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hitachi 1200 problem

Discuss hitachi 1200 problem in the Home Theater | Audio and Video forum; hitachi 1200 problem We have a Hitachi 1200 projector. It's run maybe 60 hrs. Was doing fine until a couple weeks back. We ...

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Old 04-13-08, 11:59 PM   #1 (Link)
 
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hitachi 1200 problem


We have a Hitachi 1200 projector. It's run maybe 60 hrs. Was doing fine until a couple weeks back.

We have the unit hanging from an overhead mount, in free space.

All of a sudden, the temp control is shutting us down because of hot bulb. The bulb isn't really the problem.

Do bulb indicators fail? My feeling is it's a bad indicator that thinks it's too hot.

What should I check?


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Old 04-14-08, 01:52 AM   #2 (Link)
 
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Re: hitachi 1200 problem


Welcome to the shack Rb!

Before thinking about defects, clean the filter that may be clogged..then see.


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Old 04-14-08, 07:36 AM   #3 (Link)
 
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Re: hitachi 1200 problem


WIll do. I'll get back if it still isn't fixed.


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Old 04-14-08, 01:34 PM   #4 (Link)
 
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Re: hitachi 1200 problem


Cleaned the filters. We've still got the problem. It thinks it's getting hot and shutting us down.


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Old 04-14-08, 03:44 PM   #5 (Link)
 
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Re: hitachi 1200 problem


If the fans are operating and the airflow is not restricted, you could have a bad thermal sensor. Very common failure point on projectors.


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