Locator Chart (For Use With Maps) - IBM 6580 Product Support Manual

46-
CABLES, CONNECTORS, AND TEST POINTS - Figure 1
This section will aid in locating cables, connectors, and
test points in the IBM Displaywriter work station. Wire
ELECTRONICS MODULE
KEYBOARD MODULE
termination
points are also given for doing continuity
Connector/Card
GoTo Figure
Connector/Card
Go To Figure
checks.
a
(Panel 1
Printer) 2 30 Pin Connector For Pad Card 10
1 (Panel 1 - Mag Card Unit)
2
Keyboard Logic Card
10
Use the Point To Point Wiring Locator Chart (Figure 11)
2 (Panel 1 - Display Module) 2 Keyboard Cable Connector (at Logic Card)
10
for tracing wires and voltages through the Displaywriter
3 (Panel 1 - Memory Record Switch) 2 Speaker Connector
10
System. 4 (Panel 1 - Communications) 2
5 (Panei
i - Dis~ette
Signal)
2 DISKETTE UNIT
When instructed by MAPs to measure a voltage: 6A (Panel 1 - Printer Sharing 1)
2 Connector/Card Go To Figure
6B (Panel 1 - Printer Sharing 2) 2 B1
5
.
Refer to the Locator Chart (Figure 1) to find the
7 (Panel 1 - Keyboard)
2 B2
b
name of the card or connector to be measured. The
8 (Panel 2 - AC Output)
3
-B3
5
cards and connectors are listed by module.
9 (Panel 2 - AC Input) 3 B4
5
10 (Diskette DC) 3
AC Fan Connector
II,IIA,IIIS
.
Refer to the figure number in the "Go To Figure"
11 (Communications)
3 AC Cable ana Connectors
II,IIA,IIIS
column for the location of the connector or card
A1
4 Diskette Adapter Card 5
test point to be measured.
B1
4
-file Control Card (Type 1 Drive) 6
Signal Ground
C1
4 File Control Card (Type 20 Drive) 7
is to be used when measuring
voltages.
01
4 File Control Card Connector
6,7
Frame Ground is earth ground and is used only for elec-
Ll
4 Head Connector (Type 1 Drive)
6
trostatic discharge grounding. The use of frame ground
P1
3
Head Connector (Type 20 Drive) 7
when measuring
voltages should only be used when
P2
3 LED Connector (Type 1 Drive)
6
instructed by MAPs.
S1
4 LED Connector (Type 20 Drive)
7
S7
4 PTX Connector (Tv De 1 Drive) 6
Warning: Only use a Fluke* digital multimeter or it's
Distribution Board
4
PTX Connector (Type 20 Drive) 7
equivalent for all voltage readings while servicing the IBM
Solenoid Connector
(TYpe
1 Drive) 6
Displaywriter System. The use of any other multimeter
Solenoid Connector (Type 20 Drive) 7
to check voltages may cause circuit damage.
Stepper Motor Connector (Type 1 Drive) 6
Stepper Motor Connector (Type 20 Drive) 7
*Trademark of John Flu ke Manufacturing, Inc.
Note: Figures 9, 9A, and 9B are the AC voltage ground-
ing path schematics. These figures also show the physical
locations of the AC grounds.
Locator Chart (For Use With MAPs)