Toshiba Tecra 8100. How to remove and replace FL inverter board.
Use Toshiba Tecra 8100 display disassembly guide to remove and replace the FL inverter board. If the backlight on your computer suddenly stopped working but you still can see a faint image, then most likely the problem is caused by a failed FL inverter board. Before you jump in and start buying hardware make sure to read through laptop video problem tips. Be very careful with the LCD screen mask. The plastic is very fragile and can be easily broken. Use only your finger when you remove the LCD mask. Do not use a screwdriver or any other sharp object because you can damage the screen.
You can use the same FL inverter board for 13″ screen and 14″ screen. Toshiba part number for the FL inverter: P000272240
Need spare parts for your laptop? Search here by the laptop model and part name or number.
January 4th, 2009 at 9:40 pm
Hi!i dont know computer well, but i have a problem. I have Toshiba Tecra 8100. Does anyone now where is position of battery and CMOS in Toshiba Tecra 8100?thx
November 9th, 2008 at 10:02 am
I fixed the memory problem on my Tecra 8100 it was 6 pins in slot B that solder had come loose 3 pins on both of the outside.
Other problem is AC power. I have to put pressure on the cord for AC power to work. I resoldered but no success. I may try again later.
As for your screen going blank, I’m not to sure. Usually it’s the inverter board other times its the lights. I’m trying to fix an LCD monitor thrown out at work and the invertor section of the board is gone. Couple of diodes blown and some failing capacitors and transistors. I know which ones, all I need is to find the time and the parts to do it. Best of luck! I’ll see if I can come up with something.
September 14th, 2008 at 8:46 pm
Thank you for your help I love this site. I think I need too buy a new inverter. where can i buy it.?
Earl
July 8th, 2008 at 12:48 pm
This has been very helpful, I also have a tecra 8100 which is exhibiting similar screen problems, only the screen is premanently black, I can however see a faint outline in the right light when I turn it on.
I have tried replacing the inverter board, but this has not worked. Can you advise what else may be the cause of this problem?
Grateful for any tips
May 20th, 2008 at 4:41 pm
Actually I found this, thanks for the help on your page. http://gopaultech.com/wp-content/images/Tecra%208100%20Disassembly.pdf
May 20th, 2008 at 4:06 pm
One was thrown out at work and I grabbed it.
It works somewhat, but I think it was dropped. Sometimes it freezes up during startup then goes to blue screen and says stop: 0×0000007f then the rest 0x… are zeros (which means hardware failure somewhere). Anyways I loaded knoppix (live CD) and ran the memtest right from prompt and it seems to run fine until I push near/around the top left of the keyboard (I think right above the processor) and then the memtest starts continuously listing off errors as it runs the test until I push in that area again, but it’s intermittant and mostly gives errors. Couple of times I did manage to get knoppix fully loaded but as soon as I tapped that left corner the screen blanked and it froze up.
Anyways, how do I take it apart so I can look to see if the processor is seated properly. I can’t seem to crack the cases in half. I’ve removed screws, hd, battery, modem, dvd drive as shown in the toshiba 8100 field service manual but it doesn’t give any direction on how to split the two halves to, say, change a processor. I’m kinda stuck.
Any hints or tips would be greatly appreciated. Maybe the best tip is to just get rid of it but I would hope someone would have some type of skill to help me out.
Again, greatly appreciated if anyone could.
May 5th, 2008 at 11:53 pm
I have a problem with my Tecra 8200 where the AC adaptor LED (left most LED) is flashing amber. I suspect a problem with the internal PSU but I cannot get access to it. Does anyone know how I could dismantle this machine further to gain access to this?
Thanks very much in advance,
Peter
April 30th, 2008 at 7:51 am
Mike C,
First of all thank you for your generous donation to http://www.irisvista.com
Now regarding your problem.
There is no simple answer but I would definitely run diagnostic tests on memory and hard drive.
For testing memory you can use Memtest86+.
For testing the hard drive you can use Hitachi’s drive fitness test.
I linked to both utilities in “Useful Links” on the right side of the website.
Also, make sure you have the latest BIOS installed. Update the BIOS if needed.
April 30th, 2008 at 7:17 am
Excellent instruction and guidance – thanks! Your info quickly solved 2 frustrating problems with my wife’s Tecra 8100 (intermittent LCD backlight and a loose lid), thereby postponing the cost of a replacement and restoring marital harmony!
