Question about Samsung Televison & Video
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Posted on Jan 02, 2017
SOURCE: HDTV Rear Projection
The color wheel is the most common problem when it comes to noise from DLP's. To determine if it is a color wheel or fan: Turn on the set. When the noise starts, turn off the set. If the noise goes away within 5 seconds, then the color wheel is bad. If the noise goes away after one to one and a half minutes after the set was shut off, then one of the fans are making the noise.
Posted on Apr 01, 2007
I don't recommend working on the TV unless you have some experience and knowledge relating to the safety issues and electronic repair. Most rookies will not successfully complete the repair and probably do more harm than good.
Sometimes when the convergence chips fail, the TV senses the changed load condition and shuts down.
Unplugging the blue, red or green convergence connector on the convergence board removes the overload condition if the IC is shorted and allows the tv to run, with one color missing.
This is done with the tv unplugged. Then plugged in and turned on to see if it starts. Turn off immediately if you here it start.
Now you know if convergence failure caused the shutdown. You can repair the convergence circuit if that is the problem.
If this has no affect, then you could have a number of different faults in Vertical output, Power Supply or HV circuits that require the expertise of a qualified service person. This would be a bench repair in most shops.
If you live around Calgary, Alberta try me instead:
Or try to the find the repairperson part of this website (on the Homepage) and search postal code. Maybe you will be lucky and someone from your area is listed for Projection TV repair.
Most rookies doing this job will cause damage and not be successful. They will pay double for someone to fix their mess or end up scrapping the TV. It is not a simple task. It is more difficult than batteries on a remote.
Posted on Jun 27, 2008
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