メインコンテンツにスキップ

修理を始めるには

修理する権利

ストア

Repair guides and support for televisions manufactured by Sony.

522回答 すべてを表示

I have horizontal lines on part of my TV screen.

Hi all - Hopefully someone out there might be a little bit more helpful than the Sony Troubleshooting Guide:

Sony Bravia Model No: KDL-47W805A

Only yesterday a number of horizontal lines appeared on my TV screen, only the lower 1/3 portion of the screen though. They intermittently flicker between 1/3 of the screen having visible lines to only the top three of four lines.

I have attached two pictures below which I hope go some way to demonstrating the issue.

So far I have:

1: Switched the TV off for a period of time and then switched it back on - The lines still appear.

2: Removed all the connecting cables (Amazon, HDMI, Cable) and then switched it back on again - The lines still appear.

3: Conducted a factory reset - The lines still appear.

4: Applied pressure along the edges of the TV where the lines appear - No change, the lines are still visible, no distortion to them. Although this might seem strange I read somewhere that if there is a loose connection along the LCD connectors applying pressure might confirm this is the lines change with the application of pressure.

5: Given up :(

Block Image

Block Image

回答がありました! 回答を表示 同じ問題があります

この質問は役に立ちましたか?

スコア 10

コメント:

This is usually a ribbon cable that leads from the LCD to the main video board that for whatever reason has unseated some of its contacts...if you feel brave enough and think it's worth reseating the cable...make sure it's switched off from the mains...put the tv face down on a duvet or bed...remove all the rear screws and spcables and prise of rear panel....look for the main cable that comes from the LCD and trace where it connected to the video board...disconnect one end at a time and check for oxidation on the contacts...and reseat....thus usually cures thus type of problem...if it doesn't then the next likely area of cause will be the video board itself....these are modular and you can either source the exact board from eBay or source a broken screen version if the same tv..and use it for donor..bits..or chance your arm and get a quote from a tv repairer or bite the bullet and by another set..I know some the answers are pretty obvious...but I am sure you will gain more of an idea from what's been said .

さんによる

Hi did you manage to fix this I have same problem @griffalo

さんによる

I have the same problem.. my tv is still 1 year and 2 months

さんによる

Hi @janette my tv was only 1 year and 5 months old sony bravia KD55XD7005BU I still have same problem even though I've placed the T con board

さんによる

What did you do? Is there still horizontal lines present in your tv?

さんによる

30件以上のコメントを表示

コメントを追加

13件の回答

選択されたソリューション

I recognize that this is an old question. Horizontal lines are almost exclusively caused by failed Gate drivers on the panel. They are part of the panel and can not easily replaced (requires special equipment). You can always check the small ribbon cables that connect from the driver board (part of the panel) to the LCD panel itself. Those flat ribbon cables are bonded to the panel. Push on the ribbon cable that corresponds to the location of the line. If that line changes or disappears it is a failed bond. Should the line be unchanged it is the actual gate driver for that region which has failed. this is not a board failure, but a panel issue.

このアンサーは役に立ちましたか?

スコア 10

コメント:

Hello there! I had the same issue with my Sony Bravia Tv and I found a solution on my tv manual. Check your tv coax cable and remove it. If that resolved the issue meaning you need to change coax. If your coax is rated 300 ohm, used 75 ohm instead. So far, i dont get the line anymore!

さんによる

I have the same problem with my 46 inch LG . At first it was one line 3 inches from bottom then another line one inch above. My LG is about 5 yrs old

さんによる

コメントを追加

One thing you might want to try is give the TV a few wacks on the back. Just lightly hit the Tv a few times on the back all around, and see if that fixes your issue. if it happens to, or when doing it you see the lines go away but come back right after you hit it, it could be a loose connection, If it doesnt, report back and we will explore other options.

But sometimes hitting it actually works!

このアンサーは役に立ちましたか?

スコア 2

コメント:

Hey Cameron, Thanks for your reply. I have whacked and bashed but held back from kicking ... so far anyway. Nothing seems to change - the lines are very persistent little buggers.

さんによる

Hmm. That's kinda strange. You could try just taking it apart, and unplugging and plugging back in all connectors and cables. But before that, do you still have a warranty? Because if you do, you should just use that to replace the tv, If not then just do what I said. If it doesn't work, it probably means your TV is dead and you need to get a new one.

さんによる

Hello there! I had the same issue with my Sony Bravia Tv and I found a solution on my tv manual. Check your tv coax cable and remove it. If that resolved the issue meaning you need to change coax. If your coax is rated 300 ohm, used 75 ohm instead. So far, i dont get the line anymore!

さんによる

what is coax

さんによる

I've not just got lines I've a complete grid !!!!!!!!!!!!

