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X60 Fuselist

Posted: Thu Mar 18, 2010 5:47 pm
by Twisted Mind
IBM/Lenovo X60 Fuselist made by Twisted Mind + tcone:

In Numeric Order:

Fx: Type: Provider: Mark: Schurter Order Nr.: Values:
F1 FUSE-D5A32V-5-GP Littelfuse 467 Series Schurter USF 0603 F 3412.0113.xx 0.5A/32V
F2 FUSE-2A32V-6-GP Littelfuse 467 Series Schurter USF 0603 N 3412.0119.xx 2A/32V
F3 FUSE-3A32V-7-GP Littelfuse 467 Series Schurter USF 0603 P 3412.0121.xx 3A/32V
F4 FUSE-D5A32V-5-GP Littelfuse 467 Series Schurter USF 0603 F 3412.0113.xx 0.5A/32V
F5 FUSE-2A32V-6-GP Littelfuse 467 Series Schurter USF 0603 N 3412.0119.xx 2A/32V
F6 FUSE-1D5A6V-2 0.5A/6V
F7 FUSE-10A125V Littelfuse HF 451/453 Series LF10A? 10A/125V
F8 FUSE-10A125V Littelfuse HF 451/453 Series LF10A? 10A/125V
F9 SMD1812P075G G 0.75A/33V
F10 R451007 Littelfuse HF 451/453 Series 7A/125V
F11 FUSE-1A32V Littelfuse 467 Series Schurter USF 0603 H 3412.0115.xx 1A/32V
F12 FUSE-D5A32V-5GP Littelfuse 467 Series Schurter USF 0603 F 3412.0113.xx 0.5A/32V
F13 FUSE-D5A32V-5GP Littelfuse 467 Series Schurter USF 0603 F 3412.0113.xx 0.5A/32V
F14 FUSE-D5A32V-5GP Littelfuse 467 Series Schurter USF 0603 F 3412.0113.xx 0.5A/32V
F15 FUSE-1D5A6V-2 0.5A/6V

Sorted by Features:

LCD Inverter:
F3 FUSE-3A32V-7-GP
F4 FUSE-D5A32V-5-GP
F5 FUSE-2A32V-6-GP

GBE Magnetics:
F1 FUSE-D5A32V-5-GP

MDC Conn:
F15 FUSE-1D5A6V-2

Fingerprint:
F6 FUSE-1D5A6V-2

Keyboard Connector:
F11 FUSE-1A32V

Fan Control:
F2 FUSE-2A32V-6-GP

DC-In and Charger:
F10 R451007
F12 FUSE-D5A32V-5GP
F13 FUSE-D5A32V-5GP
F14 FUSE-D5A32V-5GP

Batterie:
F7 FUSE-10A125V
F8 FUSE-10A125V

EXT CRT Interface:
F9 SMD1812P075G

The list I have created from the circuit diagram in July 22'05. I make no claim to completeness and accuracy of the statements made here! :)

As you can see from the photos, linked below, of the system boards of tcone, here again the theory differs from the practice!

http://img8.abload.de/img/x60_fusesoupd.jpg

The fuses can be easily tested with a multimeter.
If the resistance is bigger than those I linked PDF is specified or infinitely large, the fuse is defective.
Solder a new fuse, if one does not have as much experience the best piggy back on the old fuse.
This prevents excessive thermal loads on the system boards when soldering!
And in any case, you should use solder with Lead. Lead-free solder is really stupid to ... ;)

I wish you much fun with it ... :lol:
Feedback and look forward to many successful repairs.

Klaus 8)

Re: X60 Fuselist

Posted: Fri Mar 19, 2010 1:16 am
by andykrej
Great work. I'm sure this will help out a lot of people.

Next time I have my X61s open, I'll check if it also applies to it.

Re: X60 Fuselist

Posted: Mon Mar 22, 2010 2:33 pm
by scrannel
Ok, don't mean to be a noob, but where can you buy these fuses?

Thanks

Re: X60 Fuselist

Posted: Mon Mar 22, 2010 3:37 pm
by rkawakami
Littelfuse (note the spelling) components can usually be sourced from mouser.com or digikey.com.

Re: X60 Fuselist

Posted: Mon Mar 22, 2010 3:53 pm
by scrannel

Re: X60 Fuselist

Posted: Mon Mar 22, 2010 4:13 pm
by rkawakami
PCHub only seems to be carrying 451 and 429 series fuses at the moment. Most of the ones that Twisted Mind references are of the 467 series.

edit: Also, PCHub ships out of Singapore ( http://www.pchub.com/uph/content/faq_quick.html ). Mouser ships out of Texas and I believe Digikey ships from Minnesota. All three appear to offer single-unit quantities on parts like this so it's very useful for DIY repairs.

