MDM Trouble Report for 2015 Nov 28

Telescope: 1.3m
Observer(s): Hodges-Kluck, Park, Shinn, Jeon (Michigan/SNU)
Instrument: Templeton CCD

Problem(s) Encountered:
At about 21:00 the telescope became unable to move in Dec. We
tried restarting the TCS (telescope stop/start, restart/initialize
the GUI) a few times, with no success. We verified that it would
move in HA, and then moved it to HA=0.

We found a trouble report from Oct. 23 where a similar problem was
encountered and solved by changing electrical connections in the
TCS box. We did not mess around with the electronics, but we
cycled the power to the TCS box in the computer room. Upon 
restarting the system, everything worked normally but the Dec
drive could not be homed or talked to at all. 

We did home the focus and dome, so the focus is now at a value
of 0.

We then called Eric at 21:50 and he suggested power-cycling the
Dec drive in the telescope mount. Previously we had looked at
the status of the OSMON display and found it was normal, but
we cycled the power and nothing changed. Eric suggested a visual
inspection of the drive belt, which appeared fine to our 
untrained eyes.

Finally, we shut down/put the e-stop on and killed the TCS
GUI and did 'telescope stop'. The telescope is close to zenith
by coincidence (prior target had Dec ~ +30). 

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Submitted on 2015 Nov 28 [22:36:58]