Ic Block Diagrams - Sony HCD-GRX7 Service Manual

• IC Block Diagrams

– TCB Board –
IC21 LC72130 (AEP, UK, German, East European, CIS models)
20
24 23 22 21
PHASE DETECTOR
CHARGE PUMP
UNLOCK
DETECTOR
REFERENCE
DIVIDER
C 2 B
I/F
1 2 3 4 5 6
IC41 LA1838 (AEP, UK, German, East European, CIS models)
30 29 28 27 26
REG
ALC
AM
AM AM
RF. AMP
OSC MIX
BUFF
SD
COMP
AM
IF
AM/FM
IF
FM
S-CURVE
BUFF
S METER
FM
FM
DET
IF
1 2 3 4
19 18 17 16 15
POWER
ON
1/2
RESET
SWALLOW COUNTER
1/16, 1/17 4BITS
12BITS PROGRAMMABLE
DRIVER
DATA SHIFT REGISTER LATCH
7 8 9 10 11
25 24 23 22
AGC
DET
AM
S METER
TUNING
DRIVE
GND
VCC
5 6 7 8 9 10
14
13
UNIVERSAL
COUNTER
12
20 19 18 17 16
21
DECODER
ANTI BIRDIE
STEREO
SW
STEREO
DRIVE
MUTE
FF FF FF
VCO
PILOT
DET
PHASE
DET
13
11 12 14
– 77 –
15