さんによる

2件以上のコメントを表示

コメントを追加

I was told many things it could be the panel or t con boards so I did some more research and it always led to same thing so a local guy who repairs tvs told me before paying for parts or anything like that take the back off and disconnect all the connections wait a few minutes put them back on and my tv works again.. my problem was when I would turn my tv on after a few minutes the screen would jump around with horizontal lines then go away and come back after a few more minutes, what can cause that is loose cables inside the flatscreen itself or even dust that builds up can interfere with the picture I highly recommend you trying this before paying to have it repaired with new parts or throwing it out as my tv is bran new 60 inch flatscreen RCA it may seem like alot to do and technical but I'm not a technology person it just takes 15 minutes out of your time to take screws out disconnect cables put them back on and put the back cover back on and from doing that my tv is back to normal

このアンサーは役に立ちましたか?

スコア 2

コメント:

I have a Sharpe 55in flat screen tv it has about 4in of pink red blue horizonal line on bottom of screen. Can it be fixed or is it time for new tv.

さんによる

@briankoleszar I did the same with my LG 42” and it’s working well model number is 42LS3400 just unplug and clean dust and there were removed tapes which hold the cable ribbons to the screeen, which I managed to stick it back again with new tapes to avoid shacking worth a try

さんによる

コメントを追加

I’m really sorry, the TV repair guy gave me the run around but blamed tab failure. When he gave me the TV back after 3 months it didn’t even turn on so I dropped it off at the local recycle centre and bought a new TV.

このアンサーは役に立ちましたか?

スコア 2

コメント:

Ihave the same problem with my TCL tv.I will eventually dump it since i cant fix it.

さんによる

same problem , but just unplugged and replugged all connections and colored lines are now gone

さんによる

コメントを追加

Very helpful. Obviously this evidence of planned obsolescence. I’m thinking that they probably used glue, that was meant to fail in a couple of years. I had purchased a Sony Amplifier in the the early 90’s, and it failed about 20 years later. Well I purchased another one, and it barely lasted 5 years. The salesmen recommended a Yamaha Amp, and I should have taken his advice. I’m never going to buy anything from Sony again.

このアンサーは役に立ちましたか?

スコア 1

コメント:

Same case Sony Bravia 80D failed within one year .... Sony fixed the the TV first time around luckily the entire back panel free of cost. But the same problem returns back after 2 years. Net net the products are not worth 3 times the price ...so this time around I am going for something cheaper when anyways all brands seem to fail in a few years... in short CRT models were meant to last a few decades, LCD's were robust, and the latest and greatest LEDs 4K and the best last only for a few years ...and companies who make them cannot repair them or have any clue how to support them...

さんによる

コメントを追加

Hello there! I had the same issue with my Sony Bravia Tv and I found a solution on my tv manual. Check your tv coax cable and remove it. If that resolved the issue meaning you need to change coax. If your coax is rated 300 ohm, used 75 ohm instead. So far, i dont get the line anymore!

このアンサーは役に立ちましたか?

スコア 0
コメントを追加

My Tv is a Chinese brand and the line appeared after 3 months. The problem is I move the Tv everyday from room to room so something came loose. I connected the ribbon connector firmly and the lines disappeared but once I reassembled they appeared again. I turned the TV upside down and the lines disappeared. This tells me that the ribbon itself is no longer secured. I tried using electrical tape it didn’t work only made it worse.

このアンサーは役に立ちましたか?

スコア 0
コメントを追加

I have a horizontal lines on my LG 55. It started a few days ago and now it's of great concern because it hitting wider too. I'm going to try some of the things mentioned here. I hope it's dust or something simple that I can clean myself. I like the TV but this is the second major issue it's having. The first one was the WiFi card, which I managed to buy on eBay and replace myself. I was reading and found that it could also be software related. An option is to reset the TV back to original factory settings. What say you guys ?

このアンサーは役に立ちましたか?

スコア 0
コメントを追加

Hi my LG 50inch has a faint green line down the middle it comes and goes what could it be

このアンサーは役に立ちましたか?

スコア 0
コメントを追加

I had fine horizontal lines and grainy screen with shadowing on my 55” LG LED TV. It was about 10 years old. Took t-con board and data board out of TV and preheated my oven to 210 degrees Celsius, baked them for 10 minutes exactly on a pizza tray. Put TV back together. Working like new again. Vic H.

このアンサーは役に立ちましたか?

スコア 0
コメントを追加

I’ve fixed my tv. The problem was the ribbon cable which goes to the panel was getting short circuit. Had to replace the two cables from the panel. This is not a DYI project. I had a technician who did the repair. Hope it’ll help.

このアンサーは役に立ちましたか?

スコア 0
コメントを追加

I had a vertical blinds/lines also on my tv, I just bought it yesterday. When I plug it,it works for just 1 minute and here comes the pink &white lines , can somebody tell me what I'm suppose to do. Thank you

このアンサーは役に立ちましたか?

スコア 0

コメント:

Take it back.

さんによる

コメントを追加

Return it immediately!!!

このアンサーは役に立ちましたか?

スコア 0
コメントを追加

回答を追加する

Griff さん、ありがとうございました!
統計データを表示:

過去 24時間: 382

過去 7 日: 2,853

過去 30 日: 12,288

今までの合計 447,914