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HP4402.book : chapter3.fm 23 Wed Apr 23 15:29:05 1997
Menu Reference
Front Panel Menu Reference "System/Inputs" Menu
HP EPM-442A User’s Guide 3-23
❖
Press this softkey to perform a ROM checksum verification
test.
❖
Press this softkey to verify the memory and the correct
amount of RAM is present.
❖
Press this softkey to verify that the firmware checksum is
still resident in a battery-backed memory location.
❖
Press this softkey to run a self test on the measurement
assemblies. Refer to “Measurement Assemblies”, on
page 2-54 for further information.
❖
Press this softkey to make internal voltage measurements
on the 50 MHz reference oscillator.
❖
Press this softkey to verify that the keys are functioning
correctly. Once you enter this test you are prompted to
press all the keys and verify the correct descriptions are
displayed on the screen.
❖
Press this softkey to access a menu of various front panel
display patterns.
❏
Press this softkey to make internal measurements on the
display.
❏
Press this softkey to perform a display RAM read/write
test.
❏
Press this softkey to display test patterns. Instructions
appear on the screen detailing the use of to cycle
through the various bitmaps and to end the
displays.
■
Press this softkey to access a menu which allows you to set the
defaults for contrast and brightness.
ROM Checksum
RAM
Battery
Measure Assemblies
Calibrator
Keyboard
Display
Display Assy
Display RAM
Bitmap Displays
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Display