Question about Projection Televisions

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I paid 9.95 for assistance and did not get a responce but charged

My CRT sim2 multimedia projector has a very bright green projection with horizontal lines and no TV output. It will display for a couple minutes and then shut off.

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From your description it sounds like G2 voltage on the green picture tube is too high.
Are you confident about adjusting it yourself? There are high voltages in places which can kill. I will not take any responsibility of you getting an electric shock so I suggest calling in a qualified TV technician.

Any TV technician should be able adjust this voltage and it should not take long to do it unless the cases are hard to remove and hard to access the flyback transformer where the G2 (screen) adjustment is located.

Otherwise it may be a faulty green picture tube and this is expensive as you need to get the tube replaced.

Hope this helps

Posted on Dec 01, 2008

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9p5534c102


could be a number of things..
fungi in the coolant (depending on type of projector)
alot of burn in on the blue (they wear out the quickest)
or possibly a bad flyback...


to check for fungi get a bright flashlight and hold it up to the lense look into it and you will see.

fixed one today that was so bad that you could not even see the crt anymore just a dull blue light.. took it apart and the fungi came out in clumps.

this site will help with do it yourself fixes

http://www.curtpalme.com/Advanced_Procedures.shtm

cheers
dave

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