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Find Replacement BBQ Parts for 20,308 Models. Repair your BBQ today.
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Two levels of unit-resident diagnostic tests can be accessed:
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To invoke this level of diagnostic test, a major portion of the controller
hardware and software must be functioning properly. The test is based on the
premise that full power-up testing is not necessary, therefore, it is an
extension of the power-up self tests that are run. The code ROM EDC is
verified, two queues used by much of the controller software are checked by
dequeuing and enqueuing items.
If a loader (Medium Changer) is configured, the test attempts a software
reset on the loader. This test does not attempt a WRITE or READ to or from
the tape medium. When complete, any errors that occur are reported in the
extended Sense Data bytes. This Level 1 test has an execution time of
approximately five (5) seconds.
Specify the Electronics Self-Test by setting the Selftst bit to 1, and both the
DevOfl and UnitOfl bits to 0.
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The default version of this test does the following:
1. Writes 500 32 KB records on track 0 (forward motion)
2. Rewinds the tape.
3. Reads the records.
4. Positions to the beginning of track 1 (backward motion)
5. Writes 500 32 KB records on track 1.
6. Repositions to the beginning of track 1.
7. Reads the records.
8. Rewinds the tape.
The execution time for this Level 2 test is approximately 6 minutes, if
calibration is not required. Specify the Read/Write test by setting both the
Selftst bit and the UnitOfl bit to 1 and ensuring that the DevOfl bit to 0.
A Level 3 (or test type III) is available with user defined parameters. In addition,
SEND DIAGNOSTIC can be used to invoke the BHC test (Figure 5-98 and Table
5-97). Note that the BHC feature is provided for use only by a trained service
provider.