Having problems with your Flat Panel Televisions ?

TV wont turn on. No sound or backlight. The OPC and Power LED's flash in tandem but when the power button is pressed it wont turn on.



Answers :

There is a problem with the standby section of the power supply. A flashing standby light indicate an overload which is caused by a shorted semiconductor in that circuit. It's fairly simple for a technician and should not cost much. You can't do that yourself it is electronic takes a long time to grasp.

Repair Help & Product Troubleshooting for Flat Panel Televisions
You need a second opinion or clarification ? ask it in the comment box OR you can Ask Your Own Question

Tips for a great answer:

  • Please provide as much detail as possible as this will allow our members to better understand and respond to your Comment
  • If you need clarification, ask it in the comment box
  • It's 100% free, no registration required

Suggested Questions/Answers :

It is recommended you read all this kind of situations

TV wont turn on. No sound or backlight. The OPC and Power LED's flash in tandem but when the power button is pressed it wont turn on.


There is a problem with the standby section of the power supply. A flashing standby light indicate an overload which is caused by a shorted semiconductor in that circuit. It's fairly simple for a technician and should not cost much. You can't do that ... Sharp Aquos LC-37D43U 37 in. LCD HDTV

I Have A .AWA MHDV2411-03 When I Turn On The Mains Power Switch On The Tv - To On . The Red Stanby Led Lights Up As Normal Then I'll Press The Power Button On The Remote The Standby Led Lights Changes From Red To Green As Normal And The Tv Works Fine.When I Switch The Tv Off From The Remote Or The Mains Switch The Tv Switches Off As Normal. Now When I Go To Turn It Back On Again The Green Led Is On All The Time And The Tv Wont Work . When I Leave The Tv Switched Off And Disconected For Sev


... Standard (CRT) Televisions

Hi, I bought a Vizio L32 HDTV10A that didn't power-up. There were charred components on the power board (an 8-pin IC with heatsink and 2 resistors). I replaced the power board, and the power LED then turned on (yellow) when power was applied. When the ON button is pressed, the power LED turns green for roughly 8 seconds and then the power LED turns yellow again. Nothing else happens. I checked many components (fuses, capacitor ESR, diodes, etc) on the main board and the master and slave inver


... Flat Panel Televisions

Hi, Can anyone recognise or diagnose this problem we are having with our Samsung LA32A450 LCD TV? It wont power up, no power on lights. Switch on side of TV wont turn on. Remote wont power it up. This may be the key ..... My wife tells me that my 3yo was playing with the remote & the buttons on the side of the TV Would there be any strange combination of buttons pressed that could have rendered it useless? Could close proximity remote activation have caused anything?


Hi g_coopster,\015\012Samsung LA32A450 LCD TV wont power up or no power on lights that indicated that no power line.\015\012First of all, check the power line, cable AC cord is it installed properly, change ac cord if necessary. If you ... Samsung LA32A450 32 in. HD-Ready LCD TV

My Hisense HSLC2629HDI wont turn on, i will turn it on at the power switch and the red standby light comes on, i press the "on" button and the light flashes blue about 10 times then the TV looses all power and everything gets switched off, even the standby light. Help please?


... Hisense TL3000 30 in. HD-Ready LCD Television

The unit is around 3 years old. When the power button is pressed, the red LED turns blue and stays on, but the screen is black. If the INPUT button is pressed, a blue box appears in the upper right corner of the screen for a second, then disappears. Does anyone know what could cause this? I am not afraid to tackle electronic projects and have the correct tools...I just have no TV/LCD experience. Any help is greatly appreciated


There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.If you ... Proscan 42LA45H 42 in. LCD TV

I got problem on my LG TV CA-20S90T, when it power on or press the power button, led for indicator blinking and the power could not turn on.


REPLACE EHT AND HOUT IF UR B+ IS OK ... LG Standard (CRT) Televisions

My LG 52sz8r tv wont turn on. It suddenly stopped working. I presumed the bulb needed replacing as the bulb light was on before it stopped working, but did not come back on. however after replacing the bulb the problem remains. After pressing the power button the red standby light comes on, but when i try to operate the tv the standby light turns green and blinks about every second and nothing happens. I can hear a small click in the unit a few seconds after trying to turn it on. any suggestions


... Flat Panel Televisions

My JVC model HD-522585 turns on however there is no picture and you can hear a clicking noise coming from the back. A blue LED flashes continually until I unplug the TV and will not turn off if you press the power button. Any Suggestions??


... JVC HD-52Z585 52" Rear Projection HDTV-Ready Television

Display Doesn't turn on anymore. When i connect it the blue led light on but nothing happens when press the power button, just start to blink the blue led and then stop. This happened after i notice some read dots and lines coming and going in the top half of the screen. Any idea of whats happening or a possible solution??? Its a samsung 42" plasmas with like 2.5 years.


... Samsung PS42P2S 42 in. Plasma Television

Hello, I have an RCA standard definition television. Whenever I press the power button, instead of turning on the red power LED flashes (about 24 times) and then stays lit. There is no picture or sound, the tv stays black. Can you give me any advice on solving this problem?


