IBM 5280 Maintenance Information Manual page 14

331
DISKETTE DRIVE CONTROL CARD
31SD
4 1
~
PTXCP
BA
001
o
00
00
00
00
00
00
00
00 I/O CP
00
o TPB01
D
TPA01
0
TPC040
0
0 0 TPC01
oTPD01
TPE030
0
0 TPE01
TPF020 0 TPF01
TPG02 0
TPH050
o TPG01
O i~~
TPC
TPD
TPE
TPF
TPG
TPH
00
00
100 D 0 01
TH
00
00
00
00
oTPHLD
0018
o TP24V
IOIB
~A
2 1
LEDCP
TH01
TH02
TH03
TH04
TH05
TH06
o TPLED
SCP
4 1
~
D,jf Read B
Nu Pin
Dill Read A
Not ASSigned
·Dlsable Steppel Motol
+18 V
2 Locations
D
TPA01 -5 Vdc
TPG01
TPB01 ·5 Vdc TPG02
TPC01 -<-Access 1 TPH01
TPC02
31S0 PTX
TPH02
TPC03
Wllte
Data
TPH03
TPC04 Glouno
TPH04
TPD01 +Inncr Tracks
TPH05
TPE01 -tAcCt.)sS 0
TPAMP1
TPE02 +Head Engage
TPAMP2
TPE03 +Inclex
TPHLD
TPF01 Ground
TP24V
TPF02 -tWine Elase Enahll'ci
TPLED
TPH04 0 0 0 0 TPH01
o
TPAMP 1
o
TPAMP2
DD
7
HCP
1000 0 0
1
+FrJe Data
+Erase Gate
MC-3
MC·2
MC·1
MC·O
+Wrrte Gate
Preamp TP1
Preamp TP2
·Head Load
+24 Vdc
31SD LED Voltage
331
6 1
10000 01
SMCP