IBM 3745 130, Maintenance Information Procedures

Page: 165 / 361

3745 MAPs
012 (continued)
Did the diagnostics run error free?
Yes No
013
Go to “Action to Take After a
Diagnostic Run or an FRU
Exchange” on page 4-99.
014
– Ask the operator to put the channel
offline from the host.
– Interface cables must be removed
from the 3745.
– Run routines LG02, LI03, LI04,
LJ03, LK02 and LO01 which need
manual intervention. Refer to “How
to Run Internal Function Tests” on
page 3-9
Did the routines run error free?
Yes No
015
Go to “Action to Take After a
Diagnostic Run or an FRU
Exchange” on page 4-99
016
Reconnect the interface cables on the
3745.
If you are here for an interface control
check, determine if the channel works
properly from the host when you set
the Select out bypass switch to the
bypass position. Refer to Figure 4-28
on page 4-25.
Is the channel working properly?
Yes No
017
You probably have an external
problem. Check the interface
cables and the other control
units, if any.
018
– Exchange CADR and CAL. Go to
“Exchange Precautions” on
page 4-1 and refer to “Basic Board,
Cards, Connectors, and
Crossovers” on page 4-5 for the
failing channel CADR location.
019
– At the 3745 console select Menu 3 and
enter CAS for channel adapter services.
– Enter 4 for concurrent mode commands.
– Enter the channel adapter number corre-
sponding to the suspected CA, in the CA
number ===> field. Enter SHT for shut-
down in the command ===> field.
– Press SEND twice.
– Go to Step 012 on page 2-10.
020
– Refer to the IBM 3745 Communication Con-
troller Service Function (CDF chapter) and
check the CDF for a correct configuration.
Is the CDF OK?
Yes No
021
Correct the CDF and re-initiate the opera-
tion.
022
Go to Step 011 on page 2-10
Chapter 2. Map for FRU Isolation
2-11