Question about Akai LCT2701TD Television
This is in reference to the thread about the AKAI power supply:
First of all, thank you for the tips and hints! Second, I was wondering what you thought about replacing the bad capacitors with 35v 1000microF capacitors? Is that increasing the voltage too much overboard from the 16v originals?
Also, do you have any hints on getting the z3 zener diode out? It looks like it's under what looks like a heatsink - do I need to desolder the whole heatsink first?
Finally, is there anything else you can think of that can be causing the TV to fail to turn on. Mine just has the red light blinking, and I'm hoping that it will work after I replace the capacitors and diode, but in case it doesn't, I was wondering if you have any other words of wisdom. :-D
You can always replace a lower voltage cap with a higher voltage just don't change the rating... In fact you could replace the 16v cap with a 400v cap if it would physically fit.
As far as replacing a zener under the heat sink, yes you'll probably have to remove the heat sink itself if it's blocking. And as for any words of wisdom - if your repair is unsuccessful try replacing the module. Shop Jimmy usually has them used if you don't want to spend full bore and order a new one.
Posted on Jan 07, 2009
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Posted on Jan 02, 2017
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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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