Sansui CD-E770 - Page 3

CD-E770
2. INTERIOR BLOCK DIAGRAM & TERMINAL FUNCTION OF IC
• CXP5014<DisplayControl>
Pin No. Pin Name
1/0
Function
ACTIV
Pin No. Pin Name
1/0
Function
H L
1
SI
1
Indication data from system control
O
2-5 PD0-PD3
1
GND
6 PCO
1
Timer play switcti,
SW4
O
7-9
PC1-PC3
1
GND
10 PFO
1 Changing switcti for indication duty,
SWO
11
PF1
1 Changing switch
for indication duty, SW1
12 PF2
1 FL display check mode switch,
SW2
13 PF3
1 FL display check mode switch,
SW3
14-17 PF0~PF3 1/0
Data bus tïetween CXP5014 & system control
O
18 PBO O
Ready to received from system control
O
19 PB1 1
Transmit strobe from system control
O
20
PB2 Ready
to send from system control
O
21 PB3 Transmit strobe to system control
O
22 PAO O SSB Output terminal
O
23
PA1
1
SSB Input terminal
26
VDD
27
GND
28-43 S0~S15 O
Segment
for FL Display
O
44-51
T7~T0 O Gnd
O
52 VFPP
1
-26V
53 INT1
1
Pull down
55
EXTAL
1
4.2336
MHz
O
56 RST
1
O
58
VDD
1
+5.0V
60 PY2
1
Indication enable
O
62
SC 1
Indication doek from system control
O
• MB8416-20AC5517AP-2/|iPD446C-2/
UM6116-2/CXK-5816 <RAM>
A O O-
Memory Cell Arroy
128
X 128
I/O
I o-
I/Oz O-
1/03 O-
1/04 O-
1/05 O-
1/06 O-
I/O
7 O-
I/Oe O-
ó
A7
ó
As
ó
A9
1 1
Sense Amp
Colu
mn
D
scoder
•CXP5043 <Mechanism Control Micro
Computer Function>
-O VDD
-O GND
Pin
No.
1/0
Por
Function
ACTIVE
DIP
1/0
Por
Function
H L
17
0 MACK
O
19
0
Line Mute
O
13
1
S ACK
O
14
1
S REQ
O
15 0 0 INT
O
16
0
M stb
O
9
1/0
CMD 0
O
10
1/0
CMD 1
O
11
1/0
CMD 2
O
12
1/0 CMD 3
O
5
1 Tray
Out Sw
O
6
1 Tray
In Sw
O
7
1 Pic
Sw
O
22
1 FOK
O
23
1 GFS
O
24
1 SENS
O
25
1
26 0
MUTG
O
27
0
Data
O
28 0
XLT
29 0
CLK
30 0
LDC
O
31
0
System Reset
O
32 0
Emphasis
O
33 0
Emphasis
O
1
SC
WFCK (SQCK)
2
3
4
SI Sub
Q
38 0
Tray
M®
O
39 0
Tray
M0
O
40
1 Stand
By
41
1 Test
Nor.
Test
37 1 SCOR
O
ó
A 10
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O O O O O
Pin Name
Ao~ Aio
Address input
R/W
Read/Write input
ÖF
Output Enable Input
CË
Chip Enable Input
l/Ol -1/08
Data Input/Output
VDD/GND
Power Terminal
2