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Replaced power board d jack. all i get is a blinking screen and on button

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I have replaced all but the power supply on a 50 Samsung plasma TV and still no screen


Well, since you have already invested and replaced the other boards to no avail you might as well change the PS board. If the PS is not outputting the correct requirements for the other boards it is possible that lights will work/blink but the other boards will simply not work.

Mar 15, 2016 | Samsung Televison & Video

1 Answer

Red LED blinks four times


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. Surf the site with patience.

Mar 26, 2014 | Panasonic Viera TX-32LX70 32 in. LCD TV

1 Answer

My laptop shuts off after i turn it on.why


Does your laptop even begin the boot process where it displays stuff on the screen? Do you hear fans running, disk drives running, see lights, hear the cd drive click once and notice a light that comes on the cd drive door briefly when you press the power button? If not you computer either has a bad power cord, a bad dc power jack where the power cord plugs in, a bad mother board or static build up. 1) lets eliminate static buildup by removing the power cord and the battery then press and hold the power button for 30 seconds. Then replace the power cord but not the battery and hit the power button. If it boots up you had static build up. 2) Take an ink pen and put in in the slot where the power cord plugs into the laptop, if it wiggles loosely then your dc power jack which is soldered onto the motherboard needs to be replaced. 3) If the power jack is tight and when you plug in the power cord if you don't see any lights or hear a fan, disc, cd drive, then you can almost bet your power cord is bad. 4) If the power cord is ok then you have a mother board issue. Normally motherboards will give some beeps or constantly blinking lights when you plug in the power cord and try to boot up. These beeps or blinking lights will tell the technician what is wrong with your computer.

Mar 19, 2012 | Acer Aspire One Netbook 8.9" Notebook

2 Answers

Power light comes on for about 30 secs, something clicks and both power and ocp lights start blinking contineously. the screen does not light up


I have this model of the sharp tv.Happen to me very often the Power and OPC LED light indicators blink continueosly.Not the power supply board,it the Tuner board that take in the comming broscast signal that have the problems.You still can used this tv.Push the power button sometime the tv it will work right away.Not,each time POWER and OPC lights continueosly blinks.Just push the power button again each time the POWER and the OPC continueosly blinks.Just have push power button again about 4 times each time Power and OPC blinks recycles,it will finally show the backlight and picture come on.My guest,if u do this by pushing power button to recycles about 10-12 times each time the POWER and OPC blinks it time to change the Tuner signal board.

Jun 03, 2010 | Sharp LC-C4655U 46 in. LCD TV

3 Answers

I HAVE A 37" LG TELEVISION AND THE SCREEN AND SOUND JUST WENT OUT THE POWER BUTTON IS ON BUT NOTHING. IS THIS WORTH FIXING OR SHOULD I JUST TRASH IT...THE NUMBER ON THE BACK IS 37LC2D... CAN ANY ONE HELP...


The power LED lite indicator is solid green,but no pic.?This tv is very fixable,take it to the shop,they will order a refurbish circuit board call a T-con board from some wesites source and repalaced it for u.This should cost u half the price of a new tv.If ur power LED lite indicator is blinking and no pic.,they will replaced defective leakages capacitors in the power supply board,or replaced the power board all together.

Apr 28, 2010 | LG 42LC2D 42 in. LCD HDTV

1 Answer

The yellow power led light blinks on front of the emachine w2646. The CPU Fan works. The power button will not turn the PC on or off, you just have to plug in the power cord to turn it on. The monitor just...


Did you flash the main board ??

1.) remove battery
2.) press and hold the power button for 10 - 30 seconds
3.) replace battery.
4.) when the system boots it will say press XX (e.g F2) to load defaults and continue ,, press that key.

It could also be the power button is stuck!.

find were it connects to the main boad and unplug it
bridge the 2 pins it jacks into to turn the computer on. if it works u will need to replace that button or the case.



Feb 26, 2010 | E-Machines eMachines Desktop PC

1 Answer

It's clicking when I turn the power button on and doesn't show a picture just a blank screen and the red light just blinks.


Power supply board it dead.Replaced the power supply board will solved this problems.Tries Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Feb 21, 2010 | Sony KDS-55A3000 55" HDTV

1 Answer

630 m notebook problem


Sounds like you have a bad jack inside your laptop.  These need to be replaced by a professional, because it requires opening your laptop and soldering a new jack onto the board.

Oct 14, 2007 | Dell Inspiron 630M Notebook

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