Question about RCA Televison & Video
As stated tv is less then week old but made a screeching sound and turned off. had to wait and unplugged set before re starting. what causes this and why does it get hot. the label say nov,2013 so why am i having this prob? willing to fix myself no doubt but need to know what to do. thanks
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Posted on Jan 02, 2017
SOURCE: Speakers have died?
Probaby the stereo decoder IC went bad or a supply voltage to it is too low or noisy. If it has audio output jacks on the back of the TV, connect it to an external amplifier and see what that sounds like. If it is ok in stereo or mono mode then the amplifier in the TV is bad. This will prove that the stereo decoder is ok.
Posted on Feb 01, 2007
SOURCE: Samsung DLP loud vibrating noise
The color wheel is the most common problem in DLPs that cause noise. To determine the cause: Turn the set off. If the noise goes away after about five seconds, then, the problem is the color wheel. If the noise goes away one to two minutes after shut off, then, the problem is a fan. You can find an Authorized Servicer in your area that can tell you the price of repair, by clicking on the Samsung link: http://www.samsung.com/Support/ServiceLocations/index.htm
Posted on Apr 22, 2007
SOURCE: Loud pop - no picture
Your X and Y circuit boards are bad. It might require the replacement of the power supply as well. This is not uncommon for LG/Zenith plasmas to have this issue. Not a do it yourself repair.
Posted on Nov 25, 2007
SOURCE: No picture and No sound
I have the same problem here with my Philips 30PF9946/37
I'm not sure this can be diagnosed as an inverter failure, unless there is a another inverter board in there I'm not aware of. The only inverter I found (actually two) in this unit is the pair of KLS300A1 inverters which drive the CCFL tubes.
Since I personally get a green power and light AND the CCFL backlight comes on, it seems unlikely that the inverters have failed.
Would love to hear from anyone who can ident the failure in these units - there's certainly a LOT of these around that have failed in exactly the same way.
Posted on Mar 16, 2008
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