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Hitachi 50EX16B Intermittent

 
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rbearl
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PostPosted: Sat May 16, 2009 1:02 am    Post subject: Hitachi 50EX16B Intermittent Reply with quote

My Hitachi 50EX16B will sometimes work for about an hour before the
problem starts. The picture suddenly becomes washed out with red, green and blue lines running diagonally (about 25° or so) through it.

Sometimes it will remain powered on but normally, after a few minutes the power shuts down.

Not sure what the problem is and would appreciate any kind of help I can get.

I'm an experienced tech but have never worked on a projection TV
before so I'm a little timid.
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torbjorn



Joined: 07 Jun 2007
Posts: 370
Location: Sweden

PostPosted: Mon May 18, 2009 7:49 am    Post subject: Reply with quote

In first instance, check the supply voltage to the video output stages.
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Mon May 18, 2009 8:22 pm    Post subject: Reply with quote

Sounds like convergence ic's.
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