Does anyone know about various types of soldering methods

[JElect]

Eye protection is the norm, hand protection is a personal choice. More for a manufacturing setting when your soldering with flux cored solder all day.

 

[midiman]

Thanks.

I,m want to be able to replace jacks.

What other components could I replace on a laptop?

 

[telectrix]

so, that's why i've been burning circuit boards. i've been using a plumber's blowtorch.

 

[JElect]

Try the electronics forum midiman, Welcome to the Electronics Forum on DutchForce.com..

 

[grantr37]

Thanks.

I,m want to be able to replace jacks.

What other components could I replace on a laptop?

Every and All components can be replaced, but then you can get into heated tweezers, microscope platforms, BGA machines, even circuit board x-ray inspection machines for multi layered boards (they go up to 42 layers- generally 5 layers in Laptops) and that can cost thousands, I have a friend who has the most amazing workshop and its the size of a small supermarket, every foot of it covered in machines just for this, they do Laptops, Radio equipment for planes, Touch screen Cash registers (MICROS TILLS) that run on a modified PC hardware platform...etc..


You can easily replace : Bios Chips, Memory Batteries, Thermistor (cooling sensor) casettes, RAM chip cards (DIMM/SIMM/SODIMM) the cooling fans on the processor and Hard drive enclosures, the Processor itself and the DC Jack..
You can also change out a LAN card and a WLAN (wireless card) in under a minute....
as well as the software and drivers that you can reload..
Changing a screen takes about 20 minutes unless it has loads of glue on it in which case its a pain...
Keyboards- you can pop them out with a thin screwdriver or a thin blunt knife like a butter knife, you need to do it on the clips though or you will break it, the clips are easily visible on most Laptops around the outside of the keyboard, and its one thin celluloid plastic ribbon connector going into one IDC clip...

Watch out for sneaky hidden screws under labels/stickers etc...

 

[midiman]

Every and All components can be replaced, but then you can get into heated tweezers, microscope platforms, BGA machines, even circuit board x-ray inspection machines for multi layered boards (they go up to 42 layers- generally 5 layers in Laptops) and that can cost thousands, I have a friend who has the most amazing workshop and its the size of a small supermarket, every foot of it covered in machines just for this, they do Laptops, Radio equipment for planes, Touch screen Cash registers (MICROS TILLS) that run on a modified PC hardware platform...etc..


You can easily replace : Bios Chips, Memory Batteries, Thermistor (cooling sensor) casettes, RAM chip cards (DIMM/SIMM/SODIMM) the cooling fans on the processor and Hard drive enclosures, the Processor itself and the DC Jack..
You can also change out a LAN card and a WLAN (wireless card) in under a minute....
as well as the software and drivers that you can reload..
Changing a screen takes about 20 minutes unless it has loads of glue on it in which case its a pain...
Keyboards- you can pop them out with a thin screwdriver or a thin blunt knife like a butter knife, you need to do it on the clips though or you will break it, the clips are easily visible on most Laptops around the outside of the keyboard, and its one thin celluloid plastic ribbon connector going into one IDC clip...

Watch out for sneaky hidden screws under labels/stickers etc...

I can do most job likes replacement. But it's things like jacks and soldering that I have a problem with. So i,m trying to learn.

I know of a company that can do the bga work for me on graphics chips.

But as there are so many things that can go wrong on a motherboard. I was wondering is there is a way to test them and narrow down the problem to a component.

We replace the boards if they are dead but I also know Dell send them to India for repair. Out there the bad caps get replaced and they then come back as refurbs.

I would like to be able to know how to find dead parts and replace them instead of just giving my customer a new motherboard.

Or is it cheaper to get a new motherboard than waste my time trying to track down an electrical fault?

Most replacement boards cost around £80 and come with a 90 warranty.

Thanks

 

[grantr37]

The workshops that do the motherboards have a specially built test machine (known as a ball tester or a test rig) that the motherboard sits on, this is different for each model of motherboard and is the same one that they have in the factories that make them (usually in the far east) and it runs through a sequence of tests and finds the fault in under a minute...would cost about 30,000 pounds to get one made, then you would have to load it with a specially made software package...so only any good for the actual warranty departments of the Manufacturer...

 

[midiman]

The workshops that do the motherboards have a specially built test machine (known as a ball tester or a test rig) that the motherboard sits on, this is different for each model of motherboard and is the same one that they have in the factories that make them (usually in the far east) and it runs through a sequence of tests and finds the fault in under a minute...would cost about 30,000 pounds to get one made, then you would have to load it with a specially made software package...so only any good for the actual warranty departments of the Manufacturer...

Thanks I know what you mean.

I have found a company that do laptop repair training the UK. Please see here Laptop Repair Training Course, Hampshire, UK

And then there are places like this that fix to level 5. LAPTOP REPAIR CENTRE, LAPTOP MOTHERBOARD REPAIR, NOTEBOOK COMPUTER REPAIR, UK LAPTOP REPAIRS - SERVICES

What I want to be able to do is fix to level 3 if possible. It wouldnt be practical for me to buy BGA tooling like you say.