5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
EXTERNAL FDD
INTERNAL FDD
INTERNAL
FDD
POWER
CONTROL
CONTROL
3
1
2
2
3
1
PIN14
7406
PIN7
PIN14
74LS74
PIN7
PIN20
74LS244
PIN10
PIN20
74LS245
PIN10
68R X 12
8.01063 MHz
drawn by jer
1
ATARI 1040STe 03 DMA FDD CLK
C
3
8
Thursday, June 01, 2017
Title
Size
Document Number
Rev
Date:
Sheet
of
HDRW
HDA0
HDACK
HD7
HD6
HD5
HD4
HD3
HD2
HD1
HD0
S0SEL
RDATA
WPRT
TR00
WGATE
WDATA
STEP
DIRC
MON
INDEX
D1SEL
CD [7:0]
CD7
CD6
CD5
CD4
CD3
CD2
CD1
CD0
CD1
CD2
CD3
CD4
CD5
CD6
CD7
CD0
DATA [15:1]
D15
D14
D13
D12
D11
D10
D8
D9
D7
D6
D4
D5
D3
D2
D0
D1
ADDRESS [23:1]
A1
CD7
CD6
CD5
CD4
CD3
CD2
CD1
CD0
SCLK
FDINT
D0SEL
XHDINIT
HDCS
BD0SEL
HDRESET
XRESET
D0SEL
HDRQ
SCLK
CLK2
RDY
XFCS
RXW
VCC
+12V
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
R305
1k
U301
WD1772
5
6
7
8
9
10
11
12
3
4
2
1
28
13
18
15
14
22
21
25
26
17
16
23
19
20
24
27
DAL0
DAL1
DAL2
DAL3
DAL4
DAL5
DAL6
DAL7
A0
A1
R/W
CS
INTRQ
MR
CLK
VCC
GND
WD
WG
WPRT
DDEN
DIRC
STEP
TR00
RD
MO
IP
DRQ
R321
U304A
74LS74
2
3
5
6
4
1
D
CLK
Q
Q
PRE
CLR
R310
47
L304
R318
U302
74LS245
2
3
4
5
6
7
8
9
19
1
18
17
16
15
14
13
12
11
A0
A1
A2
A3
A4
A5
A6
A7
G
DIR
B0
B1
B2
B3
B4
B5
B6
B7
R301
1k
R303
1k
L306
U305B
7406
3
4
U307
74LS244
2
4
6
8
1
18
16
14
12
11
13
15
17
9
7
5
3
19
A1
A2
A3
A4
1OE
Y1
Y2
Y3
Y4
A5
A6
A7
A8
Y5
Y6
Y7
Y8
2OE
R314
R306
1k
R322
L305
J303
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
19
21
23
25
26
27
28
29
30
31
32
33
34
18
20
22
24
J302
1
2
3
4
L303
U305C
7406
5
6
R317
R308
47
C301
u1
U2A
74LS74
2
3
5
6
4
1
D
CLK
Q
Q
PRE
CLR
C304
u1
R323
R307
1k
L311
R302
1k
U305E
7406
11
10
U304B
74LS74
12
11
9
8
10
13
D
CLK
Q
Q
PRE
CLR
L308
C305
u1
C302
u1
C306
u1
R312
L302
U300
DMA
24
4
0
20
28
38
39
1
22
2
21
3
23
36
35
34
33
32
31
30
29
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
25
37
26
27
HDCS
V
C
C
GND
GND
RDY
CLK
R/W
FDCS
A1
FDRQ
FCS
HDRQ
CD0
CD1
CD2
CD3
CD4
CD5
CD6
CD7
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
CR/W
ACK
CA1
CA2
R311
47
U305F
7406
13
12
R304
1k
U305D
7406
9
8
R316
U303
OSC
1
4
8
7
V
C
C
OUT
G
N
D
C307
u1
L307
L310
L300
J304
1
2
3
4
5
6
7
8
9
10
11
12
13
14
J301
DMA PORT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
W300
R315
R320
L301
R309
47
U305A
7406
1
2
R319
W301
L309
R300
1k
C303
u1
R313
Содержание 1040STE
Страница 1: ......
Страница 2: ...II Atari STe 520 1040 Computer Field Service Manual Part Number C302481 001 Rev A August 1991...
Страница 23: ...18 Figure 2 8 STE Functional Block Diagram...
Страница 24: ...19 Figure 2 9 STE DMA Block Diagram...
Страница 28: ...23...
Страница 53: ...48 Figure 6 1 STE Diagnostic Flow Chart...
Страница 54: ...49 Figure 6 2 STE Diagnostic Flow Chart...
Страница 55: ...50 Figure 6 3 STE Diagnostic Flow Chart...
Страница 56: ...51 Figure 6 4 STE Diagnostic Flow Chart...
Страница 72: ......
Страница 73: ......
Страница 74: ......
Страница 75: ......
Страница 76: ......
Страница 77: ......
Страница 78: ......
Страница 79: ......
Страница 80: ......
Страница 81: ...ATARI STE TEST FIXTURE TO COMPUTER CONNECTION...