chip identifier - Electronic Circuits Projects Diagrams Free

spike47 · 3rd April 2009, 08:58 PM

Hi

I have located a chip on my lapop and I am trying to find the manufacturer , it is marked with a funny shaped f as if that is the company logo mark , does anyone have any idea as what the company could be .

cheers

blueroomelectronics · 3rd April 2009, 09:04 PM

Take a clear photo and post it.

spike47 · 3rd April 2009, 09:14 PM

Hi

thanks for your reply , it is not possible to take a photo of it , it is to small and it melted somewhat , I have had to read what was on it with quite a strong magnifier .
ps: the marks on it are P32AH and below this 66806 there was some other numbers on it but i can not read them .

cheers

cheers

bigkim100 · 3rd April 2009, 10:55 PM

Take your board to a pro for repair. Lets just say that you find a replacement for that burned chip...what do you do then???
Do you slap it in to replace the original...you know what'll happen????...it will burn out as well. Unless you fix the actual problem, anything you plug in will burn up, just like the original. As well, If you can actually see a melted chip on a Motherboard, there will probibly be a dozen other devices that have burned out...that cant be seem by the naked eye.
Motherboards are not considered for "Home Repair", and are difficult for even a pro to fix.

3v0 · 4th April 2009, 12:19 AM

I agree that the repair could be more difficult then repairing the chip. But I would be suprised to find a place doing anything other then a MB replacement in this case.
If so there is little to loose. It he is very lucky we may find some help regarding the problem on the web.

Does the chip have this logo. It is fairchild

bigkim100 · 4th April 2009, 04:30 AM

Your reply doesnt make sense. I chip doesnt usually just commit suicide, and burns up, so there is another fault o the board.
He does have something to lose, he could bugger up his board doing a self-repair, or take it to a pro, and get it properly fixed. I dont think we do anyone a service giving someone with little or no experience just enough info to kill off a expensive piece of equipment, that could be prroperly repaired by someone with proper desoldering/soldering equipment, and the knowledge to find the real problem

kchriste · 4th April 2009, 04:51 AM

It is unlikely you'll be able to repair it by just replacing that chip. But here is a list of logos to help you out:
Manufacturers of ICs and their logos

tcmtech · 4th April 2009, 05:03 AM

When a chip goes out on a almost any electrical circuit it comicazies. That is, it does not usualy die alone it takes as many other IC's and components as it can along with it.
If it was part of a switching circuit or a regulator circuit it most likely took a pile of other components with it. If it was a logic IC or a sub processor it took everything that its working with down with it!
Sorry but your MB is officialy junk! You can take our opinion for free or pay an expert to agree with us.
MB death is not cost effective to repair. Its just a sad part of life.

spike47 · 4th April 2009, 08:09 AM

Hi all

thanks for all your replies , I have desoldered and soldered a couple of tiny transistors on motherboards with success , it is off a dell c640 Laptop , the motherboard works fine off the battery , it is the charging and runing off the PSU that is the problem .

cheers

3v0 · 4th April 2009, 01:40 PM

A repair center will want to install a new MB. They know that it is their best road to profit.

We now know the problem is in the charging circuit. I am not saying he can fix if, but the chances have gotten better. If he can ID the chip the chips datsheet may give us/him a hint as to what the associated parts are and what it does.

Quote:

Originally Posted by bigkim100

Your reply doesnt make sense. I chip doesnt usually just commit suicide, and burns up, so there is another fault o the board.
He does have something to lose, he could bugger up his board doing a self-repair, or take it to a pro, and get it properly fixed. I dont think we do anyone a service giving someone with little or no experience just enough info to kill off a expensive piece of equipment, that could be prroperly repaired by someone with proper desoldering/soldering equipment, and the knowledge to find the real problem

KMoffett · 4th April 2009, 01:53 PM

This might help Semiconductor Logos A-G

Ken

spike47 · 4th April 2009, 04:12 PM

Hi guy's and gals

photo as rquested , I have removed the actual item but the one next to it is the same shape

3v0 · 4th April 2009, 05:10 PM

A picture of where the chip was is not very helpful.

forumlicker007 · 4th April 2009, 05:14 PM

Quote:

Originally Posted by 3v0

A picture of where the chip was is not very helpful.

3v0 you proved that you've got a nice humor sense!

kchriste · 7th April 2009, 12:11 AM

It looks more like it could be a FET rather than an IC. Is Q82, the same as Q83 which is the one you removed? Can you post a better closeup of the area and a picture of the device you removed?
It looks like the IC marked SZT01J05S is also damaged. It is hard to tell from the photo whether there is a speck of something or a small crater on that chip.