The High voltage Horizontal output transistor is dead.That the transistor sit outside of the wall of the FBT-flyback tranformer is a black block of plastic with a red wire with a cap hook to a CRT-(tv tube) U have soldering iron,a roll of solders and ... RCA TruFlat 27F520T 27" TV

My emprex tv wt323 wont turn on all of a sudden. when i press the power button the power light flashes green for a second then goes back to red and no sound or picture. whats wrong with it ?


... Projection Televisions

I have a Sony bravia KDL32 L5000. pressing power button will turn green light on, but no picture no sound. Cannot turn tv off by power button. Have to unplug tv to turn off. Can hear click when you plug in tv and when you turn on with power button.


Hello,You need to check the output voltages of the power supply to see which one goes off. It may be due to short circuits some where, if otherwisethe power supply board is dead,do you know basic electronics' and soldering? Most of ... Sony Flat Panel Televisions

My optoma pdp50 plasma screen will not turn on. when you push the power button the led turns green and then you hear a click and the led on the power button turns back red


... Optoma SP50A 50 in. HDTV-Ready Plasma Television

Hi I have a TH50PZ80U that is flashing two red lights when I plug it in. If i press the power button for 5 seconeds it will flash 10 times. When applying power the AC relays click, after pressing the power button the fans turn on and the optical audio port is red. It will stay 'on' for 3 seconds and then the relays will click on turn off. No red optical light. If I test the P25 connector pin 1 voltage it will go to 15 Volts for about a seconed and then 0. This is only achieved by plugg


I'm 100% confident that a D-board replacement will fix this issue. I've worked on 8 of these and a D-board replacement fixed the issue you are having now. I had all the same problems with them but it is all related to the D-board (from previous exper ... Flat Panel Televisions

I have a Samsung SyncMaster 730mv 17' Monitor. It's been sitting for nearly a year. After charging it, the power button does not turn on the monitor. I've pressed the Menu button & the Power button to get a reponse of a blinking green light [3 blinks] yet it will not power on when the Power button is pressed. Any ideas on what is going on??? I am not computer Savvy' [The result I'm looking for is to utilize the monitor with my Asus laptop.] -Ty for reading'


... Samsung SyncMaster 730MW (Silver) 17 in. HDTV-Ready LCD Television

I have a sharp aquos lc-c5277un. Both the power and OPC lights together blink twice. I tried unplugging it, holding down the volume up and channel down buttons while plugging it in. That left me with a solid power light on. I pushed the power button to turn it off and it turned off. Pushed it again to turn it on. It turned on and worked. 10 minutes or so later I heard a pop sound and the lights started blinking as before. This loop has played out three times. Is this the power board or


... Flat Panel Televisions

LED TV LG 42LE5500 soft touch keyboard blocked. i cant operate the tv because the buttons (touch sensitve at tvs front panel (power, volume)) behaves af if they were pressed and no other comen will take effect. the tv wont respond to the remote control neither. what can i do?


... LG 42LE5500 42 in. TV

Samsung 6100 LED blinks red twice when i push the power on button but wont turn on


... Samsung New 46"" Class 45.9"" Diag. Led 6100 Series with Smart TV"

I have a plasma LG 42PX4DV-AA tv which wont turn on, i press the stand by button and the green led light comes on but nothing else happens any ideas thanks


... LG 42PX4DV 42 in. EDTV-Ready Plasma Television

Sharp aquos wont turn on( red light is on).i kept on pressing the power button but still didnt work


I see so many here with no sound/nopicture issues:ISSUES: 1. IF sound main fuse/s are good.2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.3. almost all thes ... Sharp AQUOS LC-32D44U 32 in. LCD TV

Can power up, but only in DVD mode, stays on but if I press any buttons on the remote or the front of TV it turns off and shows a fast bliking green LED


Hello\015\012You haven't specified notheing about the TV; its model number, brabd name Etc. Without it how can I try to detect the problem of your TV. Send me these details by Fixya, please. ... Flat Panel Televisions

My tv (46in led) wont turn on. the power button blinks red on the tv rather than remaining the solid red when on standby. what is the problem? it is not a burn fuse or anything?


\012 \012 \012 \012 \012 Hello,first, ... Insignia Flat Panel Televisions

I have a Panasonic HDTV 1080i. The Tv keeps turning itself off and the power light turns yellow and blinks. If I wait for 5 minutes and press the power button the TV turns back on and sometimes it stays on and sometimes it switches back off. The lamp light does not light up or blink just the power button. Any ideas?


Hi,I am sorry to hear regarding the trouble. However, there are few possibilities that could cause the same issue. If you have electronics repair experience, and wanted to diagnose / repair the set yourself, revert and i would be able to ... Panasonic PT-60LC14 60" Rear Projection HDTV

TV remote on my model TXL2791F won't turn TV on. When I press the power button on the TV itself the little timer light blinks and the TV makes a ticking sound for a few seconds. If I press the power button again the blinking light and ticking sound happen again for a few seconds. If I repeat pushing the power button on the TV again the blinking and ticking will then go on all day long unless I unplug the TV for 15 minutes or more. All during this time the screen is dark. Just before this ha


... Samsung TXL2791F 27" TV

A detailed question is important to get you a relevant answers

  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
all rights reserved to the respective owners || fullblownbass.com || Terms of Use || Contact || Privacy Policy
Load time: 0.2469 seconds