Sony XES-Z50 Service Manual page 112

– CHANGER Board –
IC302 AT24C32N-10SI-TR
START/
STOP
LOGIC
SERIAL
LOAD
DEVICE CONTROL
COMP
ADDRESS LOGIC
COMPARATOR
A0 1
A1 2
A2 3
DATA WORD
R/W
ADDRESS/
COUNTER
DECODER
VSS 4
D OUT
IC304 CXK581000AM-10LL
LEVEL
BUFFER
SHIFT
NC 1
2
A16
3
A14
4
A12
A7 5
6
A6
7
A5
8
A4
LEVEL
A3 9 BUFFER
SHIFT
A2 10
A1 11
A0 12
I/O1 13
LEVEL
BUFFER
SHIFT
I/O2 14
15
I/O3
GND 16
8
7
6
H.V.
EN
PUMP/
TIMING
DATA
RECOVERY
X
EEPROM
DECODER
SERIAL
MUX
Y
D OUT/
ACK
LOGIC
D IN
5
32 VCC
31 A15
30 CE2
29 WE
28 A13
27 A8
26 A9
25 A11
24 OE
23 A10
22 CE1
21 I/O8
20 I/O7
19 I/O6
18
I/O5
17 I/O4
I/O BUFFER
IC401 CXD2512AQ
VCC
WP
80 79
SCL
GRSRST 1
2
XRST
WFCK 3
DATA
DIN 4
LINKING
5
C4M
CONTROL
XROI 6
7
RFCK
GTOP 8
9
BCKI
DATI 10
DSP
11 I/F
LRCI
12
VSS
WDCI 13
14
TEST
SDA
XTAO 15
XTAI 16
17
(BC)
18
(TCK)
(TDI) 19
20
(TENAI)
(TDO) 21
VST 22
23
BCK
DAC DIGITAL
OUT
I/F
DATA 24
25 26
– 163 –
78 77 76 75 74 73 72 71 70 69 68 67
SUBQ TBC
CPU I/F
CONTROL
4K BIT RAM
ADDRESS
MONITOR
VWA
WRITE
TIMING
BASE
GEN.
COUNTER
READ
BASE
COUNTER
SELECTOR
DRAM I/F
27 28 29 30 31 32 33 34 35 36 37 38 39 40
66 65
64 SDTO
63 XSOE
62 SCK
61
SDTI
60
EXPXLT
59 XRDE
58 XWRE
57
SPSL
56 OSCE
55 A4
54 A5
53
A6
52 VSS
51 A7
50 A8
49 XWE4
48
XWE3
47 XWE2
46 XOE
45
XCAS
44 D3
43 D4
42
D1
41 D2