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Diagnostic Test 88 (Door Sensors Check)
This is an interactive test.
The front panel displays DOOR when the door or the top cover is open. The
Unload/Open button permits the door to be opened during this test.
Diagnostic Test 89 (Reel Encoders and Write-Enable Ring Sensor Check)
This is an interactive test. It needs a scratch tape and the tape must be unloaded.
Load a write-enabled scratch tape and rotate it manually. The front panel displays
each time a reel encoder pulse is detected. The file protected light on the front
panel lights when the write-enable encoder is detected.
Diagnostic Test 90 (Tape Lifter Operation Check)
This is an interactive test.
The tape lifter is engaged. After one-half second it is retracted.
Diagnostic Test 91 (Hub Lock Check)
This is an interactive test and a tape must be loaded for this test.
This test engages the supply hub clamps.
Diagnostic Test 92 (Hub Unlock Check)
This is an interactive test.
This test retracts the supply hub clamps.
Diagnostic Test 93 (Blower Check)
This is an interactive test.
The blower is turned on for thirty seconds.
Listen and feel for air coming from the rear of the tape unit during this thirty
seconds. This will verify that the blower is working.
Note: This test will always show 'PASS' at the end of thirty seconds indicating that
Test 93 has ended.
Diagnostic Test 94 (EOTIBOT Sensor Check)
This is an interactive test.
The sensor detects reflective BOT and EOT markers. The front panel displays
"BOT" when a BOT marker is detected and "EOT" when an EOT marker is detected.
The tape must be moving for the sensor to function. Thread the tape through the
tape path
--
but do not tension it
--
and manually turn the reels to move the BOT/EOT
marker past the sensors.
Diagnostic Test 95 (Servo Performance Test)
A scratch tape is needed for this test.
Appendix B. Diagnostic Tests
B-13
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