Having problems with your Flat Panel Televisions ?

I have a Philips 42pf7421d/37 lcd tv having problems. When you first turn the tv on it seems to work perfectly fine. About 5 minutes later my picture cuts out and I get a scrambled screen. Turn it off and on, same problem. Any ideas? Hoping I can get this fixed cheaply doing it myself. Im handy but dont know much about televisions. Thanks



Answers :

First, you need to make sure all of the vent panels on the tv are clear of obstructions. Heating may be causing the problems. Next, get a hold of a clean, dry source of forced air and blow out the inside of the case and the internals of the tv.

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I have a Philips 42pf7421d/37 lcd tv having problems. When you first turn the tv on it seems to work perfectly fine. About 5 minutes later my picture cuts out and I get a scrambled screen. Turn it off and on, same problem. Any ideas? Hoping I can get this fixed cheaply doing it myself. Im handy but dont know much about televisions. Thanks


First, you need to make sure all of the vent panels on the tv are clear of obstructions. Heating may be causing the problems. Next, get a hold of a clean, dry source of forced air and blow out the inside of the case and the internals of the tv. ... Flat Panel Televisions

I have a Samsung HLP 4674w DLP. The picture started to lose color and look like a negative image. Then it would get scrambled and eventually go out. Powering on and off sometimes fixed it, but only temporarily. Sometimes it would also turn off and on by itself. I thought it may be the lamp so I replaced it, but it did not fix the problem. Next I thought it may be the color wheel so I replaced that, but the problem did not go away. Also when this happens the Power switch will not turn the TV off.


You need to change the lamp out, it builds up a internal resistance, and pulls your voltaged down, it will get to the point where you TV will not come on at all. Replace your lamp, you can get one at ... Samsung HLP4674W 46" Rear Projection HDTV

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Have you checked its speakers? If not, check them. If they are found OK, then there should be some fault to its audio output circuit. Check and replace damaged component/s, or, change it a card bassis. ... Flat Panel Televisions

My 2001 Mitusbushi 50 inch rear projection 1080p T.V. screen will turn grey soon after I turn it on each time.I temporarily stop this problem by hitting it with a hammer on its side.It will clear up if I hit it in the right spot,but then it will eventually go back to fading grey..What is causing this problem and how do I get it fixed?


... Mitsubishi VS-50800 50" Rear Projection Television

Q: Red standby light was flashing red for a few days. Now we can't get any power at all. lg model 32lc2du-u3 A: Power supply problem.... I can explain to you how to fix via email with detailed instruction and pics... Hope you haven't bought another as this is a 5-30 dollar fix. I have 2 50" that did this I fixed mine for 80 cents. HOW DO I FIX MY POWER SUPPLY?? THANK YOU>


First: service manuals http://elektrotanya.com/?q=showresult&megnev=lg&megnev2=32lc2du-u3%20 ... LG Flat Panel Televisions

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Hi kennh06,\015\012\015\012If you can take it apart, concentrate in the power supply board, this is where the power cord connected because the fault is came from it. The caused of the symptom was the leaky/dried filter electrolytic ca ... Standard (CRT) Televisions

Hi - I have the samsung 46"LCD 550. I have the problem I'm hearing about with the turning on and off repeatedly by itself and then eventually it going to a loud screeching noise. The TV then has to be unplugged. I have heard that some people are doing some kind of software fix through the usb port for this problem. Any ideas?


