Question about HP Compaq Presario C304NR Notebook

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My screen has a lot of lines and most of the time won't work

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When booting go into safe mode and see it this works, if it does then there is a prob with you graphics card

Posted on Apr 23, 2010

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Posted on Jan 02, 2017

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Eonon D5173 It was rebooting and shutting down a lot of times then no power Please help


Hi Alan, The link below is a youtube video showing you how to fix your tablet, There's video's down the right side you can check out as well....CHEERS..
https://www.youtube.com/watch?v=0PAB6khykWE
How To fix any Android Phone Tablet that won turn on

Apr 24, 2016 | Tablets & eReaders

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I have horizontal lines across screen have to turn on couple times til it comes on voice will work but screen not on turn off on then pic an sound with lines across screen


Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
Type in this key phrase " my service table today " in the search box at the top right of the display window of the home page, to get gathered some pages which has the details of practical experiences to the author of that site.

Jan 01, 2016 | Televison & Video

1 Answer

Vizio TV won't work. We get sound but picture is like distorted and now it won't show video


There are lots of common problems with flat screens that result in those symptoms. Some fixes are super easy and cost $.35 haha and others can cost hundreds not to mention if your doing it your self or not factor in labor. Lots of people sell tv s like that from $50 to $100 bucks and they sell quick! Hell I'd buy it if I had the chance. Could use parts or god forbid find an easy solution ( rare :( )

Mar 13, 2013 | Televison & Video

1 Answer

My screen suddenly shows blue and pink vertical lines


Sounds like the gel has dribbled down into the workings and has effected the circuitry. Time for a new monitor. More importantly, why the heck were you using a liquid/gel sanitiser on electrical equipment. Use dedicated screen wipes

Sep 27, 2017 | Computers & Internet

1 Answer

Won't turn on


You may have hard drive issues or corrupted window files, remove hardware and reseat it back in position, sometimes this will correct the problem, next sub out the memory one at a time, causes a lot of strange symptoms. If none of these works, use the recovery disc "if you made one" The final option is a computer store to resolve the issues.

Mar 05, 2012 | Dell Inspiron 1545 Notebook

1 Answer

I have a Sylvania TV, Model #SRT2232S that won't turn on but havee clicking sound in back


Hello
The LOT [Line Output Transformer] of your TV. It should be replace with same type and number. Actually this is a skilled work. You have to unsoder this component out from the circuit board, and to resolder the new one in place. Have to adjust the perfect screen and focus voltage. Screen and focus voltage controls can be seen on it. This component can be bought from most of the electronic spare part shops at your tow. The number printed on it is important and should be noted. The sample picture of that component is attached here. This component also known as Flyback transformer. OK.

10_3_2011_4_21_43_am.jpg

Oct 01, 2011 | Sylvania SRT2232S 32" TV

1 Answer

Hi, I have a Dell Precision M90. It has worked great until now. The problem started when I walked away while it was turned on. It was not on my docking station. When I came back a while later the screen...


these problem called garbaig problem

first of all plug out your pc ram and rub its golden area from a rubber
if the problem is still then replace it with the new one.

if problem not solved yet its mean your ram is ok and problem is in AGP now you have to change your agp. ok

Jul 18, 2011 | Dell Precision M90 Notebook

1 Answer

The toolbar is not working seems like the bottom part of the screen are not working. the screen also has lines.


try screen calibration. you can find it in prefs. the lines may be because your device fell or experienced some kind of shock. if screen calibration still won't work try downloading powerdigi (it's not free though, you can try first the demo) it calibrates screen almost perfectly! :)
Try cleaning the sides of the screen using cloth or thin paper to remove dust. accumulated dust may cause the lines. if not, ask for repair centers though it is very costly.

Jan 23, 2011 | Palm TX Handheld

1 Answer

There's a picture on the screen, but it has lines all across it.Sometimes it will be clear, but most of the time it has lines. I also have directv, but they've installed a new box. Is this my television...


Hello
If the lines are there, and are across the screen at about an inch apart the whole screen from top to bottom, it is due to a slight increase in your TVs screen votage. It can be adjusted.
Open the back cover of your TV. There is an LOT [Line Output Transformer], can be seen directly soldered to the printed circuit boar of your TV. It is the largest component inside your TV, which have usually three wires emerging from it, and one thhick wire goes to the final anode of the picture tube, and will seem to be sticked to the top of the picture tube with the help of a rubber ******. Other two wires goes to the base card of the picture tube, a circuit board.
The said [LOT] has two controls integrated on it facing you as you open the TV. Among the top one is focus control, and the bottom one is screen control. Both of them are variable resistors, help to adjust focus and screen voltages respectively.
As set powered on, keeping the brightness, contrast and colour controls to its minimum, turn the screen control a little bit counterclockwise [not more, a little bit] will eleiminate the lines on your TV screen.
Take every precautions we have to, when working with an electrical equipment. Keep children away from you while you are working on it. Never allow them even to come beside you. Keep an adult beside you as a precautionary measure. Ok.
Wish you all sucess.

Oct 24, 2010 | Sanyo HT28745 28" TV

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