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4 . 0
C A B LE CHECKS
This chapter provides information that can assist you in checking the
replaceable cables in the IBM 9001 .
perform these checks .
whether there are any broken wires , frayed or cut insulation, or bent or
broken connector pins .
must be replaced.
This chart provides a cross reference o f replaceable cables to specific
sect ions o f this chapter where point-to - point data is provided .
connections
between the p l anar board
printer/plotter control board are also shown ; these permit you to check
an as sembled system .
Figure 4 - 1 .
For cable diagram o f cable checks , see Figure 4 - 2 .
Not e :
The printer/plotter control board i s abbreviated in the chart as
"P/P ctr l board , " and diskette drive is "d . drive . "
Origin
Device
CRT
Softkeys
D . drive
in
CRT
Si" d . drive
sf' d . drive
Sf' d . drive
8 11 d . drive
8 11 d . drive
8 11 d . drive
Keyboard
(Cont inued on next page)
Y ou need the volt - ohm multimeter to
First , visua l ly inspect the cables to determine
If you discover any o f these problems , the cable
For connector pin ident i ficat ion and location, see
! Connector
Device
ctr l
I
I P/P
I
I P/P
ctrl
I
I P/P ct r l board
1 8 " d . drive
I
! P lanar board
I
I
! P lanar
! S ignal
! P lanar
I
! P lanar
I
I Planar
J 1
I
I Planar
connectors
and
those
Destination
I Connector I
board
l lOO
I P/ J
board
I P/ J
l lOO
l lOO
I P/ J
I P/ J
l lOO
3
I P/ J
4
board
I P/ J
board
I P/J
3
4
board
I P/ J
8
board
I P/ J
board
I P/ J
s
Cable Checks 4 - 1
Inter
on
the
Sect ion
1
4 .
"
"
II
II
II
II
II
4 . 1
4 . 3
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