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Main => Everything Else => Topic started by: Guaranos on March 08, 2008, 05:55:23 pm

Title: Broken projection TV - any uses?
Post by: Guaranos on March 08, 2008, 05:55:23 pm

I have a widescreen projection TV that has one of the three color guns dying.  Basically, the red flickers on and off (mostly off).

Is there anything I can use any of the parts for?  Any fun DIY projects or anything?  The screen/lens itself is still in good shape - everything works except the red, actually.  There must be something fun that can be done with a screen like that.

Title: Re: Broken projection TV - any uses?
Post by: Guaranos on March 09, 2008, 08:45:21 am

No ideas?  Well, I guess I'll go with my other idea - haul it to the dump.

Title: Re: Broken projection TV - any uses?
Post by: shardian on March 09, 2008, 10:27:44 am

You can have fun burning stuff with the fresnel lens.

Title: Re: Broken projection TV - any uses?
Post by: WaRpEd on March 09, 2008, 12:34:37 pm

Dose with gasoline and apply lit match enjoy.
From a distance.

Title: Re: Broken projection TV - any uses?
Post by: shmokes on March 09, 2008, 01:20:50 pm

I'm in substantially the same boat.   :'(

Title: Re: Broken projection TV - any uses?
Post by: SirPeale on March 09, 2008, 05:03:02 pm

Why don't you just replace the dying gun?

Title: Re: Broken projection TV - any uses?
Post by: ChadTower on March 09, 2008, 05:28:35 pm

If it's not an HDTV it's not worth nearly enough to do that.  Even if it is, the used projection TV market is very low now.  Everyone wants flat panels.

Title: Re: Broken projection TV - any uses?
Post by: grantspain on March 09, 2008, 06:06:52 pm

depends on the make but rptv tubes are like rocking horse poo,so don't go skipping it yet,mitsubishi and panansonic in particular

Title: Re: Broken projection TV - any uses?
Post by: ark_ader on March 09, 2008, 08:59:59 pm

How much doe the bulbs on a RPTV like a Mitsubishi go for these days?

Title: Re: Broken projection TV - any uses?
Post by: shardian on March 10, 2008, 12:15:11 am

Oh the TV is definitely repairable. Unfortunately, it will cost a minimum of $200.

Title: Re: Broken projection TV - any uses?
Post by: ChadTower on March 10, 2008, 09:02:36 am

BTW, flickering doesn't sound like failure of the gun.  It's failure of the driver.  Much easier to fix.  Failure of the gun is fading of the color that you can only fix by turning it way up.

Title: Re: Broken projection TV - any uses?
Post by: Guaranos on March 10, 2008, 10:33:04 pm

It wasn't the driver, unfortunately.  It was the gun itself, and would have been $300 or so to fix.  Instead I picked up an LCD TV, same size, for $750 shipped.  As a bonus, the LCD has a digital tuner, so I get lots of digital and HD channels now that I didn't before.

I had already repaired this TV a couple of times before, including replacing the convergence board, so it wasn't worth keeping around.