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Chip level repairing

I want to learn how to repair motherboards on component level finding it deffcult to how do i get into it now i did repairing 20 years ago the coponents have changed printed circutes

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It's virtually impossible to repair motherboards nowadays. Even if you could identify the component, they are typically proprietary and impossible to remove without sophisticated, extraordinarily expensive equipment. Even manufacturers don't repair them. You can usually buy a new one for under $100. It just ain't worth the effort.

Suggest you learn how to fix TV sets, stereos, and other consumer electronics. At least someone will pay you to do it if you're any good at all.

Posted on Dec 27, 2008

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Posted on Jan 02, 2017

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Is there someone out there who can repair older ATTO cards

These devices contain surface mount components that require a reflow station to remove / affix.

You may be able to contact a company that works on pcb's to repair it, however if the product is at end of life, the chips used may no longer be available, and if any of the chips have custom programming from the factory, these chips will not be fixable.

You may need to look into a new replacement card. ATTO is still in business and can probably offer you a comparable replacement.

Sep 18, 2014 | Computers & Internet


Repairing the ATX power supply unit

<br />if you have some knowledge about electronic component, about multimeter; you can easily learn to repair the ATX PSU. here you find a simple presentation that allow you to understand the role main components with a photos.<br /><b><u>Presentation 1:</u></b><br /><br /><img src="mabroukmedal_5.JPG" /><br /><b><u>Presentation 2:</u></b><br /><b></b> <br /><br /><img src="mabroukmedal_6.JPG" /><br /><b><u>presentation 3:</u></b><br /><b></b> <br /><br /><img src="mabroukmedal_7.JPG" /><br /><b><u>here you find the schematic diagram:</u></b><br /><b></b> <br /><br /><br /><img src="mabroukmedal.GIF" /><br />the component side :<br /><br /><img src="mabroukmedal_0.GIF" /><br /><br /><img src="mabroukmedal_8.JPG" /><br /><b><u>the solder side:</u></b><br /><br /><img src="mabroukmedal_1.GIF" /><br /><b><u>Step 1:</u></b><br /><br /><img src="mabroukmedal_9.JPG" /><br /><br /><b><u>Step 2:</u></b><br /><br /><img src="mabroukmedal_11.JPG" /><br /><b><u>Step 3:</u></b><br /><b></b> <br /><b></b> <br /><br /><img src="mabroukmedal_12.JPG" />

on Nov 05, 2010 | Computers & Internet


Solving Problem With Motherboard Manual

So many people ask here about:
  • How can the connect the Front Panel Leads?
  • How can they Attach the Components on Board?
  • Where to attache a certain Lead?
  • What Properties do their PC have? etc
These questions are because that they dont know all these details are in the Motherboard's Manual (User Manual or Manual). they can fix a littlle problems like that while they see the manual. some people lose their manual and then dont know which model do they have and then stuck there.

here is the solution. There is a software called CPUZ or CPU-ID (Search in google) by which they can identify and learn more then enough about their PC, they can find the specific model of the Motherboard and can download the manuals from the manufacturer site or the search in Google.

So by this little Tip 20% - 30% approx. of the problems on this site can be solved.

on Jan 08, 2010 | Computers & Internet

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My eMachine just beeps every 2 to 3 sec when it is turn on no vedio

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my pc just beeps every 2 to 3 sec no vedio

Posted by avatar14.jpgmike russell on Apr 02, 2012

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Solutions (1) Either your video card is bad or you might have some bad memory. Does the video ever post anything on the screen when you press the power button to start the computer?

It really sounds like a memory problem.
Remove the Power Cord, Open the Case and remove one of thememory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x onit with an ink pen. If it fails to boot then move the chip to the nextmemory slot and try rebooting. If it fails take the chip out and set itaside, then put the other chip in and try booting it in both slots. If itboots, just to verify that the chip set aside is bad, mark an x on it and putit into the open memory chip slot and try booting.

Apr 02, 2012 | Computers & Internet

1 Answer

My HP a749c randomly shuts down after 20 mins being on. To start it I have to hold power button for 5 secs and only than by pressing it again it starts for another 10 - 20 mins. Where would be the...

