Question about Akai LCT3701AD 37 in. LCD Television

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No power except blinking yellow LCD - Akai LCT3701AD 37 in. LCD Television

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The blinking light is the led I assume u meant..?!..if so then here is the problem The caps (capacitors) in the powerboard are going out. This is a very common problem in all class and price ranges of modern lcd and plasma tv's/ monitor's. I don't know if this problem has been like this for awhile or it just started, but either way, if the tv takes an abnormal amount of time to "warm" up then it most likely will go out all the way sometime in the (near) future. If you have a tiny bit of will and knowledge ypou can open the unit and get to the print board. Examine this for "popped" capacitors, they will have a buldging top instead of a flat one. Im gonna try to include a pic of them here, if i can get it this time, I've tried bfore lol. But you can google image a "popped" or "bad" capacitor and you would be able, with ease, to diagnose if you have any of these. Usually only one or two. Radioshack sells capacitors (couple anyway) for $1.59 each. MAKE SURE the replacement is of the SAME voltage or HIGHER, or you will be right back replacing those 2. Every capacitor has a negative pole marked with an (-) on the side of the capacitor(by one of the "legs", always puit the negative (-) "leg" of the new capacitor in the same hole in the printboard as where the previous negative (-) "leg" of the capacitor was ( a capacitor with the negative and positive "legs" put in backwards will result in the new piece "popping" as sson as you turn it on!!) make sure the "uf" rating (for example the most common popped capacitor is the 1000 uf) is the same as the one you are replacing. I needed 1000 uf, 105 c and 26v (volt) ratings for the 1 capacitor I needed to replace to fix my LG 19" lcd panel monitor I found by the trash that the light came on off, but it didn't come on. I replaced that capacitor with ; 1000uf, 85 c and 36 v (volts0...It works fine eventhough the volts and the temperature rating (36v and 85c) was not the same as the (26v(volt) and 105c ) capacitor I removed !! Further, I've replaced capacitors that had the celcius rating of 105 with the only ones Radioshack had, namely 85 c(celsius) they have been working great, but I'm not sure about any effect, nor have I heard or read (yet?) about that making an urgent difference. Many threads that I've read people have done the same, so we should be ok (my stuff has been running good for a while longer then most brand new ones!.............(all these ratings ; 'uf ' and 'c' etc are on the side of the capacitor you are replacing and on the side of the ones you are replacing them with)...For all this all you need is the cheapest solder gun u can find (I bought one for $7.99 at Radioshack), a camera (to take pictures as you go to remember how to reassemble the unit) and, once you have your materials, 20 minutes to replace 2 or 3 capacitors and you are good to go...Most monitors and tvs (lcd/plasma) I've seen you have to lay flat on the ground/bed/blanket etc, to work on (screen side down). Usually there are 2 or 3 screws (or a few more) to remove, then you will have to carefully (its comes off easily most times)insert a flat screwdriver inbetween the casing and gently pry it up as you go around the whole frame. Sometimes you have to remove the little washer arouind the cable input orso, just be gentle and you cant go wrong. Once insidet here will be a box with wires running to the sides etc...unplug, gently, these wires and open the box. Inside you will find 2 or 3 circuitboards, check them all for "popped" capacitors, replace, reassemble and plug it in....Have fun becoming an overnight tv mechanic lol! ..If this helped you (or not )please rate, thank you!No power except blinking yellow LCD - 48e4356.jpg

Posted on Feb 04, 2010

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I hav an LC AQUOS TV Model Number LC-C3234U..The power button keeps going off and blinking green..tried holding power button down but it comes on yellow and then goes to sleep blinking green again..wh


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The power light is constantly blinking in yellow. before this happened the yellow light was on without blinking I turned it off, once I turned it back on the light turned green but the screen...


try unplugging your t.v for 10-20 seconds. plug it back in. if your power light continues to flash your t.v is the issue. you should be able to google your issue or check your owners manual about the problem. unplugging the t.v is the last ditch effort. Good Luck!

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TV wont turn on, there is a blinking yellow light ...


Hello,
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I have a toshiba 42HL167. Love it but recently when the power is off iget a repeating blinking yellow light. Blinks 3 times pauses blinks 3 time pauses blinks either 2 or 3 times then stops for 25 seconds...


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My friend gave me his 42HL167 after this problem started after a power event during a storm and I managed to fix it by reloading the firmware.

I posted instructions on my website at:

http://www.benjammin.net/www/pages/techtips/Toshiba-Regza-42HL167.html

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1 Answer

Yellow blinking light and no power


You did not specify the brand but I assume it's a Dell and no beeps are heard, no CPU fan is turning on, only blinking yellow light. This brand usually experiences this problem.
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  2. Reconnect connectors except the one with 4 wires, 2 yellow and 2 black, then switch on. If CPU fan turns on then you have a bad processor.
  3. If the fan is still not turning on then check the USB port pins for short circuit.. disconnect it from the board and switch on.
  4. Do the same with other hardware connected to the board.
PS: The metallic casing of computers must be connected to the common ground of the power utility to protect it from stray currents that result to damage of sensitive components such as processors, memory and hard disks.

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I had a similar problem. Fleeting video, then audio only for few seconds and then nothing except the green power LED blinking on and off.
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Just 18 month old TV and out of warranty.

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BenQ FP767 17" LCD Monitor Problem - Power LED Blinks


Look for small power transistors 2SC5707 near yellow invertor transformers which go to backlight connectors.
But if problem is blinking power LED powersupply capacitors maybe an issue,check visualy and/or replacement.
Also fuse that maybe blown is not glass fuse near mains socket,It is semiconductor black or yellow colour labeled PFxxx near heatsinks of power supply secondary.

Please rate the solution and provide feedback.

Samir

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