Having problems with your Flat Panel Televisions ?

Black screen and have sound vx42lhdtv10a(vizio 42 2008)power supply is ok(12v,24v,5v) main board have 4v and all fuses is good . my question is? how can i test my inverter board output voltage?how can


\015 Inverters board looking good(visual inspection)when turn on my tv my screen is black(logo vizio is white work good)my tv back you can see in both side of the inverter boards a white light.( master turn on a blue light like 5 sec and a turn off. have sound,remote control work good.\015

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Black screen and have sound vx42lhdtv10a(vizio 42 2008)power supply is ok(12v,24v,5v) main board have 4v and all fuses is good . my question is? how can i test my inverter board output voltage?how can


... Vizio Flat Panel Televisions

Hi Cindy Wells, the Sanyo DP19648 LCD TV failed at 2 yrs and 8mth that I bought for my parents. I can see a faint image with a flashlight and there are no apparent burns on the the board that powers the LCD lights. My question is: If you see the faint screen , as in your fix, should I test the bosrd output as well? Also, I went to inventgeeks.com, he was fixing a monitor is it as easy as he should us? Mom's got a new TV, bought her a toshiba LCD with Visa so I've double here warranty but I hate


IF you can see a faint image it means that the backlight of the tv is not operational, usually due to failed inverter board. Replacing the same should help you resolve this problem. In this particular tv the backlight inverter is part of the power su ... 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


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

Dynex LCD 19-09.Nothing but a white screen.I first installed a new power supply/inverter board.White screen + audio.I have now installed a new main board.White screen,no audio.I am assuming these replacement boards are good---got from ShopJimmy.com.I am the rankest of amateurs;don't know how to test them. Thanks!


Well the only board left to replace is the LCD Controller board (TCon Board) so that must be it.\015\012I think you will find that the cheaper models of LCD tv's are not worth the trouble of fixing. The cost of new parts are almost as much as a ... Flat Panel Televisions

I have a Sharp LS-26SB24U that has a white screen when turned on. I tested main fuse and F404 fuse both were good. I tested power going from F404 to ground and it was 13v on both sides. I guess my next step is to see if the T-con board is getting power but I'm not sure how. I tried following a white line that said power and along is was a hole and I went from there to ground but got nothing. Any help would be greatly appreciated.


... Sharp LC26SB24U 26 in. LCD TV/DVD Combo

When switched on the sound is OK, but on the screen are seen only coloured vertical lines not very bright. Found blown capacitor 2200uF/10v from power supply board +5.4v. Changed it ,but nothing. The inverter is OK. After disconecting CN503 and turning on the TV the screen is dark,the bach lights are on and no vertical lines are seen. This problem ocured when the TV was working and the picture was good.


... Samsung LE27S73 27 in. HDTV-Ready LCD TV

Sharp LC-26SB24U Im getting a white screen. I tried testing main fuse and F404 fuse they are good. I'm getting 12v at the fuse both sides, how do I check power to the T-Con board and is there anything in between I should check.


Check all capacitors on the circuit board. ... Sharp LC26SB24U 26 in. LCD TV/DVD Combo

I have an ELCHS321. My backlight started to flicker. The inverter board is JLS-05-32EI. I have the back open and noticed that the LED on the inverter board was blue and flickering as well. As the set warms up the LED turns white but still flickers. The LED goes solid white and the flickering stops. Is this caused by the inverter board or or the backlight. Is there anyway to load the inverter board output to isolate th problem.


I would suspect and check first the voltages going there to see if low when cold and come up and if they are moving up and down when it flickers----points to problem in power supply ... Element ELC-HS321 32 in. LCD TV

I have a vizio vz37l tv. When i turn it on the screen lights up, however there is no picture on the screen. the sound works, its just no picture on the screen. I read on a couple of the posts on here, and figured the proper course would be to replace the t-con board. I just finished replacing the tcon board and still the same thing. I called vizio about the problem and they say that if the screen lights up then the problem wouldn't be the backlight inverter boards, that it might be as simpl


Its the main board... ... Vizio VX37L Television

My TV is showing convergence symptoms: the screen looks like 3D effects and as if someone is pusing in the middle of the screen. I've replaced my STK's, 2 pico fuses on the G board, and tested each convergence resistor along with the pico fuses on the D board--albeit they were still soldered in place. I desoldered two pico fuses and one resistor to test them in said manner, but they checked out fine. I've gone over every square millimeter around the soldered area of each STK with a microsco