Re: X60 Fuselist

Posted: Mon Mar 22, 2010 4:18 pm
by scrannel
You're right. I'm looking for the 451/453 series. Are these things insane to replace?

Re: X60 Fuselist

Posted: Mon Mar 22, 2010 4:28 pm
by rkawakami
Depends. As outlined in the first post to this thread, you can usually "piggyback" the new fuse on top of the old. That is to say, most of the surface mount fuses will have metal endcaps that wrap around to the top surface of the fuse. You can then place the new fuse on top and solder the ends together. That way you don't have to be bothered with extracting the old fuse and risk damaging the pads on the motherboard (or adjacent components). Use a fine-tipped soldering iron, around 25 watts or so, and use the thinnest solder you can find (0.5mm diameter works great).

Re: X60 Fuselist

Posted: Sun Oct 17, 2010 12:28 pm
by Cunha
I have to ask - how does one end up needing to replace a fuse?

Re: X60 Fuselist

Posted: Sun Oct 17, 2010 2:04 pm
by rkawakami
Through accident or component failure. The general rule is that when a fuse blows out you should first attempt to figure out why it blew. Otherwise any replacement fuse you install could also go "ppffft".

Accident could be something like fooling around with a powered up board and shorting out some pins. Or plugging in the wrong AC adapter. Or trying to put in an SXGA+ panel into a system that still has an XGA ribbon cable. Component failure is where a part simply gives out and starts consuming excessive power (current). However, one of Murphy's Laws states that any semiconductor component (i.e., a transistor or IC) which is safeguarded by a fuse will blow first, thus protecting the fuse :) .

Re: X60 Fuselist

Posted: Sun Oct 17, 2010 3:16 pm
by Cunha
Haha, I'm glad we can expect semiconductors to protect our fuses.

Thanks for the info.

Re: X60 Fuselist

Posted: Tue Nov 30, 2010 3:24 am
by laboye
Hi all. I can confirm that these fuses are identical to the ones in the X60s.

Thanks Twisted Mind, this was quite helpful!

Re: X60 Fuselist

Posted: Sat May 21, 2011 3:49 am
by teladoy
rkawakami wrote:Through accident or component failure. The general rule is that when a fuse blows out you should first attempt to figure out why it blew. Otherwise any replacement fuse you install could also go "ppffft".

Accident could be something like fooling around with a powered up board and shorting out some pins. Or plugging in the wrong AC adapter. Or trying to put in an SXGA+ panel into a system that still has an XGA ribbon cable. Component failure is where a part simply gives out and starts consuming excessive power (current). However, one of Murphy's Laws states that any semiconductor component (i.e., a transistor or IC) which is safeguarded by a fuse will blow first, thus protecting the fuse :) .
Hi I run into this topic by accident an I see "wrong AC adapter" I have done this on MacBook Pro actually plug a USB hub with the wrong adapter and pffffft... I always thought that there were fuses to blow to prevent mayor injurie but my knowledge is very limited and did not know how, but reading this I am thinking bac and I still have the MBP , would you think that maybe finding the fuses and replacing then it may be fix?

Re: X60 Fuselist

Posted: Wed Aug 17, 2011 9:01 pm
by antigen
Yikes :) Thanks for posting as it's nice to know... but I hope I never have to end up getting involved in such a situation. Would an aftermarket battery or a/c adapter (i.e. sold from amazon) run this risk? I was looking for a spare battery and a/c adapter from the x60 which is on its way....

Re: X60 Fuselist

Posted: Wed Aug 17, 2011 9:05 pm
by laboye
antigen wrote:Would an aftermarket battery or a/c adapter (i.e. sold from amazon) run this risk? I was looking for a spare battery and a/c adapter from the x60 which is on its way....
Not unless it's a bottom-of-the-barrel charger. The worst that usually happens with those is the power brick itself goes out. The batteries, however, I never bother with. Every ThinkPad aftermarket battery I've ever dealt with lost it's charge far too quickly to be worth it, though the 3rd party AC adapters are great if they're well-built. I use one myself at work.

Bottom line, you shouldn't have to worry about fuses blowing due to aftermarket adapters/batteries--just don't get something too cheap. :wink:

Re: X60 Fuselist

Posted: Sun Jan 29, 2017 9:45 pm
by dmdsoftware
When I was taking apart a X61s system today -- needed to change the thermal paste to the CPU, overheating --, when i took the fan off, I noticed burn marks on the fan. Noticed of the fuses/capacitors on the motherboard directly under the fan, and close to the edge of the board was burnt. There were three of them in a row, only 1 burnt. Not sure what role these play because the system is fully functional.