A
B
C
D
E
F
G
H
I
L
M
N
O
P
Q
R
S
T
U
J
K
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
20
11
VA-3
Jan, 2001
TO FDD UNIT PC/AT
XREADY
FDS3
XINDEX
XINP
XINP
XINDEX
XINP
FDS3
XINDEX
XFDCRST
XINP
XWRL
XINDEX
XFDC
XDS0
XDACK1
XFDCINT
XDREQ1
XFDCDEND
XIDXINT
RDYCNTL
XRDATA
XWDATA
FDS0
XRDATA
FDS1
XTRK0
XHDIR
FDS1
XTRK0
XSTEP
XSTEP
XHSEL
XRDATA
XTRK0
XWPRT
XWDATA
XHDIR
XHSEL
XWGATE
XWGATE
XWPRT
XWPRT
FDS1
XDS3
XHSEL
FDS0
XWPRT
XTRK0
XWGATE
FDS1
XHDIR
XWDATA
XSTEP
XRDATA
XRD
FDS2
FDCCONT
FDS2
XREADY
XREADY
A1
A0
D4
D3
D1
D6
D0
D7
D5
D2
5VD
5VD
5VD
5VD
5VD
5VD
D
D
D
D
D
D
D
D
D
D
5VD
5VD
D
D
5VD
D
R67
0s
R69
10Ks
R76
10Ks
R81
10Ks
R82
10Ks
R83
10Ks
R74
1Ks
R75
1Ks
R79
1Ks
R78
1Ks
R77
1Ks
R73
NIU
R80
10Ks
X2
16MHz
MA-406
TP
TP14
niu
C128
NIU
CN17
34 P MALE CONN. P.1,27
5
7
9
11
13
15
3
1
17
19
21
23
25
27
29
31
33
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
IC16
HD63266-FP-64A
9
8
19
18
17
16
15
14
13
12
3
4
5
6
21
20
7
22
39
40
36
37
1
2
28
26
27
38
43
63
62
61
58
57
56
52
30
34
55
60
51
50
48
47
33
32
35
53
31
24
25
29
44
45
46
10
11
23
41
42
49
54
59
64
RS1
RS0
D7
D6
D5
D4
D3
D2
D1
D0
RESET
E,RD
R/W,WR
CS
IRQ
DREQ
DACK
DEND
XTAL1
EXTAL1
XTAL2
EXTAL2
8"/5"
XTALSEL
IFS
NUM1
NUM2
NC
NC
MON3
MON2
MON1
DS3
DS2
DS1
HLOAD
INP
INDEX
DS0
MON0
HDIR
STEP
WDATA
WGATE
TRK0
WPRT
RDATA
HSEL
READY
1/2EX1
VCC1
SFORM
VCC2
VCC3
VCC4
VSS1
VSS2
VSS3
VSS4
VSS5
VSS6
VSS7
VSS8
VSS9
C141
10pFs
C135
47pFs
C125
NIU
C123
100nFs
C120
100nFs
TP
TP9
niu
C142
10pFs
C129
NIU
C131
NIU
C124
NIU
C126
NIU
C134
47pFs
C132
NIU
C130
NIU
C122
100nFs
C133
NIU
C127
100nFs
C119
100nFs
IC14
TC7S32F
1
2
4
5
3
IC23A
TC7W14F
1
7
IC23D
TC7W14F
8
4
IC23C
TC7W14F
6
2
IC23B
TC7W14F
3
5
R71
10Ks
IC15
TC7S08F
1
2
4
5
3
C121
10nFs
R68
10Ks
RDYCNTL
FDCCONT
XDACK1
XDREQ1
XFDCINT
XFDC
XWRL
XRD
XFDCDEND
XIDXINT
A[0..1]
D[0..7]
XFDCRST
CIRCUIT DIAGRAM (MAIN PCB ASSY/ LCD Contr. Block)
DATA BUS
CONTROL BUS
LCD CONTROL BUS
10MHz
VD0
VA0
VA14
VD1
VA1
VA13
VD2
VA2
D7
VA12
VD3
VA3
D6
VA11
VD4
VA4
D5
VA10
VD5
VA5
D4
VA9
VD6
VA6
D3
VA8
VD7
VA7
D2
VA7
VA8
D1
VA6
VA9
D0
VA5
VA10
VA4
VA11
VA3
VA12
VA2
VA13
XRD
VA1
VA14
XWRL
VA0
XLCD
XRST
VD7
VD6
VD5
VD4
VD3
XD3
VD2
XD2
VD1
XD1
VD0
XD0
XVWR
XSCL
XVRD
XCCE
YD
XRST
D
D
D
D
D
5VD
5VD
D
5VD
5VD
D
D
D
D
D
5VD
5VD
C114
100nFs
R62
NIU
C116
100nFs
R63
0s
IC11
SED1335F0B
QFP6-60 pin
17
18
29
28
27
26
25
24
23
22
20
13
14
19
10
15
16
30
31
32
33
35
34
37
38
41
40
39
50
51
52
53
54
55
56
57
58
59
1
2
3
4
5
6
42
43
44
45
46
47
48
49
7
9
8
21
36
11
12
60
OSC1
OSC2
D7
D6
D5
D4
D3
D2
D1
D0
A0
RD
WR
CS
RES
SEL2
SEL1
XD3
XD2
XD1
XD0
XSCL
XECL
LP
WF
YSCL
YD
YDIS
VA15
VA14
VA13
VA12
VA11
VA10
VA9
VA8
VA7
VA6
VA5
VA4
VA3
VA2
VA1
VA0
VD7
VD6
VD5
VD4
VD3
VD2
VD1
VD0
VWR
VRD
VCE
VDD
VSS
NC
NC
NC
IC38
TC7S04F
5
1
4
3
2
C191
100nFs
C115
10nFs
C190
100nFs
C189
100nFs
IC37A
TC7W74F
2
1
5
3
7
6
D
CK
Q
Q
PR
CR
IC36A
TC7W08F
1
2
7
IC36B
TC7W08F
5
6
3
IC36C
TC7W08F
8
4
IC37B
TC7W74F
8
4
VCC
GND
IC12
HM62256ALFP-7
256KBit RAM 70ns SOP 28 pin
10
9
8
7
6
5
4
3
25
24
21
23
2
11
12
13
15
16
17
18
19
28
14
26
1
20
22
27
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
D0
D1
D2
D3
D4
D5
D6
D7
VCC
GND
A13
A14
CS
OE
WE
D[0..7]
10MHz
XRD
XWRL
XLCD
A0
XRST
XD3
XD2
XD1
XD0
XSCL
LP
YD
DISPON
DISP_CON
XLCDINT
CIRCUIT DIAGRAM (MAIN PCB ASSY/ FDC Block)
