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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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motherboard repair
I have a sony vaio laptop VPCEF3E1E with a faulty motherboard - the laptop
won't come on properly. The screen is blank and when the power button is pressed the three panel lights flicker briefly and that's all, there's no fan action. I'm given to understand this is a common fault with these laptops and it comes down to a component on the motherboard. Problem is I can't find out which component it is. I'm handy with a soldering iron so if anyone is familiar with this and knows the rogue component I'd be grateful to know. The writing on the motherboard says: HannStar J MV-6 94V-0 D A ONE 8MB C60 REV: C Laptop service tag is: C104NQ4S |
#2
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motherboard repair
On Sun, 22 Dec 2013 16:22:51 -0000, "tg"
wrote: I have a sony vaio laptop VPCEF3E1E with a faulty motherboard - the laptop won't come on properly. The screen is blank and when the power button is pressed the three panel lights flicker briefly and that's all, there's no fan action. I'm given to understand this is a common fault with these laptops and it comes down to a component on the motherboard. Problem is I Do the same people who tell you it's a particular component say that it can be fixed? Motherboards are multi-layer -- I don't know how many layers -- and are I presume harder to fix than single layer or two-sided circuit boards are. Much as I despise web forums, this is probably better for you. http://www.computer-forum.org/forum/...1EWI-Sony.html or the VAIO laptop forum there, since maybe it's not just this model with this problem, and even if it is just this model, some really knowledgable guy might only read a broader forum. Also, if I may, if you give more details in the subject line, like the brand or model number, you're more likely to find someone who knows the answer, esp. in a busy forum like this one or the Sony forum above. (actually you're more specific than a lot of people who would say just computer repair or even repair. can't find out which component it is. I'm handy with a soldering iron so if anyone is familiar with this and knows the rogue component I'd be grateful to know. The writing on the motherboard says: HannStar J MV-6 94V-0 D A ONE 8MB C60 REV: C Laptop service tag is: C104NQ4S |
#3
Posted to sci.electronics.repair
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motherboard repair
tg wrote:
I have a sony vaio laptop VPCEF3E1E with a faulty motherboard - the laptop won't come on properly. The screen is blank and when the power button is pressed the three panel lights flicker briefly and that's all, there's no fan action. I'm given to understand this is a common fault with these laptops and it comes down to a component on the motherboard. Problem is I can't find out which component it is. I'm handy with a soldering iron so if anyone is familiar with this and knows the rogue component I'd be grateful to know. The writing on the motherboard says: HannStar J MV-6 94V-0 D A ONE 8MB C60 REV: C Laptop service tag is: C104NQ4S I recently worked on a Sony laptop that had had Windows 7 64 installed over the origional Vista 64. It had an interesting failure to boot. The left of the 3 LEDs would turn on when you hit the power button, but the HD LED would not. This would happen almost every time I rebooted it. The only way I could get it to boot properly was to leave it powered down with the battery removed for several hours. Then it would usually boot right up. I was thinking that this must be a motherboard or power supply problem, but I finally tried restoring the origional Vista OS from the recovery partition on the disc. I backed up the drive, then did the Vista recovery. Since then, it has booted up properly every time. I'm guessing that there may have been a problem with the boot sector on the drive. I thought about restoring the origional boot sector from the backup and testing to see if the problem comes back, but haven't done that. If your problem is similar, it's possible that re-writing the boot sector might solve it. |
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