Toshiba Satellite - Locks up when plugged in

[predator0357]

Re: Toshiba Satellite - Locks up when plugged in

I didnt even know that iron existed. It would take some practice to get the heat right. I use a K tip or large chisel tip. The rest depends on your soldering skill.
Check the resistance of the CPU between the (+) and (-) pads before you start. Then check it after you have fitted the new capacitors to be certain there is no short circuit caused by the soldering.

Hehheheheh but this iron is good.
I will post some pics B4 and after with the multimeter😃
Tnx 4 the help👍👌😃

[tempro]

Re: Toshiba Satellite - Locks up when plugged in

Will it not help if I try and put the motherboard in the oven ?

[tempro]

Re: Toshiba Satellite - Locks up when plugged in

For Toshiba l300 question

[tempro]

Re: Toshiba Satellite - Locks up when plugged in

Toshiba l300 motherboard: starts loading Windows, and immediately disconnect the laptop after 2 seconds starts again and so ad infinitum.
Whether the problem is a capacitor?

[Th3_uN1Qu3]

Re: Toshiba Satellite - Locks up when plugged in

Yes this problem is usually caused by the Tokin capacitor.

[tempro]

Re: Toshiba Satellite - Locks up when plugged in

When i bend the motherboard of the laptop it sometimes stops working ,or starts, or the video dissappers. Do you think i can try putting the motherboard in the oven for some time?

[Dimitrios]

Re: Toshiba Satellite - Locks up when plugged in

Hello guys!! Just opened a L300 with the same problems. Not working with power adapter. I immediately bought a new NEC/TOKIN but to my surprise when I tore up the laptop under the cpu was sitting a big like NEC/TOKIN capacitor named WR2R5122. Is that the same?

[rievax_60]

Re: Toshiba Satellite - Locks up when plugged in

It is 1200uf. You need to replace it with 4x 330uf low ESR capacitors like 2R5TPE330M9.
Read more of this thread.

[tempro]

Re: Toshiba Satellite - Locks up when plugged in

Will try to TANT D4 SMD 680uF 4V- 4TPE680MI x2. WR2R5122-This has nothing to do soldered.

[tempro]

Re: Toshiba Satellite - Locks up when plugged in

On 4v ESR-18. A good must be ordered once-4x 330uf low ESR capacitors like 2R5TPE330M9

[Dimitrios]

Re: Toshiba Satellite - Locks up when plugged in

So can it be replaced with my brand new NEC/Tokin capacitor that I have already available?

[rievax_60]

Re: Toshiba Satellite - Locks up when plugged in

You can try. It is lower in capacitance than the original so the computer might still be unstable. The NEC/Tokin capacitors deteriorate quickly and are difficult to solder without damaging it. Read more of this thread. There is a lot detail including the things to not do.

[goodpsusearch]

Re: Toshiba Satellite - Locks up when plugged in

I don't see why would anyone use Nec Tokin that is known to fail prematurely.

[Dimitrios]

Re: Toshiba Satellite - Locks up when plugged in

Tried to remove with preheater and hot air but the old cap literally went into pieces. Will try more bottom heat like reballing. It is a very tricky removal just like you said guys...

[atsio]

Re: Toshiba Satellite - Locks up when plugged in

The NEC/Tokin capacitors deteriorate quickly and are difficult to solder without damaging it. Read more of this thread. There is a lot detail including the things to not do.

None of the Tokins I replaced came back with a problem. It is very easy to remove and solder if you now how to do it. You are replacing a capacitor that was in service for at least seven years and probably had to cope with very high temperatures.

[rievax_60]

Re: Toshiba Satellite - Locks up when plugged in

The preferred way to remove it is by prying it off the PCB. It is a long thread. You need to read as much as you can before it is too late for the mainboard. Post #863 also links to some detailed photos.

[Dimitrios]

Re: Toshiba Satellite - Locks up when plugged in

None of the Tokins I replaced came back with a problem. It is very easy to remove and solder if you now how to do it. You are replacing a capacitor that was in service for at least seven years and probably had to cope with very high temperatures.

Thanks! Yes I took it apart easily after removing the top plastic. I put back my new NEC/TOKIN but I am reading ground on its pads. That is not normal I think Should I remove it and place it again??

[rievax_60]

Re: Toshiba Satellite - Locks up when plugged in

It can look like a short circuit with the CPU fitted. Remove the CPU and check again.

[Dimitrios]

Re: Toshiba Satellite - Locks up when plugged in

Hmm it was removed. Then I fitted same result...

[rievax_60]

Re: Toshiba Satellite - Locks up when plugged in

You could send us a photo although the problem would be tricky to spot. I have had no experience in soldering back an NEC/Token capacitor.