IBM 3277 Troubleshooting Manual page 117

Display station models 1 and 2
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retainer may have to
be
repositioned to maintain a snug
connector fit.)
4.
Connect cable ground strap to the chassis.
8.2.2.2 Selector Light-Pen Installation
1.
Place pen holder next to display station.
2.
Insert pen in pen holder.
8.2.2.3 Operator Identification Card Reader Installation
1.
Remove front cover.
2.
Plug reader cable connector into reader jack. (Diagrams
7-1 and 7-4 show cable socket locations for Modell and
Model
2
display stations, respectively.)
3.
Secure cable by attaching nylon cable clamp (Modell)
or by hooking the cable retainer (Model 2).
4.
Connect cable ground strap to chassis.
5.
Attach correct WTC language feature label over English
language label if applicable.
8.2.3
Prepower-On Checks
1. Remove front cover if it was not previously removed to
install feature(s).
2. Plug line cord into display station chassis jack.
8-2
3. Open side covers.
4.
I nspect for loose cords in logic gate and for loose cable
connections.
8.2.4
Power-On Checks
1.
Plug line cord into power source, and pull out OFF-
PUSH switch.
2.
Perform the display station operational test described in
paragraph 5.1.2, beginning at step
3.
3.
Refer to Section
3
(Symptom Index) if a malfunctior
occurs during power-on check procedure.
4.
Refer to paragraph 5.2 if any adjustments are required
during power-on check.
5.
Connect control unit signal cable.
6.
Replace all covers previously removed except front
cover.
8.2.5 Hexadecimal
Address
Label
1. On front cover, locate a point 3 inches up from bottom
edge and 1/2 inch in from left edge.
2. Attach label to cover, parallel
to
bottom
edge,
with
lower-left comer of label on the point located in step 1.
3. Replace front cover.

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