Having problems with your Flat Panel Televisions ?

I have 42 visio will not turn on makes a double click sound when i pug it in wall plug . The yellow light on front of set is on but no picture or sound. What could be the porblem main board or power board



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I have 42 visio will not turn on makes a double click sound when i pug it in wall plug . The yellow light on front of set is on but no picture or sound. What could be the porblem main board or power board


... Vizio L42HDTV 42 in. LCD Television

I have a baird x47dtv and we turned it on today but had no picture or sound. the blue power light comes on and flickers as it should on startup of tv,however we are still not recieving a picture. i have replaced the psu's approx 6 months ago so i know theres no problems there,but am unsure which part i need to replace as it could be 1 of three things. 1 it could be the main board, 2 it could be the power invertors or 3 the screen. any tips would be helpful


Tried to disconnect first the supply voltage of the inverter board and then turn on the tv. if the indicator stay which mean the inverter board would be the cause of shut off or the tv turn to safety mode. ... Flat Panel Televisions

HI, I HAVE SOUND ON THIS SET BUT NO PICTURE. THE SCREEN IS COMPLETLY BLACK. I LOOKED DOWN THE BACK OF THE TV AND THERE IS NO LIGHTS. BUT THE VIZIO FRONT PANEL LIGHT POWER ON . I BELIVE IT MIGHT BE THE INVERTER BOARD IS BAD ON SOME PARTS ON IT. SOULD I REPLACE THE WHOLE BOARD OR FIND AND REPLACE BAD PARTS. THANKS.


Hi try and see if you can replace the whole thing and git a new one ... Vizio VO320E LCD TV

I have an RCA L32WD22 that has picture but no sound. It wasnt powering on so I changed some capacitors on the power board and now it powers on fine but no sound, so I ordered a new sound board and still no sound, all connections are snug, what could this be??


Make sure your power supply outputs are all within tolerance. Second verify that mute isn't turned on. Next, check and see if your model gives you the option to turn off the internal audio. Some sets give you this option for those who want to use sur ... RCA L32WD22 32 in. LCD HDTV

I have a vizio vp50 hdtv20a. A while back we turned it on no picture and it started to smoke. After reading a little about it I decided to take off back panel and see if I could locate burnt part. Could not locate burnt part so repair man came and we plugged in set with back off and turned set on. Resisters on y main board started to get red and start to smoke. So we figured it was a bad y main board. Repair man said he would order part and get back with us in couple days. Three weeks later


That board directly connects to the display panel---you may have a bad display panel which if is the case is fatal---panel alone will cost more than the set did when new----seen this before in the shop where I repair sets. ... Samsung Flat Panel Televisions

I have a Vizio VW32LHDTV10A that produces sound but no picture. I have checked the main power board for 24v to both backlight inverters and 24v is present. I then hooked up both backlight inverters and turned the TV on and the blue LED on the Slave inverter comes on, but goes off after only a few seconds. What further tests could I perform to check which part is defective or what component is the most likely cause?


When you reconnect the inverter boards, when the LED goes off on the inverter board, do you still see 24vdc? You shuld also ty hooking up test lamps to the 24vdc to see if it will stay on.\012Right now I have a feeling the problems are in the b ... Flat Panel Televisions

I changed the main power board on my Sanyo DP52848 thinking it would solve the problem. There still is no picture or sound. The green light is on. What could it be?


... Sanyo DP52848 52 LCD TV

No picture or sound with a red flashing power light. Have replaced the convergence IC's but no change (do not have the chirpint sound). Removed main power board & green LED does not light up


On that model the conv IC is usually not the solution. I believe its the blown capacitor problem with is an easy fix. Check the site www.TvRepairKits.com for a repair kit. ... Hitachi 53UWX10B 53" Rear Projection Television

I have a 42PA30RQ RCA Plasma = Has sound , no picture, makes clicking noise when I turn the set on. I changed the main supply board, av board, logic board y sustain and x board. Still no picture, just clicking and sound. Did not see any bad capacitors.


... Flat Panel Televisions

I have a Vizio Model SV47XVT1A LCD, it powers up but no picture or sound. I put a new power supply board and it does the same thing. Could it be the back light inverter board?


... Vizio Flat Panel Televisions

I have a TV model: Vizio VX37L HDTV10Awith no sound no picture and the vizio comes on orange and the turns white the picture has vertical lines with black and white lines some red. None of the three boards look burnt and it won't turn on or off unless u in plug it. Any ideas? I assume its the main board from the sounds of other people talking. Could u help guide me please.


... Flat Panel Televisions

No picture I have replace logic main board and y main board but it remain into standby when it does not show that the is remote interference and I plunge out the logic main board from the power supply it gives sound and I can change channel.


