Epson NX, Service Manual

Page: 133 / 154

Utilities
To enter a new value, select You see the following prompt:
Enter new skewed sectors per head in format (O-16):
Enter the recommended number, which equals the maximum sector number for the
drive minus 1. The maximum sector number varies, depending on the drive type.
Then
4 The program now allows you to edit the defective track table. At the bottom of the
table is this prompt:
Modify
defective track table ? (Y/N)
Select
N
if you want to leave the table as it is. Then skip the next section and go to
“Formatting the Disk” on page B-28.
To add bad tracks to the defective track table, see the next section.
Modifying the Defective Track Table
If you select Y to modify the table, you see the following options at the bottom of the table:
Defective Track Table :
box to desired track with
cursor key
I
Add track,
C
I
Change track, D = Delete track,
F = Finish editing
Enter command:
To add a bad track, follow these steps:
1 Press You see this prompt:
Enter cylinder number (1 -nnnn):
2
Type the number of the cylinder containing the bad track and press
this prompt:
Enter head
number
(0 - nn):
3
Type the head number for the bad track and press (To cancel the operation,
press without typing a value.)
When you complete a valid entry, it appears in the table and you can add the next bad track,
if necessary.
If you make a mistake, move the cursor block to the incorrect track and press
C
to change
the track data or
D
to delete the track from the table. Change the track data in the same way
as you add a track
The maximum valid cylinder number and head number
(nnnn
and
nn)
according to the
capacity of the hard disk If you enter an invalid cylinder or head number, a reminder of the
range of values appears and the program asks you to enter the value again.
When you finish adding bad without typing a value. Then check
the entries in the defective track table. When you are sure the table is correct, press
program displays a warning about the consequences of proceeding with formatting, as
described in the next section.
NX Service
B-27