But 1 issue remains. When returning from standby, a “resume failure” error frequently (but not always) occurs, forcing a system reboot. Any ideas of what’s going on here? Marginal RAM maybe? BTW, battery condition is fine. I ended up disabling standby and forcing hibernation instead, but it’s not ideal.
Any help would be much appreciated!
Cheers,
Mike C.
April 24th, 2008 at 8:08 pm
I bought a Tecra 8100 with the same problem: screen turned faint frequently after 5 min. However, I did not change the inverter. From a web, I got an information that you just need to pull out and plug in the power connector to the inverter for five times. It is quite unbelievable but I tried and it worked like a charm. Five months have passed the computer has worked perfectly.
December 30th, 2007 at 5:00 pm
Thanks for the instructions. They were very useful!
Two other things that inexperienced DIY-ers might want to know:
1) Note the tabs that hold the screen mask in place. (Can sort of see these on the “remove screen mask” photo.) Pushing or prying in these areas with a thumbnail can help pop the screen mask off. (From the outside, not the screen side!)
2) Note places where wires, etc. can cover tabs when re-installing inverter. Carefully tuck the inverter back in underneath its plastic cover.
Our inverter had been replaced before without attention to these tabs, making it difficult to get the screen mask off again without damaging it. There are pinch points near the hinges, specifically.
Has anyone succeeded in improving the cooling? One comment suggested drilling holes or cleaning things… did it work?
Thanks,
Erica
November 30th, 2007 at 10:35 am
Thank you. I have successfully replaced the FL inverter board by following your instructions. However, something odd is happening: the new board fails (the backlighting switches off repeatedly, as before) if I put the screen mask back on. I have checked the old inverter, which fails either with the mask on or off.
I think this must be a matter of temperature or pressure exerted by the mask on the board, but this didn’t happen before. Any suggestions?
September 30th, 2007 at 12:55 pm
Back in post #10, cj2600 gave info and part #’s for hinge problems on the Tecra 8100. I’m having those same issues with my Tecra 8000 (14″ screen). Any part #’s, advice on fixing, and so on would be much appreciated!
September 17th, 2007 at 9:34 pm
max,
I guess that’s why you cannot find it.
Just Google for P000272240. Note the all “O” in the part number are actually “0″ (zeros).
September 17th, 2007 at 9:12 pm
max, where did you order part no. POOO272240?
September 8th, 2007 at 7:08 am
Excellent website. I have a Toshiba Tecra 8100 with the same problem. The screen was going very faint very frequently, after a while even pressing the pin when the lid closes it wouldn’t come back…
I ordered the part POOO272240, installed it and now it seems to work fine.
Thanks a lot,
Max
August 15th, 2007 at 4:47 am
MY LAPTOP TECRA 8100 THE VIDEO IMAGE VERY FAINT HOW MUCH IS THE FL INVERTER PART NO POOO272240 I HAVE LEARNT ABOUT THIS THROUGH THIS FORUM I TRIED TO OPEN TRYING TO SEE IF THERE IS A BULB INSIDE I COULD NOT SEE IT COZ IT IS SEALED WHEN TRIED TO PUT BACK NO FAINT IMAGE WHICH WAS THERE BEFORE PLEASE HELP WHAT COULD BE A FAULT AGAIN
April 25th, 2007 at 12:18 am
Hi! This is a great site. I used your guide from the 8200 to begin dismantling my 8100. Thanx.
I have trouble finding info on my problem: could you push me in the right direction?
I replaced my 5gb hd to a 40gb hd (temporarily without screws) and all worked well (I cloned it). But I pulled out the drive (actually when it was still shutting down, possibly) and reinstalled it with screws. Now, no boot…no screen, no post, not even a fan spins. The hd lite comes on for a few seconds, barely active (red & green?), then amber lite.
This sounds textbook mistake…but what is broken? MB? Reset MB?
any help is welcomed. Thanx.
April 19th, 2007 at 1:09 pm
Thank you. Fl inverter tube was removed, sprayed with anti oxidant spray, then re connected. Works wonderfully! Thank you!
I would like to note there is alot of heat from the Fl inverter and would like to make vent holes and possibly add a heat sink for as a DIY project.
I also plan to clean dust, dissasemble, and upgrade cooling.
More information would be great.
-steve