Comments on: Screen inverter replacement. Fixing laptop backlight problem.

By: cj2600

cj2600 — Thu, 11 Mar 2010 23:56:58 +0000

Ron,

I am looking to make a donation and I appreciate the assistance but where can I purchase the lights.

Do you mean the backligth? Search on eBay.

By: Ron

Ron — Thu, 11 Mar 2010 23:53:16 +0000

I am looking to make a donation and I appreciate the assistance but where can I purchase the lights.

By: moshu

moshu — Thu, 11 Mar 2010 10:12:14 +0000

Hi, I have a IBM T43 with XGA LCD. If I want to upgrade the LCD to have a SXGA I need also another inverter or I can use the one that I have? What about the LCD cable that is going to the motherboard, it need to be replaced also?.
Thanks

By: vsp

vsp — Sun, 07 Mar 2010 01:55:29 +0000

I have a toshiba satellite A200. When i start my laptop the screen goes grey right from the beginning. Then the sides slowly turn black. If i connect a monitor to it, then it works fine, i can see everything on the monitor,, but not on my laptop display. Can anyone suggest any solutions

By: cj2600

cj2600 — Thu, 04 Mar 2010 06:30:15 +0000

shane,

I have a Toshiba Satellite L305-S5908 laptop and the monitor went dark. Computer is still working fine, with the back of the screen off i can see everything fine in bright light. I replaced the Inverter, Light tube and LCD screen but still no fix. Anybody know what else i can check?

If you replaced the inverter board and LCD screen (with backlight) but the problem still exists, most likely this is the motherboard failure.
Also could be the video cable failure but it’s not common.

I assume that your new inverter and LCD are good.

By: shane

shane — Thu, 04 Mar 2010 01:31:33 +0000

I have a Toshiba Satellite L305-S5908 laptop and the monitor went dark. Computer is still working fine, with the back of the screen off i can see everything fine in bright light. I replaced the Inverter, Light tube and LCD screen but still no fix. Anybody know what else i can check? Thanks for your help

By: Ck828

Ck828 — Sun, 28 Feb 2010 23:15:58 +0000

cj2600,

I have already reseated the cable connection but couldn’t find the inverter that is why I thought it built into the motherboard.

Thank to your suggestion I will try to replace the LCD next, it is 13.3″ TFT, Unipac UB133X01 and I am not sure it is easy to find.

I appreciate very much for your insight helping me to narrow down the process!

By: cj2600

cj2600 — Fri, 26 Feb 2010 22:44:31 +0000

CK828,

my friend HP Omnibook 900 screen got all red but no picture in it, however the laptop is working OK with a external monitor. Please tell where should I check to correct the problem, thanks.

1. Bad connection between video cable and LCD/motherboard. Try reseating connections.
2. LCD screen failure (more likely).
3. Video cable failure (less likely).

Is the LCD inverter in this model built into the motherboard?

This is not related to inverter failure, that’s for sure.

By: Goran

Goran — Thu, 25 Feb 2010 22:39:51 +0000

For repaircom!
My inverter KUBNKM035A Compaq EvoN800V
Help
Thanks

By: Ck828

Ck828 — Wed, 24 Feb 2010 09:39:39 +0000

Hi,

my friend HP Omnibook 900 screen got all red but no picture in it, however the laptop is working OK with a external monitor. Please tell where should I check to correct the problem, thanks.

PS. Is the LCD inverter in this model built into the motherboard?