Sony CDX-C4840R Service Manual page 40

IC601 TDA7427AD1TR
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 2
12 I C BUS
INTERFACE
SDA
13
14 BIT PROG
COUNTER
SWITCH
IF AM
14
AM/FM
IC703 LC89170M-T
EXCK 1
CPU INTERFACE
SBSO 2
32 WORD X 8 BIT
DUAL PORT RAM
SCOR 3
WFCK
4
MCK 5 TIMING
SYNCHRONIZATION
XMODE 6 SIGNAL
PROTECTION
7
GND
CHARGE PHASE
PUMP COMP
INLOCK
DETECTOR
TEST
LOGIC
16 BIT PROG
COUNTER
TIMER CONTROL
11-21 BIT PROG COUNTER
VDD
14 VDD
13 DQSY
CRC
CHECKER
12 SRDT
11 SCLK
10 SW2
&
9 SW1
8 TEST
– 54 –
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
IC803 BA8270F-E2
BUS ON
BUS ON
1
SWITCH
RESET
RST 2
SWITCH
BATTERY
BATT 3
SWITCH
CLK 4
VREF 5
DATA 6
GND 7
28 LPOUT
27 VDD2
26
GND AM
AM IN
25
24 FM IN
23 NC
22
GND D
&
21 VDD1
20 ADDR
19 HFREF
18 AMOSC
DOUT/INLOCK
17
16 SSTOP
15
IF FM
VCC
14
13 RST
BUS ON
12
11 CLK IN
10 BU IN
DATA IN
9
8 DATA OUT