Having problems with your Flat Panel Televisions ?

I have a samsung ln-t4053h that had a bad caps. I replaced the caps and the tv turned on fine and i put a flashlight to the screen and the screen turns on but the backlight is on 10 and it looks like its not on at all so that leads me to believe the backlight inverter. As I was testing this the power board slipped and touched a metal part in the back of the tv, sparked, and now the tv wont turn on at all. I figure that i shorted out the power board. If I replace the power board will me tv turn o



Answers :

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

I have a samsung ln-t4053h that had a bad caps. I replaced the caps and the tv turned on fine and i put a flashlight to the screen and the screen turns on but the backlight is on 10 and it looks like its not on at all so that leads me to believe the backlight inverter. As I was testing this the power board slipped and touched a metal part in the back of the tv, sparked, and now the tv wont turn on at all. I figure that i shorted out the power board. If I replace the power board will me tv turn o


... Samsung LN-T4053H 40 in. LCD Television

I think I shorted out the power supply board on my Onkyo HT-R667. I was replacing some the capacitors to repair a hdmi switching issue. I was testing the repair with the top cover off. While it was powered on I accidentally touched the metal top to the top of the power supply board CMKM-P3X. There was a spark and the unit turned off. It won't turn back on. No lights. Can it be fixed or can I purchase a replacement board if this is even the issue. Thanks


... Flat Panel Televisions

Hi, can you help me with this TV please. Hi, I have a Olevia 232-T11 LCD TV. First my TV wouldn't turn and the blue light just stayed on. I replaced the power supply board and now my TV turns on and the screen lights up but I get no picture or sound. The slave backlight inverter board has a blue light when you turn the TV on but goes away shortly after. The screen stays on but I have no sound or can't control the channel, volume or source button. Please help.


If the tv is not coming on but there is no picture or sound then it is a 100% guarantee that its a problem with the audio/video main board of the tv. I am sure that replacing the same would resolve the problem. Please get me the part number that is p ... Flat Panel Televisions

Vizio VP322. Replaced 3 bulging capacitors on power supply. TV worked great for about 2 days. Now it wont turn on. The Vizio is lit up orange on the bottom but thats it. If I unplug the wiring harness going to the input board the screen will light up black but goes back out as soon as plugged back in. If I unplug all but the AC power cord I get 5V off power supply on one and 200 on both VS and VA. I'm not detecting power at those when all harness are plugged back in.


... Vizio VP322 32 in. Plasma TV

I got a Sony Bravia KDL-40WL135. Blank screen. There's two LED lights: red standby and green power light. When I turn on the TV, green led comes on, then after about 30 seconds red led blinks once, then green resumes. The green led stays solid. I think that's a SONY error code, I tried to look it up but can't find anything useful. I have replaced the power supply, AU board, backlight inverter, logical board, and the second power supply board. Any suggestions? I haven't checked the t-con bo


Http://www.smpcshop.com/KDL-40WL135-KDL-46WL135-p-8895.html\015\012\015\012\015\012\015\012Above is a link for a service manual.\015\012 ... Flat Panel Televisions

Have Protron PLTV-3250 TV and I was told the power supply board was bad. All indications concluded this was the problem. Replaced the power supply board (FSP194-3F01 power supply) and turned the TV on. It has power, but I have no picture. I can hear the sound from each channel, but that is it. I can change the different sources using the remote control and when I come back to TV, the picture (white fuzz or blue screen) will flash for a moment, then it goes black. If I select a source that


... Spectroniq PLTV3250 32 in. LCD TV

I have Hitachi Ultravision model 46UX25K I was watching in the morning then I shut it down properly by remote control, after few hours I try to turn it on, nothing , no picture just dark screen, I can hear light noise from the back of the TV going on and off within seconds but that's all, when I push the power TV button on my remote control I see the power light goes on and off but no picture. Upon removing the back there is a red LED on a circuit board in the back that also goes on and off when


... Projection Televisions

I have an insignia 50" plasma ive had for about 2 yrs. There was a solar storm which caused the directv boxes to go out and the tv went out as well ans since then the tv won't power up. In the back of the tv we hear it click 3 times then it turns off by itself and it repeats the on/off process but nothing shows on the screen. I ordered and replaced the power supply board and its doing the same thing with the new board. Please help!


... Insignia NS-P501Q-10A 50 in. HD-Ready Plasma TV

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

I have a Philips 42PFL7422D/37 42-Inch that went out a few weeks ago. After some research i figured it was the power supply board, not it. I knew it had fried some caps somewhere, replaced the master and slave inverter boards and Shazam! it worked perfect. However, when moving the set back into my living room I bummped the screen on the corner of the coffee table and cracked it. (insert explicative here) Anyway, found a used, supposedly working screen on ebay. Bought it, hooked everything up an


... Philips 42PFL7422D 42 in. LCD TV

I have a WS-65611 that I have replaced the caps on the DM board. Before I did that, the power LED flashed non stop, Now it does the normal 70 seconds but when I attempt to turn it on, it shuts right back off. After attempting a power up I checked the error code I got a short protect error. I then removed the DM again and verified the caps were not shorted to the shield and checked the pico fuse and found everything to be good. Any ideas of where I should start looking??


