Toshiba PORTEGE R300, Maintenance Manual

Page: 142 / 352

3 Tests and Diagnostics
3-22 [CONFIDENTIAL] PORTEGE R300 aintenance Manual (960-591)
Select the number of the subtest you want to execute and press
Enter
. The following
message will appear during the floppy disk test.
FLOPPY DISK IN PROGRESS XXXXXXX
xxx DIAGNOSTIC TEST VX.XX
[Ctrl]+[Break] : test end
[Ctrl]+[C]
: key stop
SUB-TEST : XX
PASS COUNT : XXXXX ERROR COUNT : XXXXX
WRITE DATA : XX READ DATA : XX
ADDRESS : XXXXXX STATUS : XXX
When the subtest 04 or 05 is selected, the following messages will appear on the screen.
Select the test data
(
subtest 04 only), track number and head number you want to test.
Test data ?? (subtest 04 only)
Track No. ??
Head No.
?
Subtest 01 Sequential read
This subtest performs a Cyclic Redundancy Check (CRC) that continuously
reads all the tracks (track: 0 to 39/0 to 79) on a floppy disk.
Subtest 02 Sequential read/write
This subtest continuously writes data pattern B5ADADh to all the tracks
(track: 0 to 39/0 to 79) on a floppy disk. The data is then read and compared
to the original data.
Subtest 03 Random address/data
This subtest writes random data to random addresses on all tracks (track: 0 to
39/0 to 79) on a floppy disk. The data is then read and compared to the
original data.
Subtest 04 Write specified address
This subtest writes the data specified by an operator to a specified track, head
and address.
Subtest 05 Read specified address
This subtest reads data from a track, head and address specified by an
operator.