Running Online Tests - IBM 3279 2A Maintenance Information

3279 MIM
2.6.1 Running Online Tests
I. If the 'READY' symbol is not displayed in the
OIA, set the Normal/Test switch to Test and
back to Normal.
2. Hold down the ALT key, press the TEST key,
and release both keys. TEST appears in the
OIA.
3. Key in pp/ n and press ENTER. (pp is the port
number, 0-31, of the device to be tested or
reported upon, and n is the number of tile test.)
Notes:
~
a. If
pfJ
is omitted the test is run on the
requesting terminal.
b. The / must always be keyed in.
c. If n is omitted, test 0 is run.
4. To end the online tests:
Hold down the ALT key, press the TEST
key, and release both keys. TEST
disappears from the OIA.
5. Error Indicators. (Press RESET to continue.)
a.
)C
-f (Do not enter, Function not available)
... you tried to select an in-session terminal
for
Test O.
b.
)C *.#?
(Do not enter, Op check, What
number) ...
yOll
used an invalid test number,
or address, or wrong test format. (Begin
test format at position 0 and use only one
slash / and no spaces).
Note:
)C
c-f will appear instead if connected to
an IDPA.
2.6.2 Test 0
2.6.2.1 Routines Only for Terminals Connected to
IBM 3276 Controller
The IBM 3276 control unit precedes the main test
with two transmission test routines.
Note: Before going to a specific MAP reference,
read the danger notice at the start of MAP 0000.
Test 0 - Routine 1 (3276 only)
This routine 'verifies the basic TA (Terminal
Adapter) card functions - register, SERDES,
command decode, and so on. Driver/Receiver
Chapter 2. Maintenance Aids 2-6
operations are not tested.
If an
eITor occurs,
the test stops. See IBM 3276 Control Unit
Display Station Maintenance Information
Manual, SYlS-2oo4.
Test 0 - Routine 2 (3276 only)
This routine is the Link test. It verifies the
communications link by issuing reset and
receiving a
POR
response. If an error occurs,
the test stops. Read MAP 0000 page 2 and go
to MAP 0100, Entry Point CC.
2.6.2.2 Four-color Pattern Test
This test is used to verify the following:
The correct control of a field by the field
attribute byte.
The 3279 alarm.
The interaction of the 3279 with the control unit
or IDPA.
The action of the
0000/00
switch.
To run test 0, see section 2.6.1.
J. Ensure the
0000/00
switch is set to
0000 •
2. The alarm sounds when one of the patterns in
Figare 2-4 appears.
3. Verify that the red and blue fields become
white and green when the
0000/00
switch is
changed to
00.
If this test fails read MAP 0000 page 2, and go
to Map 0500 entry point A.
4. Reset the
0000/00
switch to
0000.
5. The pattern appears on the device connected to
port number pp.