IBM 3101 Maintenance Information page 13

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Port 2
Port 3
Port
4
Port
5
.......
Video Element port
AUX
Device port
EIA/C-Loop Communication port
Keyboard Element port
1. Set the setup switches on the Keyboard Element as indicated in
each Test table and Figure 2-1.
2. Connect the Test Set (jumpered)
to
the port 4 as indicated in
each Test table and Figure 2-1.
3. Turn
TEST/NORMAL switch
to TEST
and then
return to
NORMAL
prior to doing each action (to reset to initial condition).
4. Do each action and verify expected result.
·
- If the results are NOT as expected, replace the Logic board.
- If the results are good, go to the next
check~
• Communication (EIA)
Port Test
Notes:
1.The test
1 can be skipped
if online test is
done with
Series/1.
r - - - r -
2.The tests
1, 3,
4,
and
5
can
be
skipped
-~f
online
~est
is done with Maintenance Device.
,-----
I 'IST I Setup switch I Action
I
Expected
I
Tested
I
I
r
/ Test set
1~
"' .
I
result·~--.·
I function t·
I-
-+
--+
-+
I
i
I
1
I Setup
1
I
I Pre s's characte_r keyf Character is
I
I
I
Test set 1
I
Check display
I
displayed ·
I
I-
I
+
~
I 2 I Setup
1
I
!Press alphabetic
I Light
20
(DTE) is
I
I
I
Test set 1
I
p
and
D
with
I
off briefly
I
I
I
I ALT key held down I
I FDX
1--·-+
I
I
3
I
Setup 1 I
!Press character key( Character is
I
I
I
Test set 2
I
Check display
I
·.not displayed
I
I
---+
I
I
I
4
Setup 1 I
!Press character keyt LOCK-LINE CHECK 1
I
I
I
Test set 3
I Check display
I
is displayed
I
1---+
-+
I
I
I 5 I Setup 2 I
Observe Test
I Light 4 (P.TS).
- -
I HDX
I
I
I
Test set 2
Set light
I
is off
I
I
L
----
..
11/10/79
2-5

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