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HCD-BX3R/BX4R
19
19
HCD-BX3R/BX4R
6-3. BLOCK DIAGRAM – MAIN Section –
AUDIO IN
R-CH
J301
CD-L
A
TUNER-L
E
PROTECT
J
6
8
5
4
22
DATA
21
CLK
AMP DATA
81
AMP CLOCK
82
TA LINE-MUTE
80
LOUT
INPUT SELECT, ELECTRICAL VOLUME
IC304
SYSTEM CONTROLLER
IC301 (3/4)
: AUDIO
: CD PLAY
SIGNAL PATH
R-ch is omitted due to same as L-ch.
: AUDIO IN
: TUNER (FM/AM)
INL3
IGOUTL
VOLINL
INL2
INL1
9
MUTING
Q103, 203
R-CH
27
MUTING
CONTROL
Q340, 341
POWER AMP
IC601
11 CH1 IN
12 CH1 NF
12 CH1 NF
10
MONITOR
CH1 OUT+ 4
CH1 OUT– 5
13
STBY
J500
R-CH
PHONES
SPEAKER
+
–
–
–
+
R
L
J302
DC
DETECT
Q342 – 344
M301
(FAN)
(FAN)
+9V
M
M
AC DET
K
D313
STK-ON
87
FAN MOTOR
DRIVE
Q316, 317
FAN MOTOR
DETECT
Q307, 347, 348
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