Question about Biostar GeForce 6100-M7 (890552602711) Motherboard

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I get no video signal, processor does not seem to be running. I did change the 3300uf 6.3v capacitors at pct2,pct4,pct5, pct6 & pct7.

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Replace mobo.

Posted on May 13, 2010

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Hi
A common problem for these is bad capacitors in the power supply, Remove the back from your Tv and look at the power supply on the left hand side.

You will see roughly around 9 x capacitors that are bulged / domed shaped on top usually these are valued at 3300uf 10V any that have bulged or leaked a brown like substance should be changed.
This will cure the problem as they overheat being sat next to a heatsink that gets very hot!
Try and change them for the same 3300uf but a higher voltage.
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The screen went blank with a pop sound. Now when you try to turn it on there is no audio and no video and and there is a funny sound that comes out of the TV


Hello, good day.
A common problem for these is bad capacitors in the power supply, Remove the back from your Tv and look at the power supply on the left hand side.

You will see roughly around 9 x capacitors that are bulged / domed shaped on top usually these are valued at 3300uf 10V any that have bulged or leaked a brown like substance should be changed.
This will cure the problem as they overheat being sat next to a heatsink that gets very hot!
Try and change them for the same 3300uf but a higher voltage.
Hope this helps

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Hi
A common problem for these is bad capacitors in the power supply, Remove the back from your Tv and look at the power supply on the left hand side.

You will see roughly around 9 x capacitors that are bulged / domed shaped on top usually these are valued at 3300uf 10V any that have bulged or leaked a brown like substance should be changed.
This will cure the problem as they overheat being sat next to a heatsink that gets very hot!
Try and change them for the same 3300uf but a higher voltage.
Hope this helps in solving the problem, also take caution, because it contains high voltage

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Re:"shutdown after video comes up the green power light stays on but the set will not shut down while changing channels."

Hi.

I do not think this has anything to do with logic circuits and video processing. When you stay on one channel the horizontal and vertical alignment circuit works more than if you change channels all the time.
This is just a guess, but have a look at convergence ICs. when you keep changing channels the power amp ICs (or transistors) go on and off, if one of them is defective it will overheat and shut down.
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The short answer is no. You can replace a 3300uf 10V cap with a cap of similar value but a slightly higher voltage (3300uf 16V or 25V).

Changing the capacitance value will significantly alter the circuit. Please note that the value listed suggests that it is a component in the power supply, specifically a filter cap.

Dan

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I had the same problem with the same Model TV. after doing some research i found that i had 2 bad 3300uf capacitors. I made a video of the repair and posted it to youtube. the TV works great now! Check out my video! i hope this helps.

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