Ic Block Diagrams - Sony SDP-EP70 Service Manual

4-17. IC BLOCK DIAGRAMS

• Main section
IC202 AT24C02N-10SC
1
DATA REGISTER CK
NC
8
YDEC
2
2
NC
32
2
NC 3
E PROM
32 XDEC
61x61
V 4
SS
H. V. GENERATION
TIMING & CONTR OL
START CYCLE
IC301 LC8905VD
1
DIN1
DIN2 2
INPUT
DEMODULATION
3
E/DOUT
4
VDD
PLL
5
R
VIN 6
7
VCO
GND 8
TIMING
CKSEL 9
XMODE
10
AVOCK 11
TEST1 12 TEST
IC302 TC74HC153AF
DATA INPUTS
STROBE A
V 2G SELECT 2C3 2C2
CC
16 15 14 13 12
2C3 2C2
2G
1G
1C3 1C2 1C1
1 2 3 4
STROBE B 1C3 1C2 1C1
1G SELECT
DATA INPUTS
DREF
ACK
PIN
R/W
5
WOR O
ADDRESS
COUNTER
LOAD
INC
CONTROL
LOGIC
START
STOP
LOGIC
LOCK ERROR
DATA
DET
MUTE
OUTPUT
3
3
C BIT SUB-Q
DET DET
MICOM
INTERFACE
OUTPUT
2C1 2C0 2Y
11 10 9
2C1 2C0 2Y
B B A A
B B A A
1C0 1Y
5 6 7 8
1C0 OUTPUT GND
1Y
8 8
V
CC
7
TEST INPUT
6
SCL
5
SDA
24 ERROR
23
DATAOUT
22 LRCK
21 BCK
FSI28
20
19 CKOUT
18 DQSY/LD
17 SRDT/DO
16 SWDT/DI
15 XLAT/CE
14 SCLK/CL
13 TEST2
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