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Bad Inverter? Need advice, picture included

  • Cable
  • Laptops
Last response: in Laptop Tech Support
January 17, 2013 7:44:48 PM

Hello community,

I recently replaced an inverter cable on my Toshiba satellite p205 s6237 because when I opened my screen past 80 degrees, the screen went black, so I thought it had to be the inverter cable. However, after replacing the cable when I boot up, I see nothing but many purple and green lines on my screen.

I checked for any loose connections, released the static by removing the battery and holding down the power button for a minute. I have noticed when I moved the cable around the contrast of the lines change. I did connect it to an external monitor, so it can not be the video driver.

I even tried placing my old cable in, NOW with the OLD cable I see the same lines instead of a black screen, its just more dimmer.

could it be that I ordered a bad inverter cable, as i did order it from Ebay?

What do you think the problem may be?

here's a picture of my problem

More about : bad inverter advice picture included

a b D Laptop
January 19, 2013 2:13:45 AM

Something is definitely off. What was the brand of cable you bought and how much was it? If it was on the cheap side, I'd maybe think about spending a bit more and get a quality cable. Now, if you go with a better cable and keep getting the same results, I'd venture to guess that there maybe an issue with the inverter itself.
January 19, 2013 3:26:52 AM

Hey, thanks for the reply. The cable I bought was around $20 with shipping, and the cable was identical to my older one when comparing the number on the bar code.

After a bit more fidgeting around here is what I found.

With the old cable the screen is much darker, but when I bend this hold cable very harshly, I get a normally lit screen. With the newer cable, I get a normally lit white screen with many different colored lines.

I purposely disconnected the ribbon cable from the back of the LCD and got a plain white screen without the lines.

Next I disconnected the inverter and the screen got much darker, as if I was using the old cable, when I plugged it back in, much lighter.

Based on these factors, I believe that the cable is fully functioning, the inverter is in working order, based on the fact that the screen changed in lighting when I disconnected and reconnected it.

Because I get a plain white screen when I disconnect the LCD cable from the back of the screen, and a white screen with lines when I do connect the cable, I think I am going to conclude that the LCD screen went bad.

What do you think?
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a b D Laptop
January 19, 2013 5:20:43 PM

Very possible. Just about the only way to tell at this point would be to get your hands on a new LCD. The question though is how much do you want to put into the laptop before it becomes far from economical?

Best solution

a c 245 D Laptop
January 19, 2013 6:20:25 PM

Hi :) 

I own a laptop repair company...

Thats NEW SCREEN time...not cable.... (its almost NEVER the cable by the way)

Make sure you get a screen with the EXACT same numbers as on the white stickers on the back of YOUR NOT get a generic copy screen...

All the best Brett :) 
January 19, 2013 7:11:20 PM

Thank You,

You guys have been very helpful and I have learned much from you guys.
January 19, 2013 7:11:31 PM

Best answer selected by yetdooksi.