IBM 3745 Service Functions page 53

Diagnostics Monitoring
The diagnostic control monitor (DCM) automatically restricts the diagnostic
testing to the elements defined in the configuration data file (CDF).
Manual Routines
• Offline diagnostics
The MOSS must be initialized with its microcode (IML). The offline diagnos-
tics are selected by the function 'ODG' in the maintenance menu.
• Concurrent diagnostics
Some diagnostic groups (TSS, HPTSS, CAl run while the customer is using
the rest of the machine (concurrent diagnostic mode, function CDG), with
the exception of some routines.
Manual Routines Are:
• Manually invoked routines, that is, routines that do not run during diagnos-
tics unless they are specifically requested. These manually invoked routines
are:
AR04, CCU storage protect key RAM for data retention.
BF03, Cache data array for data retention.
LG02, Initial selection and miscellaneous sense registers.
L103, Host interface sequence I/O error alert.
L104, Request In management.
LJ03, Tag In management.
LK02, ESC address compare.
RC01, TSS wrap test routine
For details on these routines, refer to the 3745 Diagnostic Descriptions
manual.
Note: Before running any Lx section, you must run the LA section.
• Manual intervention routines, that is, routines which in some circumstances,
require manual intervention, such as removing a card or installing a wrap
plug on 3745 components. These manual intervention routines are:
3-4
3745 Service Functions
AT05, Network power OFF (NPO) test.
L001, External wrap test for CA. (BUS and TAG terminators must be
plugged on the 'OUT' connectors.) Refer to "How to Run the Channel
Wrap Test" in the Maintenance Information Procedures.
RC01, TSS wrap test routine for Worldwide. Refer to "How to Run the
3745 Diagnostics" in the Maintenance Information Procedures.
RD01, RD02, RD03, TSS wrap test routines for Japan only. They are
specific to the Nippon Telegraph Telephone (NTT) administration.
RH59, TSS Loop-3 wrap test with line wrap block. Refer to "How to Run
the 3745 Diagnostics" in the Maintenance Information Procedures.
WA01, 10C bus scoping routine.
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