IBM 3274 51C Maintenance Information page 44

Map A50 TYPE A ADAPTER
FAllU R E Code 0011 or 0100
PAGE 1 OF 3
ENTRY POINTS
FROM ENTER THIS MAP
MAP
NUMBER
ENTRY
POINT
PAGE
NUMBER
STEP
NUMBER
No entries in this table
001
(Entry Point A)
**********MAP SUMMARY**********
Maintenance concepts for type A adapter failure.
This MAP is entered from Chapter
2,
Step
4,
Figure
2-3
(Failure
code to card replacement) After cards that can cause TYPE A
ADAPTER failure codes 0011 or 0100 were replaced, this MAP is
used to isolate a failing 3278/3279 display that can also cause a
TYPE A ADAPTER failure code.
CAUTION
Before removing cards or cables switch power off.
Is the IML test failing with error code 0011 or 01007
Y N
002
You are in the wrong MAP, go back to subsystem isolation
start. (Chapter
2).
003
• At the 3274 device coax panel, disconnect coax cable at address
port AD. *A*
• Run the IML tests. *B*
Does TYPE A ADAPTER test 0011 or 0100 still f8117
Y N
2 2
A B
MAP A50-1
EXIT POINTS
EXIT THIS MAP TO
PAGE STEP MAP ENTRY
NUMBER NUMBER NUMBER POINT
2
005
AIOO A
2
010 AI00 A
3
011 AI00 A
*A* Display station at address port AD is the only location used
for the IML/TYPE A ADAPTER test. NOTE: only
3278/3279
display can be attached to port AD.
*B* Determine if TYPE A ADAPTER failure is caused by
interaction with attached
3278/3279.
Chapter 3. Maintenance Analysis Procedures 3-17