Commodore 1581 - Page 8

1581 SYSTEM TEST
VERSION 1.5.1
SYSTEM TEST OPTION FIVE = READ/WRITE TESTS
* Insert a Blank Test Diskette
* Write-Protect Tab Must be CLOSED
* Press (F) -— Test Disk is Formatted
* Press (U) - Test Disk is UnFormatted
If the (U)nformatted Option is selected .... (Recommended)
* The Format Operation of the drive is checked by executing a GCR Format
to all Tracks, (Upper and Lower), with an ID written to all sectors.
* The GCR Read/Write Operations are tested by ....
* Opening a Write File = Writing Data to the File - Closing the File
* Opening a Read File = Reading and Verifying Data = Closing the File
* Scratching the File
FAILURE - DEFECTIVE TEST DISKETTE
MIS-ADJUSTED ZERO STOP OR DRIVE ALIGNMENT
DEFECTIVE DRIVE ASSEMBLY
DEFECTIVE READ/WRITE CONTROL LOGIC
* The GCR Slow Mode is checked by ....
* Writing Data to Tracks 5, 15, 75, 79
* Reading and Verifying Data from Tracks 79, 75, 15, 5
* The GCR Fast Mode is checked by ....
* Writing Data to Tracks 5, 10, 76, 79
* Reading and Verifying Data from Tracks 79, 76, 10, 5
FAILURE - TEST DISKETTE DEFECTIVE OR NOT DOUBLE-SIDED/DOUBLE DENSITY
MIS-ADJUSTED ZERO STOP SENSOR OR ALIGNMENT
DEFECTIVE DRIVE ASSEMBLY
DEFECTIVE READ/WRITE CONTROL LOGIC
* The MFM Burst Format Operation is checked by Formatting ....
TRACK BYTES/SECTOR
01 256
02 512
40 1024
41 256
76 512
79 1024
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