MDM Trouble Report for 2007 Feb 10

Telescope: 2.4m
Observer(s): Prieto (OSU)
Instrument: 8k

Problem(s) Encountered:
The first problem I encountered was after aborting an exposure
using ctrl-c. I wrongly tried to read it out and probably
that caused all the trouble, the readout took minutes and
at the end detcom sent an error of misscommunication with the
boards. I tried turning on/off the instrument, detcom, etc. 
pon wasn't working, and finally rebooted vesuvius and started
all again, then it worked fine (all with the help of Nestor). 
The only problem  left is that from Hiltner I can't see Vesuvius 
to display images and for now I'm doing it from Agung (remotely),
but will have to reboot Hiltner. 

The second problem came up after sending the command  clean 20 ,
I'm guessing because 20 is not allowed (?). In detcome it 
appeared the following message:  NO DON (0x00 dead) after readout
from PCI board 0; pixels may be missing! . After I fixed this 
turning on/off the instrument (because lost communication again), 
in the first image I took chips 0,1,2 showed very high 
counts >~ 15,000 (corrupted images), while 4,5,6,7 showed 
normal levels. After taking biases the high values were 
still there. Then I turned off/on the instrument and 
detcom and it worked fine afterwards, the bias levels were 
normal. 

Finally, this is probably very easy to fix but I didn't figure
out how. The guide stars are very elongated EW and I couldn't
fix the effect with the guider focus (so I'm guessing is
not a focus issue).      

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Submitted on 2007 Feb 10 [6:46:07]