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Barco 909 FAN issue for horizontal deflection - Not running

 
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DaBuze



Joined: 18 Dec 2017
Posts: 4
Posted: Tue May 01, 2018 9:33 am    Post subject: Barco 909 FAN issue for horizontal deflection - Not running
Hi together,

as you may notice - i am new to this forum and also more or less new to CRT projectors. So HELLO to the experts Wink

I was "infected" by a friend of me who own a perfect home cinema setup. Due to a "accident" i got the change to buy a Barco 909 Reality SplitPack..... Smile

The baby is definitely not setup perfectly yet but i noticed that one of the fans (fan hor defl) is not running - even after ~1 hour on-time. The passive cooler inside the case was already VERY HOT :/
I measured the voltage - only ~2Volts while the other fan runs with 7-12 volts..I dont know exactly since when the fan is not running.

Now my question to the experts - do you have any idea what could be wrong or what i could check next to find the issue? My fall-back would be to create a Y cable to supply both fans from the same working source...




Thx in advanced and i think i will come up with a lot more questions soon.... Wink
Christian

Barco909_fan.jpg
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"TO FAN HOR DEFL" is the one, i am talking about
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ElTopo



Joined: 07 Nov 2006
Posts: 1640
Posted: Tue May 01, 2018 10:16 am    Post subject:
The fan only turns on if the horizontal gets to hot.

Please connect the fan Smile
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Barco Cine 9 the one and only
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jask



Joined: 17 Mar 2006
Posts: 10187
Location: kamloops BC

Posted: Tue May 01, 2018 3:03 pm    Post subject:
I believe that those fans run continuously if the thermistor fails, do you have schematics or service manuals?
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DaBuze



Joined: 18 Dec 2017
Posts: 4
Posted: Tue May 01, 2018 5:38 pm    Post subject:
Thx for the fast answers.
Yes, i have connected the fan already even if it is not running. I had the projector running for ~2 hours....looks that the temperature was not high enough to trigger the fan!?

@Jask: i have only the documentation from the manuals page on curtpalme and no other schematics or service manuals. Do you know where i can get some more information? Wink

Thx
Christian
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jask



Joined: 17 Mar 2006
Posts: 10187
Location: kamloops BC

Posted: Tue May 01, 2018 6:41 pm    Post subject:
Yes I do, there a a really good service tech in Langley B.C. : curt@curtpalme.com
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redfox001



Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands

Posted: Tue May 08, 2018 9:09 am    Post subject:
Like ELTopo says. Fan only runs when hot. The 909 is very protective if the fan does not work when it should you get a fan fail shutdown.
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701s->runco933->8500ultra->cinemax->9500mp->919 splitpack + cinemax
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ElTopo



Joined: 07 Nov 2006
Posts: 1640
Posted: Tue May 08, 2018 4:26 pm    Post subject:
Even if a one Fan does not work properly (but Fan control board is good) the 909 gives you the message fan failed and will shut down.
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Barco Cine 9 the one and only
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