Brother BAS-415 - Page 97

Main circuit board
Connect to;
Connector Pin No. Signal
Pin No.
P10
1
+5V
1
2
XINDEX
2
X home position sensor
(X-ORG)
3
RET
3
p 11
1
+12V
1
2
STINT
2
Thread breakage detector
(TH. BRK)
3
±OV 3
1
+5V
----------
2 L-SEEK 4 CAP-ON
P12
3 RET
----------
Cap sensor
(SEEK)
4
+5V
1
+5V
5
R-SEEK 2 CAP-OVER
6 RET
3
RET
2
2HD/2DD
33
4 RESERVED
31
6
DRIVE SEL3
29
8
INDEX
27
10 DRIVE SELO
25
12
DRIVESEL1
23
14
DRIVESEL2
21
16 MOTOR ON
19
18
DIRECTION 17
P13
20 STEP
15
3.5" floppy disk drive (FDD)
(FDD)
22
WRITE DATA
13
24
WRITE GATE
11
26
TRACKOO
9
28
WRITE PROTECT
7
30 READ DATA
5
32
HEAD SELECT
3
34
DISK CHANGE
1
1.3.
5. 7. 9.
2. 4. 6. 8. 10.
11. 13. 15.
12. 14. 16.
17.19.21.
SIGNAL RETURN ( ± 0)
18. 20. 22.
23.25. 27.
24.26.28.
29.
31.33
30.32.34
P14
1
+5V
1
(FDDPOWER)
2
±OV
2
3.5"
FDD power supply
1 FG (±OV)
1
P15
2
so
3
Paper tape reader or editing
(RS232C) 3 RD
2
system
4
RTS
5
-94-
From the library of: Superior Sewing Machine & Supply LLC