Read Sony CDX-C780R Service Manual online
– 68 –
IC4 MB814400C-70PFTN
WRITE
CLOCK
CLOCK
GENERATOR
DATA INPUT
BUFFER
DATA OUTPUT
BUFFER
COLUMN
DECODER
SENSE AMP
I/O GATE
4M BIT
MEMORY
CELL
ROW
DECODER
ADDRESS
BUFFER
PRE-
DECODER
REFRESH
ADDRESS
COUNTER
COUNTER
BOARD
BIAS
GENERATOR
MODE
CONTROL
CLOCK
GENERATOR
1
CLOCK
GENERATOR
2
18
24
25
26
17
16
15
14
5
4
1
2
3
9
10
11
12
13
23
22
DQ1
DQ2
WE
RAS
A9
A0
A1
A0
A1
A2
A3
VCC
VSS
DQ4
DQ3
DQ3
CAS
OE
A8
A7
A6
A5
A4
A4
IC2 CXD2522R-T6
IC551 LC89170M-TLM
1
2
3
4
5
6
7
14
13
12
11
10
9
8
TIMING
&
SYNCHRONIZATION
SIGNAL
PROTECTION
32 WORD X 8 BIT
DUAL PORT RAM
DUAL PORT RAM
CRC
CHECKER
CPU INTERFACE
VDD
VDD
DQSY
SRDT
SCLK
SW2
SW1
TEST
EXCK
SBSO
SCOR
WFCK
MCK
XMODE
GND
SDTO
XSOE
SCK
SDTI
XLT
XRDE
XWRE
OSCE
A5
A6
A7
SPSL
VSS
35
36
A8
XOE
33
34
37
39
A4
38
40
41
42
43
44
45
46
47
48
32
20
21
22
23
25
26
27
29
30
31
24
XCAS
D4
D3
D0
28 D1
XWE
XRAS
XRAS
A9
VDD
A0
A1
A2
A3
17
18
19 C176
DOUT
LRCK
4
5 6
7 8 9 10 11
13
14
15 16
12
XROI
RFCK
GTOP
1
2 3
WFCK
DIN
C4M
BCKI
VSS
DATI
LRCI
WDCI
XTAO
TEST
XTAI
BCK
DATA
49
50
51
52
52
53
54
55
54
55
56
57
61
62
63
64
58
59
60
60
XEMP
XWIH
AM4
AM3
AM2
AM1
AM0
AM0
VDD
XQOK
GSCR
SCOR
SCOR
NC
NC
NC
NC
GRST
XRST
DRAM
I/F
SELECTOR
TIMING
GEN.
DAC
I/F
DIGITAL
OUT
CPU I/F
ADDRESS MONITOR
VWA
READ
BASE
COUNTER
WRITE
BASE
COUNTER
DATA
LINKING
CONTROL
DSP
I/F
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