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yeba
PostPosted: Sat Mar 25, 2006 20:46 
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Hi, I had a perfectly working nortiake 311 display on my HTPC. I bought an HDTV wonder to install on my HTPC. After installing everything, I forgot to plug the power to the 311 before running lcdinfo. Now the display is just blank.

I read somewhere that you must never send signals to the data input without the power. Can I still fix my 311? I checked my fuse and it is stil intact,, any help is greatly appreciated.

Thanks.
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Zee
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PostPosted: Sat Mar 25, 2006 21:02 
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Happened to me too when I was trying to figure out how to control an unknown VFD. Accidentially disconnected the 5V wire while testing and the controller chip was fried.
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coorz
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PostPosted: Sat Mar 25, 2006 23:08 
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If you power it up can you still see the filaments glow slightly? If not get out your multimeter and check the fuse. If it's blown you can either replace it or short it (at own risk).

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yeba
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PostPosted: Sat Mar 25, 2006 23:15 
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DOes it really glow with just the power? It's hard to tell during the day. I tried grounding pin 2 and it still wont work. I check the continuity of the fuse and is stlill intact.

In my case, if the controller is fried when you forget the 5V power, replacing the controller chip wont be easy. Is there even a way to troubleshoot this thing using the multimeter.

It sounds like replacement is my only option.


coorz wrote:
If you power it up can you still see the filaments glow slightly? If not get out your multimeter and check the fuse. If it's blown you can either replace it or short it (at own risk).
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coorz
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PostPosted: Sun Mar 26, 2006 12:18 
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Well if the controller is fried just buy a new 311, they are relatively cheap (if you're in the USA).

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yeba
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PostPosted: Sun Mar 26, 2006 23:34 
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Do you know where I can get them for cheap? Thanks.

coorz wrote:
Well if the controller is fried just buy a new 311, they are relatively cheap (if you're in the USA).
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coorz
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PostPosted: Mon Mar 27, 2006 9:26 
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You can find them on e-bay.

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wolverex
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PostPosted: Tue Apr 25, 2006 16:13 
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can i ask something strange?
what happens if you connect +12v to the 5v pin
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One~Zero
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PostPosted: Sat Apr 29, 2006 0:46 
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wolverex wrote:
can i ask something strange?
what happens if you connect +12v to the 5v pin

Surely you are kidding..... :roll:
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coorz
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PostPosted: Sat Apr 29, 2006 0:56 
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The fuse should hopefully save the display, get a multimeter and check the fuse, if broken replace it or short it at own risk.

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One~Zero
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PostPosted: Sat Apr 29, 2006 2:17 
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Maybe I misunderstood the question.....I thought Wolverex was just asking if he COULD attach 12v to the display and run it :oops:
Sorry :D
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coorz
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PostPosted: Sat Apr 29, 2006 7:04 
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That'd be a strange question indeed!
It sounds like 'i dunno what happened but the VFD doesn't work, maybe i connected 12v instead of 5v, but i'm not sure'

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