Error Messages - HP 8753D Option 011 Service Manual

Error Messages

Three error messages are associated with the power supplies functional group. They are
shown here.
OWER SU LY SHUT DOWN!
One or more supplies on the 8 post regulator assembly is shut down due to one of the
following conditions: overcurrent, overvoltage, or undervoltage. Refer to \If the Red LED
on 15 is ON" earlier in this procedure.
OWER SU LY HOT
The temperature sensors on the 8 post regulator assembly detect an overtemperature
condition. The regulated power supplies on 8 have been shut down.
Check the temperature of the operating environment; it should not be greater than +55

(131 F). The fan should be operating and there should be at least 15 cm (6 in) spacing
behind and all around the analyzer to allow for proper ventilation.
ROBE OWER SHUT DOWN!
The front panel RF probe biasing supplies are shut down due to excessive current draw.
These supplies are +15VPP and 12.6VPP, both supplied by the 8 post regulator.
+15VPP is derived from the +15 V supply. 12.6VPP is derived from the 12.6 V supply.
5-16 Power Supply Troubleshooting
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