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3rd April 2009, 08:58 PM	#1
spike47	chip identifier Hi I have located a chip on my lapop and I am trying to find the manufacturer , it is marked with a funny shaped f as if that is the company logo mark , does anyone have any idea as what the company could be . cheers

3rd April 2009, 09:04 PM	#2
blueroomelectronics	Take a clear photo and post it. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com/

3rd April 2009, 09:14 PM	#3
spike47	Hi thanks for your reply , it is not possible to take a photo of it , it is to small and it melted somewhat , I have had to read what was on it with quite a strong magnifier . ps: the marks on it are P32AH and below this 66806 there was some other numbers on it but i can not read them . cheers cheers

3rd April 2009, 10:55 PM	#4
bigkim100	come on.... Take your board to a pro for repair. Lets just say that you find a replacement for that burned chip...what do you do then??? Do you slap it in to replace the original...you know what'll happen????...it will burn out as well. Unless you fix the actual problem, anything you plug in will burn up, just like the original. As well, If you can actually see a melted chip on a Motherboard, there will probibly be a dozen other devices that have burned out...that cant be seem by the naked eye. Motherboards are not considered for "Home Repair", and are difficult for even a pro to fix.

4th April 2009, 12:19 AM	#5
3v0	I agree that the repair could be more difficult then repairing the chip. But I would be suprised to find a place doing anything other then a MB replacement in this case. If so there is little to loose. It he is very lucky we may find some help regarding the problem on the web. Does the chip have this logo. It is fairchild __________________ Please post questions to the forums. PM's are for personal communication. BCHS/3v0's Tutorials Junebug USB PIC programmer kit., USB Bit Whacker, The 15 Minute Printed Circuit Board! (+drill time)

4th April 2009, 04:30 AM	#6
bigkim100	Your reply doesnt make sense. I chip doesnt usually just commit suicide, and burns up, so there is another fault o the board. He does have something to lose, he could bugger up his board doing a self-repair, or take it to a pro, and get it properly fixed. I dont think we do anyone a service giving someone with little or no experience just enough info to kill off a expensive piece of equipment, that could be prroperly repaired by someone with proper desoldering/soldering equipment, and the knowledge to find the real problem

4th April 2009, 04:51 AM	#7
kchriste	It is unlikely you'll be able to repair it by just replacing that chip. But here is a list of logos to help you out: Manufacturers of ICs and their logos __________________ Inside every little problem, is a big problem trying to get out.

4th April 2009, 05:03 AM	#8
tcmtech	When a chip goes out on a almost any electrical circuit it comicazies. That is, it does not usualy die alone it takes as many other IC's and components as it can along with it. If it was part of a switching circuit or a regulator circuit it most likely took a pile of other components with it. If it was a logic IC or a sub processor it took everything that its working with down with it! Sorry but your MB is officialy junk! You can take our opinion for free or pay an expert to agree with us. MB death is not cost effective to repair. Its just a sad part of life. __________________ "Issue a general safety warning. Then look the other way and allow stupidity the chance to eliminate itself." -- tcmtech "Those who can, Will. Those who can't, will achieve positions of power over those who can and then promptly stop them." -- tcmtech "Your impossibility may just be my day to day routine." -- tcmtech

4th April 2009, 08:09 AM	#9
spike47	Hi all thanks for all your replies , I have desoldered and soldered a couple of tiny transistors on motherboards with success , it is off a dell c640 Laptop , the motherboard works fine off the battery , it is the charging and runing off the PSU that is the problem . cheers

4th April 2009, 01:53 PM	#11
KMoffett	This might help Semiconductor Logos A-G Ken __________________ "To invent, you need a good imagination and a pile of junk." Thomas A. Edison (1847 - 1931)

4th April 2009, 04:12 PM	#12
spike47	Hi guy's and gals photo as rquested , I have removed the actual item but the one next to it is the same shape Attached Thumbnails Last edited by spike47; 4th April 2009 at 04:13 PM.

4th April 2009, 05:10 PM	#13
3v0	A picture of where the chip was is not very helpful. __________________ Please post questions to the forums. PM's are for personal communication. BCHS/3v0's Tutorials Junebug USB PIC programmer kit., USB Bit Whacker, The 15 Minute Printed Circuit Board! (+drill time)

7th April 2009, 12:11 AM	#15
kchriste	It looks more like it could be a FET rather than an IC. Is Q82, the same as Q83 which is the one you removed? Can you post a better closeup of the area and a picture of the device you removed? It looks like the IC marked SZT01J05S is also damaged. It is hard to tell from the photo whether there is a speck of something or a small crater on that chip. __________________ Inside every little problem, is a big problem trying to get out.