Check The Drive Unit - Sony OA-D32W Service Manual

Check the Drive Unit
3-4-3. Check the Drive Unit
The test item from command table must be chosen.
Description Keying
Display
1. To read dynamic inspection disk or pre-record-
00 \
RETURN \ ••• Read Test •••
#Enter pass-count
=
i
ed data disk.
Type the number of pass-count for reading
tracks and sectors pre-set in item 3-4-2.
[EX]
In case it is once.
Insert the disk to be tested.
Read test starts under the test condition pre-set
in item 3-4-2.
The
te~t
ends.
2. To write the data on a level disk.
NOTE: Before writing data pattern on a level disk,
formatting (initialization) can be mode
automaticaly. If the some error occurs during
the processing, the error will be displayed
under title of "Initialize Test End".
To select the data pattern.
[EX]
In case it is worst pattern.
The test ends.
#Test disk ready? yes - ... hit [Return]
<<Pass-count
=
I»
In-ward (trkmin- -+ trkmax)
+Track
=
Out-ward (trkmax--+trkmin)
+Track
=
••• Read Test End •••
[I] Total of Seek error:
o
times during 00160 times seek.
+Seek eRe error: 0 times
+Seek error: 0 times
[2] Total of Read error:
o
times during 02560 times read.
+10, DATA ADM missing: 0 times
+10 eRe error: 0 times
+DATA eRe error: 0 times
+Lost data error: 0 times
+Byte data verify Err: 0 times
[3] Total of Write error:
o
times during 00000 times write.
+10, ADM missing: 0 times
+10 eRe error: 0 times
+Lost data error: 0 times
+Write Protect error: 0 times
+Write Fault error: 0 times
5YI\RETURNI ... Write Test ...
• •• Write data pattern •••
Pattern No. I ... Random data (all data random)
Pattern No.2 ... Random data (1st byte-OAAh)
Pattern No.3 ... Worst pattern (DBh, 6Dh, B6h)
Pattern No.4 ... User definable
#Select pattern number: [I, 2, 3, 4]
=
~
\ RETURN \ #Now, You select pattern No: 3
#Test disk ready? yes - - hit [Return]
\ RETURN
I
-25-
••• Write Test Start •••
+Track
=
End
• •• Write Test End ...