Dec 3000 Model 500X Axp System (Front) - Digital Equipment DEC 3000 500X AXP Service Information

Front View,
Table 1–1 DEC 3000 Model 500X AXP System (Front)
This Feature...
, and Removable media device
slots
DC OK light
On/Off switch
Fan failure indicator light
Halt button
Diagnostic display
Microphone input jack
Speaker output jack
Telephone jack
Audio input jack
Continued
Lets You...
Access devices that use removable storage media,
such as diskettes, compact disks, cassette tapes, or
cartridge tapes.
Check that all dc voltages are present on the power
supply.
Turn the system unit on ( | ) and off (0).
Check whether a fan has failed.
Put the system in console mode.
View error codes that indicate potential system
problems.
Connect for a microphone.
Connect a speaker or headphone for audio output.
Connect a telephone handset.
Connect an audio input line.
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