A mouse had gotten into the back of our tv, and fried itself to the motherboard. We cleaned it off, now the tv powers on but powers off immediately. It also left a tiny scorch mark on the wall behind it.
Because it is powering on, I know that there might be some hope. Please help. We have already called a repair person, but they can't make it out until Tuesday, and it would sure help our finances if it is something we can resolve ourselves.
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Re: powers on and off immediately
There is no way you can fix this. The problem is most likly the horizontal circuit is bad. Let the repair man fix it. I have fixed this kind of problem before. It is not fun, and may have more problems to come.
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Restart your computer depending on the motherboard it may need to be turned off and back on to reset the fact the receiver for the keyboard was loose or unplugged. Older motherboards would get fried if you tried to plug a keyboard or mouse into a running system, they had to be shut down first and since technology has made modifications and this is one of them.
If you encounter power problems (whatever they are) with the motherboard the only thing you can do is to replace immediately both the motherboard and the PSU. Don't even try to fix them, you can fry everything else and that will be more expensive and you will lose everything on the hard disk.
Ah.. That's not so good. The new USB 2.0 ports carry a bit of power and can burn out things if they get shorted.
It is lucky that this was a front port and not a rear one. As the front ports are generally connected to the motherboard by a cable that you should be able to find and disconnect the (With the power off, PC unplugged)
It is possible that with the damaged USB Port removed, the PC may boot and operate as normal. If this doesn't help, you can try replacing the PC's power supply as it also might have gotten fried by the short.
If neither of these work then it would appear that your motherboard's power controlling circuits got fried and replacing it would be the only option left.
I have similar problem these days. After normal shutting down the PC, it can not be powered up again, the amber light blinks. A temp solution for my case is by doing these steps:
1. leave all monitor, network, keyboard and mouse etc. connected
2. disconnect the power, wait until green light and amber light dim.
3. pop up the CMOS battery, then put back in (better to check its remaining voltage, if not good, change a new one)
4. power amber light flash shorter and lighter
5. disconnect any USB connections like keyboard and mouse,
6. immediately connect keyboard and mouse back into USB ports
7. my pc powers up at this point, all green lights shining. Except it displays CMOS setup warnings, give me options to click either F1 or F2
8. I click F1, it goes into normal login XP
The only problem is I could not shutdown PC again, if I do, then I have to repeat 1-8. I have to use "Standby" instead, which I usually do.
While it is possible the power supply could be going bad, usually it would not work intermittently like this.
Most likely the motherboard is starting to go bad, I would do a quick visual inspection for any buldging or leaking capacitors, if you see any that is definatly what is causing the problem.
If you dont see any damage to the motherboard you can try replacing the power supply, if it still behaves this way then your motherboard is the problem (sometimes there are no visible signs of damage on e-machine motherboards even when they have completly fried)
Either the new power supply you purchased is not functioning correctly. But, assuming it is now that you are getting some form of power to your PC, it is very likely the motherboard. Whatever fried your old power supply (or it could have just been the power supply itself) most likely fried your motherboard in the process. Probably not the CPU since the MB can't even post.
Just replacing the board if its the main board is half of the repair. The memory IC which is usually located on the main board holds all the data for convergence,picture geometry,channel memory,color settings etc..So getting it to run is only half of the battle. Got to http://www.partstore.com and look for the main board. I couldn't however look it up because it says your model number is invalid.