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Author Topic: Can someone help me fix this LCD?  (Read 1307 times)

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tykenfitz

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Can someone help me fix this LCD?
« on: September 07, 2010, 06:33:16 am »
Ok, so I got this LCD tv I've got to fix, its an AKAI LCT2701TD with a F'd power supply board.  I replace the blown capacitors and now all that happens is the red light blinks a little bit after I switch it off.  Here's what somebody suggested on FixYa.com:

Quote
Most failures on this LCD are due to defective capacitors in the power supply board.
The defective capacitors are 1000uF/16v, the reference designators are EC18, EC19 & EC20 and since the light is flashing. Z3 a 27v 1w zener diode might be shorted and two 10 ohms surface mount resistors might also be defective.
If you are fixing it yourself, you can use 1000uF/25v or 35v as long they fit in the space provided by design. Radio shack should carry the capacitors and possibly the zener diode but not the 10 ohms surface mount resistors.
Let me know if you need further assistance.

I've replaced caps EC18, EC19, and EC20.  Can somebody give me a digikey number for a diode and resistors that would work?  Do the resistors need to be a certain wattage?  I can post pics or whatever about the power board if you guys need it.
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Re: Can someone help me fix this LCD?
« Reply #1 on: September 07, 2010, 07:23:53 am »
double check the diodes .
there is a fr305 ( i think) that tends to short , rendering the supply inoperative.
i don't recall the location number , but it is a common fault...