Sharp FDD-412A Service Manual page 63

C59
FDD412A/B
Table 4.2 J3 Connector Wiring Arrangement
Signal Name Signal Name
[FILE PROTECT (+50) | 2| FILE PROTECT LED GRD
| FILE PROTECT (sensor output) | 4 | TRACK 00 (+5V)
| track 00 'eeaser outpuc) | 6 TPRACK 00 LED GRD
FINDEX LED —(+5V) | | INDEX LED GRD
4
}INDEX 1 (sensor output) | 10 | INDEX 1/2 GRD
(sensor output) { 12 | DISPLAY LED 1
—
13 | DISPLAY LED 2 | 14 | DISPLAY LED GRD
DOOR SWITCH OPEN "| 16 | DOOR SWITCH GRD
17 [DOOR SWITCH CLOSE }18 | STEP MTR + (black)
19 |STEP 4 (red) | 20 | STEP 1 (blue)
21 ISTEP 2 (yellow) | 22 | STEP 3 (white)
{HEAD LOAD SOL - 24 | DOOR LOCK SOL +
JHEAD LOAD SOL + | 26 4DOOR LOCK SOL -
28 |
Wire routing
Protect}.
Head sensor,
Protect sensor
O sensor, _
Index LED, f late
t
Step mo ory ff
— ae
Door switch
i
vn
qi
rd
pron aa
ree Fae
Indicator Fig. 4.5 Wire Routing in FDD
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