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To test the flexible disk drive voltages
Refer to chapter 6, "Replacing Assemblies," for instructions to remove or replace covers and
assemblies.
WARNING
Hazard voltages exist on the power supply, the CRT, and the CRT driver board. This
procedure is to be performed by service-trained personnel aware of the hazards involved,
such as fire and electrical shock.
Equipment Required
Equipment Critical Specification Recommended
Model/Part
Digitizing Oscilloscope > 100 MHz Bandwidth HP 54600A
1 Turn off the instrument, then remove the power cable. Remove the instrument
cover and the flexible disk drive.
2 Reconnect the disk drive cable to the rear of the disk drive. Turn the disk drive over
so that the solder connections of the cable socket are accessible.
3 Connect the power cable, then turn on the instrument.
4 In the Mainframe Test menu, select the Flexible Disk Test. Insert a disk that has
enough available bytes to run the test in the disk drive, then select Run-Repetitive.
Refer to "To run the self-tests" in this chapter if you need help accessing the test menu.
Troubleshooting
To test the flexible disk drive voltages
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