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Tektronix 2230 Power Up Failure
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Jim Yanik
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Tektronix 2230 Power Up Failure
dodger741 wrote in news:3e37a02c-14eb-465a-9e1f-
:
If the scope has been off for a while and I power on I get an error
message screen:
Power up Failures
CMOS: Reformatted
If I cycle the power on and off again the message does not appear. I
have run all the diagnostics and they all pass. Everything on the
scope appears to work properly. I can't find any reference to the
message in the service manual. Because of the time it has to be off
(15-20 minutes) I am suspecting a low battery that is used to save
some memory data. I can't fine any reference to a battery for the
basic unit. I did see a battery on the GPIB interface parts list but
couldn't find it on the board or other documentation. Any one know
what this message means??
IIRC,2230 had a lithium coin cell holder on the top digital board,or a 123
lithium cell underneath the top digital board.(soldered to it)
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Jim Yanik
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