24
24
HCD-GB3
HCD-GB3
7-3. BLOCK DIAGRAM — MAIN SECTION —
: CD
: 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
SYSTEM CONTROLLER
IC701(2/2)
ENCODER
AUDIO IN
J105
FUCTION
KEY
SW
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
L501
SW501(1/2)
(REC/PB)
(REC/PB)
+4V
SW501(2/2)
BIAS OSC
AMP-ON
VM9V
X701
32.768kHz
X702
4.19MHz
FUCTION
KEY
FUCTION
KEY
DECODER
IC702
M1+
M1-
M2-
M2+
RESET
SWITCH
Q704
RESET
Q705,706
D051,052
RELAY
DRIVE
AC
IN
Q102
S001
E2
VM+9V
PB/REC EQ AMP,
FUNCTION CONTROLLER
IC401
IC402
LEVEL
DET
D510
R-CH
R-CH
R-CH
L-CH
LIQUID CRYSTAL
DISPLAY
LCD702
Q244
Q135
Q201
Q243
Q242
Q241
Q131-134,
Q138
µ
CON VCC
µ
CON AVCC
LINE
FILTER
VOLTAGE
SELECTOR
L001
VM+9V
IC202
D702
IC101
+VP
-VP
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
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
P-SW
M-SW
+7V
PT001
POWER
(MAIN)
TRANSFORMER
PT002
POWER
(SUB)
TRANSFORMER
VOLUME
ENCODER
VOLUME
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
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299