Question about Akai LCT2721AD 27 in. LCD Television
My Aksi LCT2721AD LCD tv does not turn on.The power light is on,NO Picture and NO SOUND.I looked real close in dark and no pic, so it's not the back light.The built in DVD doesnt accept dvds.I opened it up and no leaking caps, or even slightly cracked capacitors /condensers,I looked real close.Nothing visibly wrong with the power board.No warranty and I live hundreds of miles from repair man.Can I use a conductivity setting on a multimeter, to test these capasitors/condensors,or do I have to buy a ESR monitor.They look fine though.I really looked close for damage.Please help. firstname.lastname@example.org you can answer with one of the buttons,don't have to email me.Thank you
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Posted on Jan 02, 2017
We need to verify if the problem is in the preamp or poweramp sections. Hook up the powered PC speakers to the AUDIO Line out RCA jacks and verify that sound is OK there, if it is OK, The problem will be in the power amp sections that drive the speakers. If it sounds bad at the RCA jacks, the problem will be in the sound processor board which mean the main board will have to be replaced, same if the power amp is bad.
Posted on Nov 06, 2009
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I would bet on the power supply....these (and other Akai LCD) are notorious for filter capacitors. Look for electrolytic capacitors with a dome-like bulge on the top of them. They are usually located at the top of the power supply board where the power output lines run out.
Hpe this helps you out....
Sep 23, 2007 | Akai LCT2721AD 27 in. LCD Television
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