P64/AN4
40
X1A
14
X0A
13
X701
32.768kHz
X0
93
X1
92
X702
4.19MHz
9
P34/IC0
FUCTION
KEY
FUCTION
KEY
38
41
31
RESET
SWITCH
Q704
54
RSTX
RESET
Q705,706
42
D051,052
RELAY
DRIVE
AC
IN
Q102
RY001
S001
37
P61/AN1
P62/AN2
P65/AN5/INT0
P71/AN9/SC1
P66/AN6/INT1
+9V
PB/REC EQ AMP
IC401
A1
19 18
OUT 1
B1
21
PB1P
2
C1
23
13
SD
28
REC 10
R-CH
R-CH
L-CH
P27
48
POWER
AMP
SEG0
SEG31
59
62
COM0
COM3
LIQUID CRYSTAL
DISPLAY
LCD702
Q244
Q135
Q201
Q243
Q242
Q241
Q131,133,
Q134,137
µCON +B
+3.6V
36
P60/ANO
P73/AN11/SI2
LINE
FILTER
VOLTAGE
SELECTOR
L001
+9V
VM9V
6
1
IC202
2
P25
5
D702
+9V
REG
IC101
+VP
-VP
1
3
D107-110
Q151-154
D111,113
+3.3V
REG
Q191
Q192
AVDD
( +3.3V)
DVDD
( +3.3V)
+3.3V
REG
D156
D154
Q193
EXCEPT US, CND
US,CND,AEP,UK,CET
DETECTION
+9V
POWER
MONITER
Q121,122
+3.6V
REG
Q701-703
1
P24
+3.6V
67
63
64
89
94
100
.
.
.
17
P40/LED0
46
SW700
LED702
LED
DRIVE
Q707
LED701
(BACK RIGHT)
(STANDBY)
J102
PHONES
R-CH
R-CH
L
R
R-CH
J101
SPEAKER
R-CH
CD-R
CD-L
A
BD/DRIVER
SECTION
(Page18)
P-SW
M-SW
+7V
PT001
POWER
(MAIN)
TRANSFORMER
PT002
POWER
(SUB)
TRANSFORMER
4
AMP
CONTROL
VOLTAGE
SHIFT
HP
MUTE
RELAY
CONTROL
OVERLOAD
AMP
PROTECT
THERMAL
DET
PROTECT
DET
DET
M
RY002
E3,SP
+9V
FAN
CONTROL
Q901-Q903
M901
FAN MOTOR
M
E3,SP,KR,AUS
E3,SP,KR,AUS
TUNER
SECTION
(Page19)
B
RY131
TH241
Ver. 1.3
•Abbreviation
AUS: Australian model
CND : Canadian model
CET : East Europian and Russian models
E3 : 240V AC area in E model
KR : Korean model
SP : Singapore model