Ic Block Diagrams - Sony HCD-VX555J Service Manual

HCD-VX555/VX555J
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6-29. IC BLOCK DIAGRAMS

IC11 LA1845 (MAIN BOARD)
24
BUFF
LEVEL
DET
FM
IF
1
IC51 LC72131 (MAIN BOARD)
20
TE
L 13942296513
IC105 BU4052BCF-E2 (MAIN BOARD)
0
Y0
1
2
Y1 2
Y 3
3
Y3 4
1
www Y1
5
INH 6
VEE
7
VSS 8
.
58
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23 22 21 20
AM
ALC
AM
AM
PF.AMP
OSC MIX
AGC
AM AM
IF DET
AM/FM
IF
COMP
S-CURVE BUFF
TUNING
FM
DRIVE
DET
REG GND
2 3 4 5
16
19 18 17
PHASE
DETECTOR
CHARGE PUMP
REFERENCE UNLOCK
DIVIDER
DETECTOR
SWALLOW COUNTER
1/16, 1/17 4BITS
CCB
INTERFACE
2 3 4 5
1
16 VDD
2
15 X2
1
14
X1
X
13
0
12 X0
3
11 X3
x ao
SELECT A
y
A
10
SELECT B
B
9
i
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8
19 18 17 16
DEOODER
ANTI-BIRDIE
P-DET
STEREO
ø
SW
VCO FF
304kHz 38k
V
CC
6 7 8 9
15 14
POWER
1/2
ON
Q Q RESET
3 6 7 1 3
12BITS
PROGRAMMABLE
DRIVER
DATA SHIFT REGISTER LATCH
6 7 8 9 10
IC302 µPC1330HA (MAIN BOARD)
u163
1 2
SW P1 CONT GND
SW R1 GND
.
2 9 9 4 2 8
15 14 13
PILOT
CANCEL
FF FF PILOT
π
19k 19k 0
2 DET
10 11 12
13 12 11
1 5 0 5 8 2 9 9 4
UNIVERSAL
COUNTER
INVERTER
m
COMPARATER
co
3 4 5 6 7 8
VCC
SW P2 GND
9 9
2 8 9 9
9
SW R2