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Troubleshooting
Potential Problems During Boot Process
6. Referring to
Figure 2-5
A7 Midplane Board +12D VDC LED/Test Point 503
7. With the instrument turned off remove the screws that attach the front panel
8. Without disconnecting any of the cables carefully lay the front panel assembly
9. Referring to
The instrument does have a screen saver which can disable the display backlight
NOTE
after a predefined period of time. If there is any question as to whether or not this
has been set by the user prior to the current failure, and the "Inverter Enable"
voltage measures too low, press a front panel key and see if the voltage level
increases to the expected level.
48
Figure
2-5, verify that the red +12D VDC LED is off.
Is the red +12D VDC backlight supply voltage fault LED off?
If yes:
Proceed to
step
7.
If not:
Replace the A6 Power Supply assembly.
assembly to the instrument chassis.
face down on the work surface.
Figure
2-6, verify the 3 voltage levels listed in
correct.
Table 2-1
are
Chapter 2
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Table of Contents
Troubleshooting