Hardware issues: (most likely the motherboard)

Start by removing:
Ram Chip one by one. See if it will change anything (if it doesn't put that back in)
Cd Drive
Hard drive
Anything else (video card, PCI components)

Dec 12, 2011 | HP Pavilion a749c PC Desktop

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My computer does not start up looks like in satnd by mode

Most All-in-One Personal Computers (PCs) are based on internal laptop/notebook component technology.

The first item to test is the Alternating Current (AC)/ Direct Current (DC) Power Adapter to see if there is:

damage or a fault in the cabling;

damage or a fault in the transformer box;

a fault, damage or a loose connection in the AC/DC Adapter Jack point via which the AC/DC Adapter plugs into the PC.

If no AC/DC Adapter-related fault is evident or any such fault is definitively resolved (such as by testing a definitively functional replacement AC/DC Adapter), then his sounds like either a Loose AC/DC Power Jack detached from or short-circuiting its Motherboard Solder Points, a Power Management problem on the Power Management Tracks, Electrolytic Capacitors or Power Management Contoller Integrated Circuit (IC)/Chip on the Motherboard or a Graphics Chip or Graphics Card damaged surface or Motherboard Solder Point Contact fault.

Any of the 3 internal faults described above would require specialist internal diagnostics, repair and testing by a technician with specialist laptop repair experience and specialist Infra Red Workstation, BGA Reballing StationMicro-Soldering, Oscilloscope, and Multi-Metering equipment.

DC Jack repairs are likely to be moderately expensive. Power Management or Graphics repairs are likely to be more expensive still, but if conducted by a professional, all three repairs should resolve the problem. A competent repair technician should be able to repair these faults and offer a minimum 3 month warranty on a reoccurrence of the same fault.

So, on the symptoms described in the question, yes. Unless it is just an AC/DC Adapter fault, this will probably prove to be a serious, non-DIY repair problem, I'm afraid.

Dec 04, 2011 | Acer Veriton Z431GUi5650W 215Inch AllInOne...

2 Answers

Green tinge on imedia s1800

This is generally caused when your display cable isn't plugged in all the way or has a broken pin. Make sure the cable is seated at both ends, if it still is bad remove the cable and check for bent or missing pins, if yes replace the cable.

Nov 08, 2011 | Acer Computers & Internet

9 Answers

Dead Toshiba A100 laptop computer

In order to replace the power jack in your laptop you’ll have to remove the jack from the motherboard as I explained in the previous post: Replacing DC power jack.
While removing the jack you can accidentally pull out the internal copper coating (I’ll call it a sleeve) from the inside of the “+” terminal as it shown on the picture below.
The internal copper sleeve has been removed and cannot be installed back. If you solder the power jack back on the motherboard without this sleeve it might work but the connection between the “+” lead and motherboard will not be reliable.
In the following guide I explain how to fortify a damaged power jack connection. You can use this repair technique in some laptops with similar power jacks.
Laptop is dead. How to troubleshoot the problem.In this post I’ll explain how to troubleshoot a dead laptop and find the problem. The following troubleshooting tips are not model and brand specific, they should work for most laptops.
Let’s take a look at two different scenarios.
Example 1. The laptop is absolutely dead. 
When you plug in the power adapter and press on the power button, there is no signs of life at all. The laptop will not make usual noises, LEDs will not light up, the fan will not spin, the screen is blank and black, etc… In short, the laptop is dead.
What you can do in this case?
1. Make sure the wall outlet is working and the laptop DC adapter is getting power from the outlet. Try another wall outlet.
2. Test the laptop DC power adapter, make sure the voltage output is correct. You can test the DC power adapter with a voltmeter.
3. Let’s say the DC adapter is fine and the adapter outputs correct voltage. In this case unplug the power adapter from the laptop, remove the battery, wait for 1-2 minutes, plug in the adapter and try turning on the laptop again.
OK, you tested the adapter and it’s bad. If you decide to replace the original DC adapter with a generic one, you’ll have to follow this rule:
The voltage output on your new adapter has to be exactly the same as on the original adapter. The amperage on the new adapter could be the same or higher.
If nothing helps and the laptop is still dead, apparently the motherboard is fried or there is a problem with the DC power jack. It’s possible the DC power jack is broken and the motherboard is not getting any power from the adapter. In this case you’ll have to disassemble the laptop and replace the power jack. Check out thisguide for fixing laptop power jack.

Jan 12, 2009 | Computers & Internet

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