Sony HCD-EC55 - Block Diagram - MAIN Section

3232
HCD-EC55/EC77/GX99
HCD-EC55/EC77/GX99
7-3. BLOCK DIAGRAM — MAIN SECTION —
: TUNER(FM)
: TUNER(AM)
: CD
• Signal Path
: AUDIO
: PB (TAPE)
: REC (TAPE)
• R-CH is omitted due to same as L-CH.
BIAS
OSC
Q501
Q502
REC/PB
HEAD
BLOCK
TAPE MECHANISM DECK
SYSTEM CONTROLLER
IC301(2/2)
VOLUME
VOLUME
AUDIO IN
J401
FUCTION
KEY
REMOTE
CONTROL
RECEIVER
IC302
SW303-
310
SW311-318
SW301,302
L-CH
R-CH
R-CH
TU-DO
TU-DI
TU-CLK
TU-ANSD
TU-CE
R-CH
39
55
56
57
33
L501
S501(1/2)
(REC/PB)
(REC/PB)
S501(2/2)
BIAS OSC
I-TP-STATE
40
X1A
14
X0A
13
X301
32.768kHz
X0
93
X1
92
X302
5MHz
9
FUCTION
KEY
FUCTION
KEY
38
31
RESET
SWITCH
Q306
54
RESET
Q304,305
42
D051,052
RELAY
DRIVE
AC
IN
Q619
RY001:EXCEPT E2,E3,E51,MX,KR,AR,SP,AUS
RY002:E2,E3,E51,MX,KR,AR,SP,AUS
37
+9V
AUDIO SELECTOR
IC602
R-CH
AUDIO-L
5 27
L-OUT
26
R-OUT
TUNER-L
6
4
CD-L
7
21
22
8
REC-L
R-CH
R-CH
L-CH
48
POWER
AMP
(HIGH)
SEG0
SEG31
59
62
COM0
COM3
LIQUID CRYSTAL
DISPLAY
LCD301
Q604
Q151
µCON +B
+ 4 V
36
49
+9V
VM9V
11
IC101
IC101
D303
+9V
REG
IC601
+VP
-VP
1
3
Q605,606
D611,612
Q624
+3.3V
+3.3V
REG
D606
D602
VM9V
CD
MONITOR
Q618
+3.6V
REG
Q302,303
1
+4V
67
63
64
89
94
100
.
.
.
28
45
LED302
LED
DRIVE
Q301
LED301
(BACK RIGHT)
STANDBY
J402
PHONES
R-CH
R-CH
R-CH
R-CH
L
R
R-CH
TB601
L
R
R-CH
CD-R
CD-L
A
BD/DRIVER
SECTION
(Page 30)
P-SW
M-SW
VM+7V
POWER
(MAIN)
TRANSFORMER
TP001
TP003 : EC55
TP002 : EC77/GX99
POWER
(SUB)
TRANSFORMER
4
SP RELAY
DRIVER
OVERLOAD
Q101,102
AMP
PROTECT
AC
MONITOR
DET
CD POWER
SWITCH
M
+9V
FAN
CONTROL
Q601,602
FAN
MONITOR
Q603
M901
FAN MOTOR
M
AMP
CONTROL
Q608
13
POWER
AMP
(LOW)
11
IC102
IC102
13
SPEAKER
HIGH FREQ.
IMPEDANCE:
USE 8
TB602
SPEAKER
LOW FREQ.
IMPEDANCE:
USE 8
SPEAKER
IMPEDANCE:
USE 6
O-LED
O-LED-STBY
2
7
I-RMC
I-HOLD
RESET
I-RE-VOL
S301
O-POWER
I-P-MONI
41
I-KEY1
I-KEY2
I-KEY-WAKE
3
DATA
CLK
O-FUNC-DATA
O-FUNC-CLK
TONE CONTROLLER
TAPE-L
I-TU-DO
O-TU-DI
O-TU-CLK
O-TU-CE
I-TU-ANSD
5
5
D617
POWER
D616
D607,609
D619,620
D601
D602
O-CD-ON
Q622
5
IC502
HEAD AMP
5
75
IC501
HEAD AMP
D055(1/2)
D055(2/2)
EXCEPT US,CND
Q151
OVERLOAD
Q101,102
AMP
PROTECT
DET
EC77/GX99
EC77/GX99 EC55
VOLTAGE
SELECTOR
S001
E2,E3,E51,SP
SUBW00FER
OUT
TUNER
SECTION
(Page 31)
B
RY601
RY602
J601
GX99
Ver. 1.1