Trouble!'Hooting Diagrams - IBM 3277 Troubleshooting Manual

Display station models 1 and 2
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I
Example of _
openItionr
that do
not requi .. CU:
1. CLEAR key
does
not clear buffer
to Null ••
2. CUf'IOr PCIIitl_lng keys.
3. Image
quality.
4. Image .iz •.
Display station
troubl. reportee!.
SWop coo>ciai cabl.,
betw .. n the
two
di'pl ay
stations.
No
Yes
No
Yes
No
No
Dia ..... m 4-1. Display Station Troubleshooting Diagrams (Sheet 1 of 29)
Trouble is probably in
display stotion. If further
verlfic:otlon is required to
pnlYe
trouble is in display
stotion, perform operotions
described at left.
Assume that trouble is in
displ ay station. Use
Symptom Index and
Troubleshooting Diagrams
to
resolve problem.
Originol failur. was
probably a loose cooxial
ccable connection Or on
intermittent problem
that cannot be resolved
at this tim •.
Troublelhooting DWgrams
4-3

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