Sony CDX-C4750 Service Manual page 32

IC601 TDA7427AD1
LP FM
1 SWITCH
LP1/LP2
LP HC 2
LP AM
3
V REF
4
LCL/DX
5
SEEK
6
PORT
EXTENSION
NIL
7
MONO
8
OSCIN
9 REF
OSCILLATOR
OSCOUT
10
NC
11
SCL
12 2
I C BUS
INTERFACE
SDA
13
14 BIT PROG
COUNTER
SWITCH
IF AM
14
AM/FM
IC901 BA4903
5.7V
ON
– +
THERMAL
CIRCUIT ON
1 2
AMP AMP
ON OUT
CHARGE PHASE
PUMP COMP
INLOCK
DETECTOR
TEST
LOGIC
16 BIT PROG
COUNTER
TIMER CONTROL
11-21 BIT PROG COUNTER
ON
+ –
REGULATOR
VREF
SHUT
DOWN
OVER
VOLTAGE
PROTECT
3 4 5
GND VCC VDD
OUT
– 44 –
VDD1
11 BIT PROG
COUNTER
SWITCH SWITCH
SWM/DIR SWM/DIR
SWITCH
AM/FM
6 BIT PROG PRE COUNTER
COUNTER :32/33
SUPPLY
POWER ON
RESET
SWITCH
OUT
28 LPOUT
27 VDD2
26 GND AM
25 AM IN
FM IN
24
23 NC
22 GND D
&
21 VDD1
20 ADDR
19
HFREF
18 AMOSC
17 DOUT/INLOCK
16 SSTOP
15
IF FM