Can you get me the the complete model number like 46LNA550? It can be found on the label at the back of the tv. It can be the firmware or it can even be the inverter, but lets begin with the firmware ... Flat Panel Televisions

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There is a power supply fault causing the EHT to rise above 33KV.\012High voltage\012shutdown. The high voltage has exceeded 33k and the unit goes\012immediately into safety shutdown. Check power supply regulation and\012horizontal circuits. ... Sony FD Trinitron WEGA KV-30HS420 30" TV

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... Flat Panel Televisions

I have a VP50HDTV20A, was watching tv this past Sunday and all of a sudden it shut off. Tried to manually turn it on and then noticed that the yellow/green light was off....acts like there isn't any power getting to it. Checked all outlets, they work with other electrical cords, un-plugged tv and plugged in again....nothing? I wonder if this is something that can be fixed or if anyone else has encountered this problem? I don't want to have a tech come to fix it and spend the money to do it i


Could be the fuse? try replacing the fuse.\015\012http://www.diyfixit.co.uk/electrics/fuse-changing-1.html\015\012\015\012Adam ... Vizio P50HDTV20A 50 in. Plasma HDTV

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The lights may be related to each other or their problem might be isolated.For the red lamp light, it is not necessarily a faulty bulb but an error which may affect the bulb. It could be because an error detected. The fan's temperature ... JVC HD-52FA97 HDTV

I have a toshiba 52hm84 I just recenlty put in a new bulb and it has been working great. today I turned on the television and would get a good picture for about 1-2 seconds and then the screen would go black. I would change the channel and onlly get sound. Any ideas on what the problem might be?


Make sure the bulb door is secure..if not it will shut down the bulb ... Toshiba TheaterWide 52HM84 52" Rear Projection HDTV-Ready Television

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... Sharp LC Flat Panel Televisions

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If you have no lights come on the front of TV, you definitely have a power supply issue. Don't know what previous servicer did, but I would be looking at ALL wires & connectors. ... Mitsubishi WD-73735 Television

When I turn on my Tatung 30" LCD HDTV nothing happens and also when I plug it in there is a little pop in the speakers, but the small red power light doesn't come on and I hope you can give me an inexpensive diagnosis and fix. There should be a recall of these TV's to help people get them fixed for free. I paid close to $900 in 2005 and it should last longer than that.


Hi,I am sorry to hear regarding the trouble. This is a common problem and this problem might be there with any brand. Unfortunately, a manufacturer cannot recall the TV's on every fault. I understand your concern,however this is a common ... Tatung V30DMTT 29.6 in. LCD Television

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Deesturkey,\012\012Your unit was made in 1997. That is going on 14 years of use. While I like to fix all the TVs I can this one is probably going to keep having problems even if you solve this one. I have a tip at ... Toshiba TP50G60 50" Rear Projection Television

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That is correct. Sony has extended their warranty on panels for this model until Oct. 31st 2012. Just give Sony a call or simply take your set to an authorized service center and you will get your set fixed for free. ... Sony KDL-46XBR4 46 in. LCD Television

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... Sony Flat Panel Televisions

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I used to be a tv technician.it sounds like an intermitent fault,which only does it sometimes.most likely cause is dry joints on circuit board,which is faded or discoloureded solder.try resoldering dry joints ,faded or discoloured solder on circuit ... Panasonic Flat Panel Televisions

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If your TV looks 3D, warped, or distorted it likely has a convergenge problem. If however it just looks dull, washed out, redish, greenish, or blueish or if it looks like objects on the screen have halos the fluid in the lens has soured.Y ... Mitsubishi Projection Televisions

My moms tv started going by having 120v coming out of the rca jack and flowing into the home coax system and out to the pole. After that we turn on the tv and it just blinked. Im not sure what is going on but i hope to fix it. anyone have any ideas


I just got into the same problem with my tv: 120V coming out on the coaxial cable. After some troubleshooting I found that the power outlet is wired wrong: the black wire is the neutral instead of the white one and the white wire is the "hot" wire. ... RCA HD56W66 56" HDTV

My Mitsubishi WD-60C9 tv will not turn on any more. When I press the power button the status light will continually blink green, the blue welcome screen will come up and then after about 15 or so seconds it will shut off. Any idea what the problem is and how much it would cost to fix?


I am having this same problem and the tv is only about 1 1/2 years old. Please help!!! Thank you in advance. ... Mitsubishi WD-60C9 60" DLP HDTV

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