Sony HCD-CP33 - Page 54

54
– MAIN Board –
IC301 TDA7439
IC302 NJM3414AM-TE2 IC303 BA4558F-E2
IC304 MC14052BF-T1
VREF
VOLUME
TREBLE
MIDDLE
BASS
SPEAKER
ATTENUATOR
MULTIPLEXER
GAIN AMP
IIC BUS
DECODER &
LATCH
SUPPLY
SDA
CREF
VS
AGND
ROUT
LOUT
SCL DIG GND TREBLE (R) TREBLE (L) MIN (L) MOUT (L) BOUT (L) BIN (L) BOUT (R) BIN (R) MOUT (R) MIN (R) INR
1 2 3 4 5 6
R-IN4 R-IN3
7 8
R-IN2 R-IN1
9 10
MULTIPLEXER
GAIN AMP
L-IN1 L-IN2
11 12
L-IN3 L-IN4
13 14
MUX OUT (L)
15
18
VOLUME
TREBLE
MIDDLE
BASS
SPEAKER
ATTENUATOR
INL MUX OUT (R)
161727282930 22 21 20 1926 25 24 23
8
7
6
5
1
2
3
4
2CH
1CH
VCC
OUT2
–IN2
+IN2
OUT1
–IN1
+IN1
VEE
8
7
6
5
1
2
3
4
2CH
1CH
VCC
OUT2
–IN2
+IN2
OUT1
–IN1
+IN1
VEE
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
2X0
X2
VDD
X1
XCOM
X0
X3
A
B
VSS
VEE
INH
2X1
2X3
2XCOM
2X2
IC307 KA3082
GND
OUT1
VCTL
VZ1 VZ2
IN1 IN2
VCC1 VCC2
OUT2
5 6 7 8 9 101 2 3 4
DRIVER OUT
PRE DRIVER
LOGIC
SWITCH
TSD
BIAS