Question about Akai LCT2715 27 in. LCD Television

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Akai LCT2715 No Power

Hi, When I turn my Akai LCT2715 TV on power indicator blinks red briefly and then turns off. No sign of life. I replaced all power board caps...still no dice. Any ideas ....switch transformer, transistors, etc? I poked around w/ a multimeter - everything downstream (I have no diagram) of transformers has no conductivity to main power in. How do I test for a bad transformer? Thanks in advance. Peter

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  • mainah Feb 05, 2009

    The power light blinks orange briefly once when I hit power switch, then nothing. Any ideas? Could the 27v/1W diode and 10 ohm resistors be bad? I'll need to test these out of circuit, right? Thanks

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I have a different thread going, but saw yours and had a question. Is your light blinking steady and then off? or is it a blinking erraticly or even flickering? My bad caps (15 of them) were all on the secondary side of the PSU. I have been told (thanks to Jaimie Hernandez) if you have a steady blinking, then it is very likely that you have a bad zener diode Z3(27v/1Watt) shorted in the primary side of the power board. If that diode is shorted, it's very likely that 2 10 ohms resistors might be open, these resistors are connected to the cathode of Z3. Also check for bad caps on the Primary side.

I had a huge incentive to fix the TV, it is my wife's TV and she has been in my Man Cave since it died. How about that incentive.

Good luck

Gallagher68

Posted on Oct 23, 2008

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These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power led, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating, to many popular brand TVs and other devices. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given.

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