Epson Equity LT User Manual - Page 120
Speed check, and less than 306.0 rpm.
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Use only a formatted blank diskette for this test. Any data present may be erased. If using drive A, remove your Reference Disk. Enter Y to start this check. Enter N to return to the menu. If you are using drive A, remove the reference diskette and insert the blank diskette you prepared in the drive; then press Y and Enter. The program displays the current track number as each cylinder is tested. For example, with a 720KB diskette, this is the first message you see: Current track is 79 Speed check This test checks the revolution speed of the specified disk drive. Select option 4 from the menu to start this test. You see a message similar to this: The disk rotation speed should be more than 294.0 rpm and less than 306.0 rpm. The computer spins the diskette for a few seconds then displays a message like this: The disk rotation speed is now 300.0 rpm. Note The speed for a 3 + -inch or 5 f -inch drive should be 300 rpm. This check permits a tolerance of ~2%. The diskette continues to spin, and the display is updated every few seconds. To stop the test, press any key; the program returns to the menu. If you try to perform a speed test without inserting a diskette, or if a read error occurs, you see this message and prompt: Disk is defective or not installed properly. Press Enter to return to the menu. D-16 Performing System Diagnostics