Haha, it's easy. You just have to work for the company that builds them

I have the files for all kinds of gear. Basically anything and everything you'd plug into a PC, I have schematics and layout files for.

Like was said, they are proprietary, and I cannot share them. Sorry!

 

Was that not the point he had about the schematics being given out for normal people to learn from?

 

Well, I think that if properly motivated, the average person could find schematics/layout files for various boards. It would take some effort, but it could be done.

My whole reason for even bringing it up was because Hero had asked why anyone would even want the schematics. I'm telling him (and the rest of you) why it would be useful to have the schematics. You learn an awful lot of practical knowledge about real circuit implementations by looking at them. Way more than you'd learn in a text book.

 

sheesh...

Is it just me or is this getting rediculous?

 

Then why brag about them?

Well said.

__________________
There is no "I" in "team", unless Apple makes it... Then it would be iTeam.

 

If you can get your hands on schematics, I need to know what IC is at Q24 on a PowerColor Radeon 9550 256mb non-DV(s). It blew, and I need another one.

 

Q24 denotes a MOSFET - are there any markings left on the part or did the top blow off?

 

I'm not bragging. Hero initially asked why anyone would want motherboard schematics, and I was answering his question.

 

Like OutToLunch said, Q24 is some type of FET. I don't have that particular card, but you should look and see if you can tell what IC (if any) that Q24 is connected to. I'd guess that it's part of the power supply circuitry, and you can probably look at the datasheet for whatever IC it's connected to to tell what the characteristics would be for a replacement.

 

oh, ok.

__________________
There is no "I" in "team", unless Apple makes it... Then it would be iTeam.

 

To help support his claim, he's posting from a major manufacturers IP address, so I've got no doubts as to the validity of his claim (or the fact he's not allowed to distribute them).

__________________
PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk

 

Yes, i belive him.

__________________
There is no "I" in "team", unless Apple makes it... Then it would be iTeam.

 

If I knew what the part was, I wouldnt have to ask When it blew (psu blew, took out the video card, and motherboard - fixed the mobo by repairing a trace) it put a little hole in the FET. Just enough so that I cant read what it is. Its an SO-8 if it matters. Ill do some checking with a magnifying glass later.

 

I will go ahead and just assume that this is a MOSFET for a buck switching power supply. So, in SO8, it will either be a single FET or dual packaged. Remove the FET from the board and look at the pin pads. If the pads for pins 5 through 8 are shorted together and also the pads for pins 1 through 3 are shorted, then it is a single FET. Otherwise, pins 7 and 8 will be shorted and Pins 5 and 6 will be shorted for a dual packaged FET.

I highly doubt that the FET would be a P-Channel, so that narrows things down as well.

If the FET is a single, then find it's mate - it is very likely that the regulator is a synchronous buck and not standard. It is also highly likely that the blown FET will be from the same manufacturer as it's mate. I can't say that it will be the same FET though - the control FET is many times different than the synch FET.

I would also trace back the gate signals to find the PWM controller IC. That will tell alot about what the supply is.

 

Its a single FET. Its pair is right beside it, and is marked 119N3S. That one is also a single. The only IC near it is U41 and is marked 1575 PNFE.