IBM 6580 Product Support Manual page 88

1~
SMCP
6 D o TPCTO
o
o
TrCT1
HCP
TPA01
--+--0
TPA02--+-- 0
TPA03:--r--o
TPA04,--t--o
TPA05--0
D
TPAMP10
TPAMP20
B
14
TPB01
TPB02
TPB03
TPA06
TPB04
TPB05
TPA07
TPB06
TPA08
TPA09
TPA10
PTXCP
0
0
0
oTPD01
0 0 0 TPC01
o o TPC02
o 0 TPC03
0
oTPD02
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D
8
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8
8
8
B8
~ 1
SCP
o
4
0
1
0 _
LEDCP
o.
6
Test
Line
Points
Names
TPA01 MC-3
TPA02 MC-1
TPA03 MC-2
TPA04
MC-O
TPA05 Ground
TPA06 +Erase Gate
TPA07
Ground
TPA08 -Head Load
TPA09 +5 VDC
TPA10 D2 PTX
TPB01 +24 VDC
TPB02 Ground
TPB03 +Select Head 1
TPB04 +Write Gate
TPB05 +Head Engage
TPB06 Write Data
TPB07 D1 PTX
TPC01
+AccessO
TPC02
+Inner Tracks
TPC03
-5VDC
TPD01 +Access 1
TPD02 +Switch Filter
TPE01
+Index
TPF01
+Diskette Sense
TPG01 +Write/Erase Enabled
TPH01 +File Data
TPLD2
D2 LED Voltage
TPLD1 D 1 LED Voltage
TPAMP2
Preamp TP2
TPAMP1
Preamp TP1
TPCTO Center Tap Head 0
TPCT1
Center Tap Head 1
Test
Line
Points
Names
TH01 Diff Read B
TH02
No Pin
TH03 Diff Read A
TH04 Not Assigned
TH05
-Disable Stepper Motor
TH06
+18V
PTXCP - PTX Connector Pins
I/O CP - I/O Connector Pin
LEDCP - LED Connector Pins
SCP - Solenoid Connector Pins
HCP - Head Connector Pins
SMCP - Stepper Motor Connector Pins
LED (light Emitting Diodel
PTX (Photo Transistor)
SMCP (Stepper Motor)
I/O (File Control Card)
Diskette Unit File Control Card Connectors and Test Points - Type 2D Drive
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