Commodore 1571 - Page 13

1571/C128D SYSTEM TEST
VERSION 1.2.1
* Insert a Blank Test Diskette
* Press (F) - Test Disk is Formatted
* Press (U) - Test Disk is UnFormatted
If the (0)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 1541 Slow Mode is checked by ....
* Writing Data to Tracks 5, 15, 25, 35
* Reading and Verifying Data from Tracks 35, 25, 15, 5
* The GCR Fast Mode is checked by ....
* Writing Data to Tracks 40, 50, 60, 70
* Reading and Verifying Data from Tracks 70, 60, 50, 40
FAILURE - TEST DISKETTE DEFECTIVE OR NOT DOUBLE SIDED/DOUBLE DENSITY
MIS-ADJUSTED ZERO STOP SENSOR OR DRIVE ALIGNMENT
DEFECTIVE DRIVE ASSEMBLY
DEFECTIVE READ/WRITE CONTROL LOGIC
* The MFM Burst Format Operation is checked by Formatting ....
SYSTEM TEST OPTION FIVE - READ/WRITE TESTS
TRACK
BYTES/SECTOR
01
128
02
512
36
1024
37 256
38
512
39
128
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