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6-3.
BLOCK DIAGRAM – MAIN Section –
RL-CH
(Page 16)
F
RR-CH
R-CH
TL-CH
TR-CH
R-CH
TU-L
B
(Page 15)
TU-R
R-CH
CD BLOCK
CD-L-IN
CD-R-IN
R-CH
CD DO
CD CLK
CD \RESET
DA IN
H
(Page 16)
CLOCK
DA IN
(Page 15)
E
CLOCK
DA OUT
PLL CE
STEREO
STATION
L1
12
INPUT SELECT SWITCH,
ELECTRICAL VOLUME
L2
U6
11
L4
9
LTOUT
LINE AMP
L3
3
10
U3
SWITCH
SELECT SWITCH
14
15
16
8
7
6
5
4
SOUND
CONTROL
CIRCUIT
SYSTEM CONTROLLER
IC301 (2/3)
42
CDDATA
16
CDCLK
INPINENA
45
CDRESET
43
MUTE 49
X2
7
X1
8
47
CE
1
GENERALDOUT
2
GENERALCLK
100
GENERALDIN
CD DOOR SW 19
48
PLLENA
4
STEREO
34
TUNED
I2CDATA
3
I2CCLK
5
LVRIN
LVROUT
2
1
MEGA BASS
30
R-CH
CONTROL SWITCH
RVROUT
Q13
R-CH
D17
X301
4.194304MHz
SW300
Z PUSH
OPEN/CLOSE
EEPROM
IC302
5
SDA
6
SCL
17
17
POWER AMP
U11
MUTING
MUTING
Q7
Q21
R-CH
R-CH
D23
D20
HEADPHONE
AMP
U9
• SIGNAL PATH
: TUNER
: CD PLAY
: TAPE PLAY
: RECORD
HCD-EP50
CN17
SPEAKER
IMPEDANCE
USE 8Ω
+
L
–
–
R
+
R-CH
+9V
JK401
R-CH
PHONES
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