Sony CDX-C880 Service Manual page 43

QQ
3 7 63 1515 0
IC4 MB814400C-70PFTN
DQ1 1
DQ2 2
WE 3
WRITE
DATA INPUT
CLOCK
GENERATOR
CLOCK
GENERATOR
2
DECODER
CLOCK
GENERATOR
1
MODE
RAS
4
CONTROL
A9 5
A0
9
A1
10
A2
11
A3 12
VCC 13
TE
L 13942296513
IC2 CXD2522R-T6
XEMP 49
50
XWIH
AM4 51
AM3
52
AM2 53
54
AM1
55
AM0
VDD 56
57
XQOK
GSCR 58
SCOR
59
NC
60
NC
61
NC
62
GRST
63
XRST 64
www
1 2 3
.
http://www.xiaoyu163.com
DATA OUTPUT
BUFFER BUFFER
4M BIT
COLUMN SENSE AMP
MEMORY
I/O GATE
CELL
ROW
GENERATOR
DECODER
REFRESH
ADDRESS PRE-
ADDRESS
BUFFER DECODER
COUNTER
47 45 44 43 42
48 46 41 40
CPU I/F
ADDRESS MONITOR
VWA
WRITE
BASE
COUNTER
READ
BASE
COUNTER
DATA
DSP
LINKING
I/F
CONTROL
x ao
y
4 5 6 7 8 9 10 11
i
http://www.xiaoyu163.com
8
IC551 LC89170M-TLM
26 VSS
25 DQ4
DQ3
24
EXCK
1
SBSO 2
3
SCOR
CAS
23
22 OE WFCK 4
5
MCK
BOARD
BIAS
6
XMODE
GND 7
A8
18
17 A7
A6
16
15 A5
14 A4
Q Q
3 6 7 1 3
39 38 37 35 33
36 34
DRAM
I/F
SELECTOR
TIMING
GEN.
DAC DIGITAL
I/F
OUT
u163
12 13 14 15 16
.
– 76 –
2 9 9 4 2 8
CPU INTERFACE
32 WORD X 8 BIT CRC
DUAL PORT RAM CHECKER
TIMING
&
SYNCHRONIZATION
SIGNAL
PROTECTION
1 5 0 5 8 2 9 9 4
32
XCAS
31 D4
30 D3
29
D0
28 D1
27
XWE
26 XRAS
25 A9
24 VDD
23 A0
22
A1
21
A2
20
A3
19 C176
18
DOUT m
17
LRCK
co
9 9
VDD
14 VDD
13
DQSY
12 SRDT
11 SCLK
10
SW2
9 SW1
8 TEST
2 8 9 9