Sharp XL-70 Service Manual page 42

XL-70/70C
IC701 RH-iX0026SJZZ: System Control Microcomputer (IX0026SJ) (2/2)
Terminal Name Input/Output
Pin No.
54 SEG46 P63/A3
55 SEG45 P64/A4
56 SEG44 P65/A5
57 SEG43 P66/A6
58 SEG42 P67/A7
59 SEG41 P70/A8
60 SEG40 P71/A9
61-64 SEG39 P72/A10- Input/Output
SEG36 P75/A13
65 SEG35 P76/A14
66 SEG34 P77/A15
67 SEG33 P87/D7
68 SEG32 P86/D6
69-74 SEG31 P85/D5-
SEG26 P80/D0
75-100 SEG25-SEG0
IC701 RH-iX0026SJZZ: System Control Microcomputer (IX0026SJ)
COM3
O
COM2 O
COM1
O
COM0 O
VLC3
VLC2
VLC1
VDD
OSC2
O
OSC1
I
VSS
XI
I
XO O
MMOD
I
VREF-
CLID_SW
I
KEY1 I
KEY2
I
MODEL I
CLID_PRO
I
CD_CONF I
TAPE_SW
I
VSM I
VREF+
DI O
Output Electric JOG dial UP.
Output Electric JOG dial DOWN.
Output Electric CD lid OPEN.
Output Electric CD lid CLOSE.
Input CD pickup position detection SW input. "L" = Innerst periphery
Output Reset signal output for TC9462F
Output ON/OFF output terminal of CD servo control IC. "H" = Servo ON, "L" = Servo stand-by
Data input/output terminal for TC9462F control.
Output Data synchronous clock output for TC9462F.
Output Chip enable terminal for TC9462F. "L" = BUS terminal active
— LCD segment output.
— LCD segment output.
— LCD segment output
Note:
Since RH-******SJZZ, SEG0 of the LCD is connected by the 24-pin LCD to SEG7 of the
microcomputer output terminal, and connections are made up to the shift SEG26 in order.
— LCD segment output
Note:
Since RH-******SJZZ, SEG0 of the LCD is connected by the 24-pin LCD to SEG7 of the
microcomputer output terminal, and connections are made up to the shift SEG26 in order.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Figure 42 BLOCK DIAGRAM OF IC
Function
– 42 –
S
75 SEG25
S
74
SEG26
S
73 SEG27
S
72
SEG28
S
71 SEG29
S
70
SEG30
S
69 SEG31
S
68 SEG32
S
67 SEG33
O
66 CCE
O
65 BUCK
I/O
64 BUS3
I/O
63 BUS2
I/O
62 BUS1
I/O
61 BUS0
O
60 CD_STB
O
59 CD_RES
I
58 PU-IN
O
57 CLID_DW
O
56 CLID_UP
O
55
MVOL_DW
O
54 MVOL_UP
O
53
MVOL_IND
52
O
51 B-LIGHT