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C.3.2 Using Test Mode
When all parameters are set, press the ST key to enter Test mode. The RUN LED lights
and the selected seek operation is performed. If an error occurs while a seek test is
running, the diagnostic panel displays the status of the drive just as it does in Status mode
(see Section C.2).
C.3.3 Ending Test Mode
Seek operations are halted before completion by a seek error (depending on the status of
the test continuation condition), or by pressing the ST key. When seek operations stop,
the RUN LED goes out. The panel remains in the Test mode. To end Test mode press the
SM or LM key.
C.4 LOG READ MODE
The diagnostic panel stores specific information on each error that occurs during either
Status or Test mode. Information is logged into a dedicated 640-byte memory that
consists of two sections. The first section (memory addresses OOOH through OFF H ) records
the number of times a specific error occurs. The second section (memory addresses 100H
through 27F H provides a sequential log of drive operations. The Log Read mode provides
access to both of these memory areas,
C.4.1 Error/Count Log
Press the LM key to start the Log Read mode. The LOG and the ON CYL LEDs light.
When using the Error/Count Log, the LCD display is formatted as shown in Figure
C-IO.
NOT
, I
,USED,
I I I
~
l
v
J
ADDRESS FIELD
ERROR COUNT
Figure C-IO Error/Count Log Display Format
When the LM key is pressed, the three-digit address field displays memory location 000
and the two-digit data field displays the total number of recorded errors.
Subsequent entries in the Error/Count Log are displayed by pressing the NE key. In
most instances, pressing the NE key results in the following LCD display.
C-15
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