Did you run the error code operational check? In not unplug the set and plug it back in. Press and hold the DEVICE and MENU buttons for 5 seconds and release. The LED should flash a certain number of times a short pause and another series of blinks. ... Mitsubishi WS-65611 65" Rear Projection Television

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

I have a Philips 42PFL7422D/37 42-Inch that went out a few weeks ago. After some research i figured it was the power supply board, not it. I knew it had fried some caps somewhere, replaced the master and slave inverter boards and Shazam! it worked perfect. However, when moving the set back into my living room I bummped the screen on the corner of the coffee table and cracked it. (insert explicative here) Anyway, found a used, supposedly working screen on ebay. Bought it, hooked everything up and


Good day Richard!!!Actually sir there's no way of figuring out the screen whether it is good or bad unless you try to test it in actual..You said your unit is working fine now but the screen have cracked right?so you need for that TV ... Philips 42PFL7422D 42 in. LCD TV

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

47LG50 screen light goes black after about 45 minutes of being on, sound still ok. Turn the tv off and back on and its fine for another 45 mins to an hour. The on/off light goes from red to blue-ish when screen goes black. As a note I took out the power board adn checked the capacitors and none where bulging or burst (someone said maybe they are drying out)...does that sound like the problem of is this an inverter board issue. I just want to change the what might be the most likely issue


Good day!That problem is commonly happens when the inverter board failed.But before you replaced that its better to check this out first.Just follow this simple and D.I.Y procedure on troubleshooting. ... Flat Panel Televisions

47LG6000 - aka 47LG60 - starts to power up, backlight on, then screen flickers regularly, no response. Which part to replace?


... LG 47LG60 LCD TV

I bought this N2635W it wasnt turning on. (So I thought it was the power supply) I bought a new power supply, and still didnt turn on.( So I thought it is the main control board) I bought a usded controler board, then it just turned by itself and there was only a white screen. No sound no controls responding. ( So i thought it needs a new one). I bought a new controller board from viewsonic,. Now it responds to the power button, I can turn it on and off., but still theres only a white screen


The tv Tuner signal board is the cause and the problems.That the board,where the incomming broadcasting signal cable wire plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish tv Tuner signal board for the replacement. ... ViewSonic N2635w 26 in. LCD Television

LC320ss8 shut down Red led lit - turn on - green led flashes 2 times - goes back to red led - power company had been working in area and power would ramdomly go out. At first would power up after unplugging and pluging in. no obvious burnt parts no caps appear to be bulging or leaking really need info on where to check for what voltages. schematic would be even better


... Sylvania LC320SS8 32 in. LCD Television

Have a Proview pa-19jk7. When you turn on the TV, the logo screen appears, then the whole screen goes blank. If I try it in a dark room, I can see the picture with a flashlight, and sound is good. I have taken it apart, and dont see any blown caps. I just dont know if its, the power supply, inverter, backlight. Are there any clues from the logo screen appearing first? Thanks!


In this the the backlighting is done this way - the power source delivers an low DC voltage of around 24 volts to the inverter board , the inverter board ups that to about 500 volts DC and delivers them to the CCLF tubes (basically some thin neon tub ... Proview PA-19JK7 19 in. LCD Television

I have a lcd 26 protron tv.when i turn it on the screen will flash and go to a black screen.it will only flash when i turn the channel,but nothingelse happens,The green light turns yellow and then back to green again repeatedly.I saw that the power board has capacitors that have shrunk the label on themm,what does this sond like.


Hello there,The Switch Mode Power Supply (SMPS) is known to go out, and the usual suspects are the electrolytic capacitors. If you can still see the values, try replacing them one at a time. just make sure you know the ratings and values ... Flat Panel Televisions

Toshiba 40rv525rz shut off while playing xbox. When it shut off i could see a small white line on screen then went black. Tryed to unplug it for 5 minutes and would not turn back on. All it was doing was flashing the lit toshiba emblem up and nothing else! Talked to a couple of people and they told me it sounds like a power supply problem! So opened up the tv and saw that the power supply had a burnt resistor and there was also sut on the backlight inverter so i ordered a new power supply and in


... Toshiba 40RV525R 40 in. HDTV

My zenith plasma 42w46x tv. doesnt show pic. the sound is there but no pic. I opened it up and founf out the the board on the right side of the tv(looking at it from the back) has two fuses, one of them is blown out, and when i replace it, when the tv is turned onit make a slight buzzing noise and the the power is turned off. but if i dont put no fuse in the box it turns on with the screen black.


Hi.The board you are talking about is called Z-sus. Its role is to sustain power to the plasma panel. If the Z-sus board fuses keep blowing, then the board is usually shorted, and the repair is done replacing the board.In some case ... Flat Panel Televisions

Vizio VW42L HDTV. I lose audio and video after several minutes but the power light remains on. If I turn power off and on right away, the screen flashes and then nothing. If I wait awhile, I get audio and video for several minutes then the same thing happens. I looked at the power supply board and it doesn't look like any of the caps are bulging.


Please replace power supply board that seems defective and causing problem.Required board would be available in shopjimmy.com ... Flat Panel Televisions

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 VP42 HDTV (inside says LG PDP42X3U400). One day I turned on the TV and heard a pop. I took off the back of the TV and inspected the main power supply board (P/N 6709900019A). Capictor C802 had totally blown up. The tv would not power on at all. I removed U801 and when plugging in the AC cord I heard two relays turn on and then back off after 1 to 2 seconds. I gave up troubleshooting that board and bought a new power supply board. When I installed this board and plug in the


If Va and Vs are missing even when the Y-sus board is disconnected from power board then the new board is defective - return it. On the original one the board is shut down (the relays are disconnected) because there is still a short on one of its out ... Flat Panel Televisions

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: 0.3156 seconds