... Samsung PS42B430 42 in. Plasma TV

Hitachi 55HDT52 tv has no picture or sound. I have replaced power supply board, x sustain board, both didital boards, logic board, and incoming power filter board. Snot chips look good. I have green flashing LED in front of tv.


... Hitachi 55HDT52 Plasma Television

My Vizio 55XVT1A power on, has sound, but no picture. I changed new power board, main board, T-cond board, but it still same problem. What's wrong with it? Is it anything with inverter board? Than


If this is an LCD tv the backlight inverter is bad, a good way to check it is to shine a flashlight close to the screen and see if you can see a faint picture.Let me know what you find ... Flat Panel Televisions

Samsung dlp hls4666wx TV. After a power surge, my TV shuts off after about 4 minutes. The stand by, TV, timer lights flash...manual says it's the bulb or fan. Only, I bought a new bulb, and noticed both fans are working. Still does it. It makes a small pop them hiss or buzz sound when it offers the bulb down. The power supply and ballast look ok (circuit boards). Perfect picture and sound before shutting down. I've heard there are 3 fans but only see two. Could it be another fan I don't see? Or


... Projection Televisions

Hello. My tv will not turn on. I metered the power circuit as far as I could, and it looks ok. The fuse on the control board is good. The power switch meters good. When the tv failed I heard a small popping sound, but did not smell any smoke from a damaged component. I cannot tell if the problem is with the control board, or with the picture tube. Thanks


It sounds that the power supply regulator section or main board has the fault. Check it with the help of schematics. If you are not handy, seek any technician's support. ... Emerson EWF2006 TV

When plugged in the power switch keeps turning on and off with no picture or sound. Do I need to replace the power supply board or the main board?


... Samsung LN46A630 LCD TV

I have a vizio vp422 that made a loud pop and now doesn't have any picture or sound. When you power it on the vizio display light turns from amber to white but that's it. U have to unplug it to turn it off. I have checked the fuses and they are good. The capacitors look good visually. There are a couple on the power supply board that have a black cover over the top, so I don't know about those. I changed the main board and made no difference. Someone please help!


Replace its power supply regulator board as card basis. ... Vizio Standard (CRT) Televisions

I have a samsung HP-T5054 plasma tv the tv powers up and the samsung tone is audable but i get no picture on the screen the screen is not broken the power light flashes 5 times then is steadily lit on the digital board in the back of the set led 2000 and 2001 stay lit led 2003 light for 2 seconds then goes out but led 2002 flashes every second I had a shop test my Y main and buffers with a set that they have and those parts test out I am a electronis tech with 12 years in the A/V repair field


... Samsung Flat Panel Televisions

Vizio VT470M no picture, no sound, no backlight. Power supply board looks good all voltages appear correct (24V, 5V, and 3.7V) and no "bulged" capacitors . When I unplug unit for two hours, the screen comes on normally backlight comes back up and picture is normal, but changing the channel causes it to go dead again. Bringing up menu with remote is really sluggish and when attempting factory reset, it goes black. Vizio light on the front of the TV comes on and off when pressing power button,


Im having similar problem and with my limited knowledge of lcd tvs and the voltages ALL being good except the pwr on or sw on voltage from the main board to the power supply which tells it to switch everything on Im guessing that something is going w ... Vizio VT470M 47 in. TV

Philips 47pfl7422 blue power light on but no picture or sound and pulsing squeel coming from main board


... Philips 47PFL7422D/37 Television

Is the video processor board the same thing as the tcon board on a sony lc42d62u? Have sound, no picture. I have replaced backlight inverter boards & main board. Could it be the tcon board?


Yes it could be a t-con board but could also be a 12V power supply output failure. The Video processing board, and LCD panel uses 12V ... Flat Panel Televisions

I have a RCA M50wh74s Have no picture but have sound. I have replace Lamp and ballast on set still no picture, someone said it may be power board please help?


... RCA Projection Televisions

LG60PK750..TV STOPPED WORKING NO PICTURE, NO SOUND HAVE REPLACED POWER BOARD AND BOTH SUSTAIN BOARDS WILL A MAIN BOARD CAUSE THESE PROBLEMS..


... Flat Panel Televisions

Visio VO420E, The left side of screen has a 6 inch wide group of colored lines, I removed the cover and the lines are directly in front of the main circuit board area (not the power supply board). Do I need to replace the whole board or is there a component that is known to cause this? I would appreciate any help you could give me.


Lines like that are almost always a bad LCD Panel, but just to test...Bring up an onscreen display (setup menu, volume bar, etc.) that originates from the TV ITSELF, not your cable, satellite, etc. You need something that intersects the area ... Vizio VO420E 42 in. LCD TV

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