Ic Block Diagrams - Sony HCD-VX777 Service Manual

6-29. IC BLOCK DIAGRAMS

IC11
24
IC51
20
1
IC302
LA1845 (MAIN BOARD)
23 22 21 20
ALC
AM AM
AM
MIX RF.AMP
OSC
BUFF
AGC
AM AM
IF
DET
LEVEL AM/FM
DET
COMP
IF
S-CURVE
BUFF
TUNING
FM
FM DRIVE
IF
DET
REG GND
1 2 3 4 5
LC72131 (MAIN BOARD)
19 18 17 16
PHASE
DETECTOR
CHARGE PUMP
REFERENCE
UNLOCK
DIVIDER DETECTOR
SWALLOW COUNTER
1/16, 1/17 4BITS
CCB
DATA SHIFT REGISTER LATCH
INTERFACE
2 3 4 5
uPC1330HA (MAIN BOARD)
COMPARATER
2 3 4 5
1
SW R1 GND SW P1 CONT GND
19 18 17 16
DECODER
ANTI-BRIDIE
STEREO
P-DET
SW
VCO FF
304KHz 38k
VCC
6 7 8 9 10
15 14
POWER
1/2
ON
RESET
12BITS
PROGRAMMABLE
DRIVER
6 7 8 9 10
INVERTER
6 7 8 9
VCC SW P2 GND SW R2
HCD-VX777
15 14 13
PILOT
CANCEL
FF FF PILOT
19K 19K 0 DET
11 12
13 12 11
UNIVERSAL
COUNTER
57