2424
HCD-GB3
HCD-GB3
7-3. BLOCK DIAGRAM — MAIN SECTION —
A
BD/DRIVER
SECTION
(Page 22)
TUNER
SECTION
(Page 23)
C
B
BD/DRIVER
SECTION
(Page 22)
: TUNER(FM)
: TUNER(AM)
: CD
• Signal Path
: AUX
: PB (TAPE)
: REC (TAPE)
• R-CH is omitted due to same as L-CH.
BIAS
OSC
Q507,508
Q501,502
REC/PB
HEAD
BLOCK
TAPE MECHANISM DECK
V2/P82
V1/P81
V0/P80
SYSTEM CONTROLLER
IC701(2/2)
P57/SI1
ENCODER
AUDIO IN
J105
FUCTION
KEY
SW
REMOTE
CONTROL
RECEIVER
IC703
SW703,704,706,709,710,719,721
SW711-716,SW708,720
SW701,702,705,722-724
L-CH
R-CH
R-CH
TU-DO
TU-DI
TU-CLK
TU-ANSD
TU-CE
R-CH
P63/AN3
P71/AN9/SC1
39
46
55
56
57
33
L501
SW501(1/2)
(REC/PB)
(REC/PB)
+4V
SW501(2/2)
BIAS OSC
AMP-ON
VM9V
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
1
DECODER
IC702
21
P44/LED4
3
22
P45/LED5/TOT0
4
15
16
23
P46/LED6/TOT1
DATA
CLK
LCK
5
11
M1+
12
M1-
13
M2-
14
M2+
M1+
M1-
M2-
M2+
RESET
SWITCH
Q704
54
RSTX
RESET
Q705,706
42
D051,052
RELAY
DRIVE
AC
IN
Q102
S001
E2
37
P61/AN1
P62/AN2
P65/AN5/INT0
P47/LED7/TOT2
P66/AN6/INT1
VM+9V
PB/REC EQ AMP,
FUNCTION CONTROLLER
IC401
IC402
LEVEL
DET
D510
R-CH
A1
19 18
OUT 1
SEL OUT 1
B1
21
PB1P
2
6
C1
23
13
SD
28
REC 10
R-CH
R-CH
L-CH
P27
45
POWER
AMP
SEG0
SEG31
59
62
COM0
COM3
DIM0
DIM1
6
10
LED1
LED5
LIQUID CRYSTAL
DISPLAY
LCD702
Q244
Q135
Q201
Q243
Q242
Q241
Q131-134,
Q138
µCON VCC
µCON AVCC
36
P60/ANO
P70/AN8/INT3
LINE
FILTER
VOLTAGE
SELECTOR
L001
VM+9V
6
1
IC202
2
P25
5
D702
+9V
REG
IC101
+VP
-VP
1
3
D107-110
D191,192
Q151-154
D111,113
+3.3V
REG
Q191
Q192
AVDD
( +3.3V)
DVDD
( +3.3V)
+3.3V
REG
D156
D154
Q193
DETECTION
VM+9V
POWER
MONITOR
Q121,122
+3.6V
REG
Q701-703
1
P24
67
63
64
89
94
100
.
.
.
17
P40/LED0
24
SW699
LED702
LED
DRIVE
Q707,709,710
LED701,709
(BACK LIGHT)
(STANDBY)
LED703-707
(VOLUME)
J102
PHONES
R-CH
R-CH
R-CH
L
R
R-CH
J101
SPEAKER
R-CH
CD-R
CD-L
P-SW
M-SW
+7V
PT001
POWER
(MAIN)
TRANSFORMER
PT002
POWER
(SUB)
TRANSFORMER
4
VOLUME
ENCODER
VOLUME
48
P73/AN11/SI2
SW700
AMP
CONTROL
VOLTAGE
SHIFT
HP
MUTE
RELAY
CONTROL
OVERLOAD
AMP
PROTECT
THERMAL
DET
PROTECT
DET
DET
M
RY002
VM+9V
FAN
CONTROL
Q901-Q903
M901
FAN MOTOR
M
RY131
TH241
ERASE
D901
AMP-ON
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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