Having problems with your Flat Panel Televisions ?

I have a Sony KDL-46S4100 LCD that was given to me that doesn't work. It powers on and the power LED is green and the backlight to the tv works and stays on as well but I get no picture or on screen display such as the menu. I can hear sound from the speakers when the input is set to the correct one. I purchased a replacement T-CON board but the problem persists. If I do the LVDS cable wiggle test I can see noise come up on the panel. It varies from vertical lines of different colors to whe



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Repair Help & Product Troubleshooting for Flat Panel Televisions
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I have a Sony KDL-46S4100 LCD that was given to me that doesn't work. It powers on and the power LED is green and the backlight to the tv works and stays on as well but I get no picture or on screen display such as the menu. I can hear sound from the speakers when the input is set to the correct one. I purchased a replacement T-CON board but the problem persists. If I do the LVDS cable wiggle test I can see noise come up on the panel. It varies from vertical lines of different colors to whe


... Sony KDL-46S4100 46 in. LCD TV

I have an LG 42PC3D Plasma set. The set would not turn on so I did some trouble shooting and found and replaced all the capacitors on the power board. Some were bulging so I decided to change all of them. I also replaced the shorted IPM (the large chip under the heat sink) and related fuse on the YSUS board. I now have a working set again. The problem I am having is the much typed about "red sparkles" on the left side of the screen when a dark background is present. I have read many posts abo


... Flat Panel Televisions

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

I have a insignia ns-lcd37 that has sound but no picture so i assumed a bad t-con board i replaced the t-con board with a new same problem left tv on for hours in a darkened room i saw no backlight i checked all my voltages at the power supply every terminal checked out good what could it be


Its 100% sure that the source of the problem is the backlight inverter board. The fact that there is no backlight confirms this. You will need to replace the backlight inverter board to resolve this problem. If you can get me the part number off the ... Flat Panel Televisions

My plasma samsung ppm63mf7: no power, all caps OK, ceramic fuses OK, I replace a failed sustainer board. Now power just clicks and blinking power lightrnSo I unpluged T-con board and Main board to check for shorts but problem persist.power board# bn96 03736a* does any body have experiance with this model Tvs


I had a similar problem with mine, i had to change couple of caps but it still would not power on. I ordered one online and it seemed to solve the problem. the power supply board for the TV are a bit expensive but this guys over at had one for under ... Samsung PPM63M7F 63 in. Plasma TV

Signal problems set plays great even up to a week at a time but then start to see lines in screen followed by blue screen with no signal then set turns off by its self..happens with cable and antenna connections..turn set off and resets for a while..is their a board to replace..


... Vizio M260VA 26 in. HD-Ready LCD TV

I have a sony kdl-46s2000 no pic or sound the backligh is on and the audio and video boards have both been replaced by sony but still same problem can it be the t-con board there is no error flashes on front green light is on when powered up


If it's not the t-con board, There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both - but in your case, most likely the power supply.Any caps in these (or any) sections that lo ... Sony BRAVIA KDL-46S2000 46 in. LCD HDTV

Samsung LN46A550 LCD power on/off problem again. Red light blinks 11 times, then clicks and then repeats the cycle. Only way to turn off is to unplud the set. Have checked capacitors and they are fine - no bulges. Replaced the power supply board and still have the same problem. What next?


Apparently this is a known problem with flat panel TVs made a few years ago due to bad capacitors in the power supply. This same problem appeared in computer mother boards at about the same time so that the capacitors went open or shorted causing pr ... Samsung LN46A550 LCD TV

My Samsung hdtv model LN46B650 has a hazy screen with vertical thin lines running from top to bottom. These thin colored lines move and change colors. Some get wider then thinner. I have tried replacing the T-con board but that didn't solve the problem. Any ideas what is causing the problem. Thanks.


You should download the PDF and learn what the T-CON/LCD panel failure can do to what you see on the screen.\012\012 ... Samsung Flat Panel Televisions

I have a hcn5527w rear projection tv i hafd a bad bowing effect and all colors were off set after reading what many of theexperts said it sounded like a convergiance problem so i order a board not just the chips and replaced most of the bowing went away but some is still there and the colors wont merge on th left of the screen when your looking at the manual adjust screen the reds + are off set left and on the right they are offset right i adjusted the center to perfect i che


Did you try aligning the crosshairs of red blue and green in convergence adjustment? Also what adjustment did you perform? Auto-adjust or 9-point adjustment? ... Samsung HCN5527W 55" Rear Projection Television

It started with the convergence going haywire, not fixed by restoring factory default or advanced adjusting of convergence. I turned the set off and unplugged it. The next morning it would not come on - only the green light flashing. Coincidentally (???) the cable box also would not even power on - had to be replaced. I researched and found the problem with the green light (DM board kit available with 7 capacitors and 2 fuses plus instructions). But, am I going to have to replace the convergenc


Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both. Repair kits with instructions are also avail from ... Mitsubishi WS-55511 55" Rear Projection Television

Samsung LN46A550 LCD power on/off problem again. Red light blinks 11 times, then clicks and then repeats the cycle. Only way to turn off is to unplug the set. Have checked capacitors and they are fine - no bulges. Replaced the power supply board and still have the same problem. What's next?


