SMD fuses and fatigue

Friends of Bill and Bob will really relate.

I did not get enough sleep this weekend, (my own stupidity)so by the end of work yesterday I was incredibly exhausted.
Too exhausted to even eat dinner ......So I decided to instead work on a Toughbook with major electronic issues ......

So where is a good source for SMD motherboard fuses? Now I need about 6...

 

I have local store here in Germany some streets away , ok not helpful for u.

Or online...Their are a lot of possibilities. Maybe this one: SMD-Fuses at reichelt elektronik

But I recycle a lot of parts from non Toughbook computers

 

heh ...

H.A.L.T
:laugh:

do you have the schematic and/or the mA rating and physical size of the smd fuses needed ?

jameco and mouser electronics carry smd parts but the prices may be high in small quantities (not to mention the shipping costs) .
checking at cheesebay is a good idea .

 

No schematics for this one....I can read the amps from the fuse or motherboard. I hope...
Physical size, well I can look at them

I may be able to salvage fuses from old motherboards...I have a Hot air station....Hot air won't destroy the used fuse, will it?

Can I piggyback the new fuse without any issues? I figure I can, but at this point I better ask even the simple questions..


Yes, I thought it was a perfect example of HALT.......But I got too stupid before I read the HALT sign...

 

you can piggyback fuses as long as the original is "open" ...
i have done this in the past , looks kinda tacky but if one is in a hurry and does not make a habit of it , it is ok for Q&D .

i have removed fuses with a soldering iron ... on and off real fast .
those fuses are only good for so many thermal cycles ... as outlined in the data sheet on the devices at hand .
i have not had problems with "recycling" chip fuses .

perhaps the fuse is the same physical size as one in a (say) CF-30 ... this would provide a size reference .
elsewise , accurate measurements or a straight on picture with a mm scale rule will do .
these fuses , like their resistor and capacitor brethren come in specific physical sizes .
provide the numbers on the device , although the current rating may or may not be *coded* on the device .

what piece of equipment are you working on ?

 

I have dial calipers to get a more exact size......
Most Toughbook fuses state 1A or 2A on them.

It's a Toughbook that I have already invested more than I probably should, considering I seem to be making it worse...I should have just rolled up the money and smoked it. I would have gotten more for my investment..

I should walk away from it for a week or two I suppose. But as you and I know, I am way too compulsive/obsessive to ever do that.

 

fine business on the calipers ... they do not lie (provided they are calibrated to zero) .

yeah , i know what you mean about things going from bad to worse ...
it is like chewing on a tough piece of meat ... it just gets bigger .
or "yessir , he done engineered it right off the air ..." .
:laugh:

"I should walk away from it for a week or two I suppose. But as you and I know, I am way too compulsive/obsessive to ever do that."
/me pours out a bag of skittles on shawn's coffee table .
sometimes , the best thing to do is to walk away from *something* for a while ... there is no shame in that .
convincing ourselves of that point is not easy .

"I should have just rolled up the money and smoked it. I would have gotten more for my investment.."
what is the difference between a egg sandwich and a ham sandwich ?
with an egg sandwich , the chicken is involved ... with a ham sandwich , the pig is committed .
so what yer saying here is that you are a ham sandwich on the deal ?

anywho ...
i await the measurements to be posted .

 

I know myself well enough.. I am the ham.....I probably should be the chicken, but it ain't gonna happen.

At this point either I will fix the fuses or I will wait to find a new motherboard...I was hoping for a quick repair, but it's going to be a long term project now...My determination can take over my common sense....

I'll have to send you photos of my truck,,,It started off with me wanting a wood steering wheel...... My Ranger now looks so much like a Lincoln that I fool Ford dealers... :thumbsup:

Measurements will be posted. Hopefully I will wait until the weekend to even look at it...

Thank you very much Larry..:hi2:

 

Fair to assume this is the 53 you have? I will have a spare,but buggered LCD for one soon for experimental purposes if you want it. Non touch but still works.

Hey Larry,you desperado,how's things?

 

doin' ok here kerry ... hardly any snow and the temperature has been hanging around 32F ... it was -10F for a couple of days .

@ shawn :
yeah ... there are a few outfits that carry smd components available in small quantities .
a quick check at geasebay shows many sellers ... once you get past all those "led fuse lamps" .

what model is the unit ?
i may be able to get an idea of what is needed by exercising my google-fu .
if you are going to be experimenting it may be a good idea to get poly-fuses (if they will fit) :
poly fuses | eBay

 

Larry,
I will get back to you.
I am trying to stop and slow down for a day or two....My brain was in freight train mode....Not good...

 

weeelll ... i found a parts list but no real "chicken scratchin' pictures" .
the wannabe manual is here :
https://encrypted.google.com/url?sa...bXGPkHWHVylW0gTzPlArpzg&bvm=bv.81828268,d.cWc

the fuses are :
F 2, 7, 8, 9, 10, 11 : K5H202Z00005 FUSE, 2A, 32V
F 5 : K5H402Z00003 FUSE, 4A, 32V
F 1000 : K5H153A00001 FUSE, 15A, 65V
F 1001, 1002 : K5H123Y00001 FUSE, 12A, 65V

 

Kerry, yes, I'll take the LCD.

Larry, wrong model, BUT the idea to use a parts manual to list the fuses was a great help..Fuses are all still good..:thumbsup:

I had to completely remove the motherboard to find them...I have learned a lot already.....

 

OK,I should have it next week,will also send the led CF-52 back light. Stuff is piling up.

 

ok on the fuses ...
yeah , as long as the "base model" motherboard is the same , the parts list for certain components will usually jibe .
over the years i have come to realize that most of the time there are no changes made to fuse ratings .
there must be a reason that you suspected the fuse(s) of being TUITB ... to the point of removing the motherboard , what problems are you encountering ?

@ kerry :
so , yer mobile bone-pile is growing ... how long before the neighbors start getting ugly about it ?
:laugh:

 

Heck,the average age here is about 70+ so they think I'm the paperboy and ignore me.