Service Manual

9-2. SH-1 Circuit Board
1
2
3
4
5
6
A
B
c
0
- 31-
11. PARTS SPECIFICATIC•It.JS
IC1/2
IC H06417095F28 QFP HITACHI
Parts No.: 315-0922A
•Top View
108
109
i
i
!
I
i
i
114 i
• Description
73
HD6417095
38
i
i
i
i
i
i
i
72
37
IG H06417095SF28 QFR HITACHt
Parts No. : 315-0998
No. 1/0
Pin Name
1
Dll
2
1/0
012 Data bus
3
013
4
VCCl
Power supply (SV)
5
1/0
014
Data bus
6
VSSI
Power
supply (OV)
7
015
8
016
·---
9 l/0
017 Data bus
·-
10
018
--
11
019
12
VCC2 Power supply (SV)
13
1/0
D20 Data bus
14
-
VSS2
Power supply
(OV)
15 D21
16 1/0
D22 Data bus
--
17 D23
18
VCC3 Power supply (SV)
19
1/0
D24 Data bus
-·
20
-
VSS3 Power supply (OV)
21
D25
--
22
1/0
D26 Data bus
--
23
D27
·-·
24
- VCC4 Power supply (SV)
·-
25 l/0
D28
Data bus
26
-
VSS4
Power
supply (OV)
27
D29
·--
28
I!O
D30 Data bus
29
031
30
AO
---
31
1/0
AI Address bus
32
A2
33
-
vsss Power supply (OV)
34
A3
---
35
A4
--
36
AS
37
1/0
A6
--
Address bus
---
38
A7
39
A8
-
40
- vccs
Power supply (SV)
.
-32-
Function
-