Sony CDX-715 Service Manual page 31

IC202 AT24C16N-10SI-TR (MAIN BOARD)
START/
STOP
LOGIC
CONTROL
LOGIC
SLAVE ADDRESS
REGISTER &
COMPARATOR
A0
1
A1
WORD
2
A2 ADDRESS
3
COUNTER
DEVICE
ADDRESS
R/W
BITS
4
VSS
D OUT
ACK
IC401 CXD2522Q (MAIN BOARD)
51 50 49 48 47 46 45
XWIH
52 CPU I/F
AM4 53
AM3 54
ADDRESS MONITOR
AM2 55
56
AM1
WRITE
AM0
57
BASE
VDD 58
COUNTER
XQOK 59
READ
BASE
COUNTER
GSCR 60 DATA
LINKING
SCOR 61 CONTROL
NC 62
NC 63
NC 64
1 2 3 4 5 6 7 8
VCC
START CYCLE
H.V. GENERATOR
NC
TIMING & CONTROL
SCL
EEPROM
X
DECODER
128 x 16 x 8
4 16 16
4
Y
DECODER
8
8
CK
D OUT
DATA
D IN
REGISTER
SDA
44 43
42 41 40 39 38 37
DRAM
VWA
SELECTOR
TIMING
GEN.
DSP
I/F
DAC
I/F
9 10 11 12 13 14 15 16 17 18
IC302 BA8272F-E2 (MAIN BOARD)
8
7
14 13 12 11
6
1 2 3 4
5
36 35 34 33
32 D3
31 D0
30 D1
29 XWE
28 XRAS
A9
27
I/F
26 VDD
25 A0
24 A1
23 A2
22 A3
21 C176
DIGITAL
DOUT
20
OUT
19
– 43 –
10 9 8
RESET
SWITCH
5 6 7