IBM 5280 Manual page 239

5285 COMMUNICATIONS MAP
MAP 3015-1
OTHER COMM PROBLEMS
PAGE 1 OF
4
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MAP
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MAP ENTRY
NUMBER
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POINT NUf1BER NUMBER NUf'1BER NUMBER
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3010
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A 1 001
3
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00'1
(ENTRY POINT A)
PROBLEMS WHICH THE MAPS AND MDIS CANNOT FIND.
- Some failure conditions exist
which the MDIs and MAPs cannot
find because they do not cause
an observable error.
Examples:
006 0600
008 0600
013 0600
009 0800
010 0800
1. If 'Rate Select' is in the wrong state the symptom will be:
A
A
A
A
A
The system is running slow, or performance is affected in an
adverse way (different from that which the customer expects).
2. I f ' D a t a Set Rea dy' i sop en, the 1 ; n e may flo at tot h e
correct polarity and there will be no error.
3. Other problems that cannot be found by diagnostics are
added here for your information. Customer reported error
codes 4206, 4207, 5206, and 5207.
4. When all else fails to fix the problem, replace FRUs in the
following order until the problem goes away.
1 - the feature line adapter card.
2 the communications MPU card.
3 - the internal cable.
4 - the external cable.
5 - call for assistance.
For these and intermittent problems use the methods listed in Note 1:
Note 1: DEALING WITH INTERMITTENT COMMUNICATIONS PROBLEMS.
(Step 001 continues)
Copyright IBM Corp 1980
EC840S74
PEC839787
MAP 3015-1