... Samsung LN46A550 LCD TV

I have an update on my problem with the backlights not working. I replaced the Main board with what I thought was the correct version but it is not. With the new Mainboard installed the backlighting c


3x flashing LED usually points to a main board problem. And yes many Sharp LCD TV's have several different versions of main boards for the same model #. And as you found out, they are not interchangeable. You need to return the replacement main board ... Sharp AQUOS LC-46E77UN 46 in. LCD HDTV

Convergence issue I apologize for not having the exact model number. I have what seems to be the typical convergence issue with my TV. I have pulled out the board and tried resoldering the 2 main chips but the problem came back. I would like to purchase chips for this but I want to make sure I order the correct ones for the 42" set. Do you know which chips that I need?


It depends on which model you have. You will also probably need to replace a few resistors. ... Projection Televisions

Convergence replaced convergence chip and resoldered tower...convergence fine on tv portion...watching tv its fine. the problem is that svideo..composite and dvi stilll have convergence issue. is there a seperate board or fuse or chip that would cause this? will try to manually set covergence again. any help is appreciated


Sounds like your talking about an RCA HD rear projectio n if so the convergence defaulst will all have to be set and saved for each format. I can assist with info on how to do that if you send me a email to ... Projection Televisions

SAMSUNG PN50B860 switches inputs by itself, and will also change volume by itself, and IR sensor flashes after set warms up. Tried replacing the IR sensor board...but the problem remains. Any ideas?


I had the same issue. I ended up replacing the main board. Part number BN-94-02821B ... Samsung PN50B860 Plasma TV

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

I have a Vizio TV VO320E model that I bought with a bad image problem. I have sound and it responds to the remote. The image is white with vertical lines that move across the screen. The T-con board is attached to the LCD panel, it is a small card measuring 1 "x 16", Two flat cable going to the LCD. I do not know if the problem comes from the main board or the T-con board (attached to the LCD)? There are several main board for sale on Ebay. Can you help me determine which one is failing.


Hi.based on my experience in repairing LCD TV's according to what you describe the problem must be on the T-con board however do first some re soldering on the t-con board and re tighten all the connectors on it.A loose cable connectors could result ... Flat Panel Televisions

I have smasung dlp 6756/xaa after replace SMPS main board, when i turn on the tv I got burning smell found middle of the tv section hehind screen wheel looks like electrical signal cable burned off, i already changed lamp, changed SMPS board and finally burned off cable. I am tired of this process, right after 1yrs late since i bought it starts problem. first symtom was light blinking, on and off, so i replace lamp, and changed SMPS board and more and more. some say digital board problem or so


... Samsung HLT6176S Television

KDL52w5100 power problem after replacing T-Con


... Sony KDL-52W5100 TV

Video boards Had to replace the power board. Television now powers on, but there is ghosting of images and distorted color. I have tried to adjust the picture settings to no avail. There was never an issue with any imgae burn or color issues prior to replacing the power board. Before I replace the video board, is there anything else that may be causing this issue?


Have you checked it using a different input device such as a DVD player? Have you ensured that the replacement board is exactly as per the original and the voltages at connectors are in same position and rating? If there is a voltage drop in any o ... Panasonic VIERA TH-42PX60U 42 in. Plasma HDTV

I need detailed schematics with wire codes and values for diagnosing problems I am having with a Westinghouse SK-26h520s. The original problem was a dead machine, no indicator light so no power, replaced power supply now have indicator light but no sound or backlight, figured bad main board. Replaced board, made no difference. Any information, help or schematics with points and corresponding values to test with a volt ohm meter would be greatly appreciated


... Westinghouse SK-26H520S 26 in. LCD HDTV

Trying to hook up to a new Dish network box that was sent as a replacement. Before I can go through the Dish set-up the TV picture blinks on and off constantly. I have replaced the HDMI cable, confirmed that the input setting is correct and cable are hooked correctly. Is there a resolution compatability issue?


I would try using a gold plated HDMI cable. Often the problem is that the cable is not capable of sending enough frames per second. I replaced mine with a slightly better quality cable I picked up at Sears for $25.00 and the issue was not only resolv ... LG 42LE5400 42 in. LCD TV

Problem with TH-C50FD18:Gives off 2 blinks I replaced the D-board and the A-board to no avail. The power trips the moment the 15Volts ON occurs to send 15volt power to SS, D-board, A-board and SC-board. I found no short on this 15Volts line that is switched by the MC701 Power MICOM Processor. It looks like a 15Volt error is detected, nonetheless.That's why it always reverts to standby mode. Could this be a 15volts power regulation problem? (I suspected the affected unit could be the standby pow


... Panasonic VIERA TH-C50FD18 50 in. Plasma HDTV

Replaced the T-CON board on a dynex dx lcd32-09 no issue resolved


Check all ribbon connections, and LVDS (cable from main board to t-con) connections. I'm thinking you may have an issue with the LCD panel itself. If that is the case, it will not be worth repairing. ... Dynex DX-LCD32-09 LCD TV

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