One of two things:\015\012 Either:\015\012 a) The STK chips you put in are no good (not uncommon)\015\012\015\012or\015\012\015\012If you weren't careful you may have removed a surface mount resistor accidently whi ... Sony KP-57WS500 57" Rear Projection Television

Polaroid LCD tv - model TLX-04244b . Flashes the blue polaroid screen then goes black ,I hear a buzz coming from the inverter board. I have replaced both inverter boards and the same problems exisis .


I just changed out the invertor boards and mine was fixed. I had the same problem. Im not a TV repair man but replace the board thats buzzing and it will work again. ... Polaroid 4226TLMB 42 in. LCD TV

Started out as no pic but still had sound - expert told me to replace z sus board which i purchased and did! now there is no pic and it makes a popping sound when turning it on to test it! Took tv to repair shop and now they are saying y sus board no good and poss z sus no good also! This unit has maybe been used a total of two years since purchase. Can you help clarify which board? Or verify if it would be 2 boards?


The y and z sustainer are always suggested to be replaced at the sametime as they work together to power the frontlight to the screen. sounds like the z board you got my be faulty with the popping noises, try to distriguish where the popping is comin ... Flat Panel Televisions

I have a silvania Model No. LD370SC8 S and after 20 minuta the screen goes white i can see the blurry imagen but the screen stay white until i turn off the tv and let it cold down,the audio is fine and imagen work good for 20 minutes after get white screen,i replace the lcd controller board and the main tuner board and the problem still exist...any help...thanks in advance


Hello\015\012Have you checked the voltage at the video board when it goes white? Goes white screen means, only backlight is there, and no video at all. Check this. If loss of voltage or less than normal voltage it should be there, power swit ... Flat Panel Televisions

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

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 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

Blank Screen When I turn on the tv, it looks like the backlight is going to stay on, but it shuts off. There is sound to the television still, and it looks like there is a faint outline of what is supposed to be displayed on the screen. I heard something about the inverter board, but is it the board or the lamp itself?


... Samsung LN32A550 32 in. LCD TV

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 vertical lines on the entire right side of the screen on my Olevia 242-S11. I've replaced the t-conn board three times, the first and third gave me a black screen, the second gave me less vertical lines with the rest of the right side blurry. The t-conn boards were from ShopJimmy.com they said I might need to have my panel tested.


Most of the stuff from jimmy's its second hand ( not good working or working maybe) first and the last i suppose you got a problem with the power supply on the T con on the second i suppose you have a problem with the big chip in the middle the scali ... Syntax Olevia 527-S11 Television

LG 50PG25. No picture but good sound. Y-sus and Z-sus boards recieve good power. Z-sus board gets hot to touch on haet sinks and is noisy (buzzing). Y-sus does not get warm at all and is quiet. Are there any other tests I can do to determine cause? Thank you! D.Chase


... LG 50PG25 50 in. Plasma HDTV

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

Hi, I came across one of your posts and had a question.  I have a p50hdtv10a, it  died, now the screen flickers and turns off. I've noticed that the led on the main board's power input shuts off and then a relay on the power supply clicks and the tv shuts off, the ysus board is clicking while all this goes on, the pattern of the flickering and the clicking on the ysus board are dead on. Which board could cause these symptoms?


The transfformer and Transistors on the Y sus . Replace the Y sus and you should be fine. There were 4 different Ysus boards used in that model. Contacting the guys at www.tvcir ... Flat Panel Televisions

Replaced inverter boards on Toshiba 55g300u. Help! screen won't turn on again after only two weeks


... Flat Panel Televisions

BLANC SCREEN My 42" RCA LED47A55RS just went puff.. when I was watching a video. I don't get any picture. The screen is blank. If I leave it on for while it gets about 6 vertical white lines for about 1 minute and then its blank again. No sound either. Check for bad or burnt capacitors and other parts but everything looks good. The only board that smells bad is one near the speakers, lower part, a small boatd that has to connections going to the LCD screen. I checked for the part number but


... RCA Projection Televisions

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

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