Epson PC AX Technical Manual page 238

DIAGRAMS AND REFERENCE MATERIALS
6. Floppy Disk Drives and Controller Check
This module checks the floppy disks and floppy disk drives.
First, select which check to perform from the menu.
KEV.A
FLOPPY DISK DRIVE(S) AND CONTROLLER CHECK MENU
1 - Sequential seek check
2 - Random seek check
3 - Write, read check
4 -
Speed check
5 - Disk change check
6 -
Run all above checks
Enter selection number:
+-----------------------------------------------------------------+
I
I
I
I
I
I
I
I
I
I
o -
Exit
I
I
I
+-----------------------------------------------------------------+
(In case of test multiple times, the following checks are
consecuti vely performed.)
+-----------------------------------------------------------------+
I I
I I
: 1 - Sequencial seek check :
: 2 - Random seek check :
: 3 - Write, read check :
I I
I I
+-----------------------------------------------------------------+
The remainder of this section describes each of the checking
procedures.
1) Sequential Seek Check
Initially, the number of floppy disk drives installedis
checked by using Equipment Determination (int 11h). The program
displays following message if two drives are installed, so input
the name of the drive to be checked:
+-----------------------------------------------------------------+
I I
I I
: Check which drive
(AlB)? :
I I
I I
+-----------------------------------------------------------------+
The sequential seek check sequentially searches from the
cylinder position of the innermost periphery to that of the outermost
periphery for the head, then checks the seek operation. This check
is performed with respect to Head "0" and "1".
7-64