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german77
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Topic Author
Posts: 5
Joined: Tue Apr 17, 2018 8:23 pm

Groove no boot Fix

Mon Aug 13, 2018 8:11 pm

I have many faulty groove's. But I found a way to fix 40% of the devices. When 2 lights are on all the time or the first four are on and the other two are kind of blinking. The solution is to remove the heat-sink. As funny as it sounds the heat-sink causes those problems. Of course you need the heat-sink otherwise it will over heat. The only problem is that how you will fix this problem permanently and why happens now and not when it's new.

I tried cleaning the termal paste and replacing it with a non-conductive termal paste. Even used a thick layer to ensure that the heat-sink doesn't make a short of some kind. They all still are faulty when I put back the heat-sink. The only semi-permanent solution I found is to remove the screw that is closest to the capacitor c32, if I tighten that screw the groove starts to fail.

Is this a know design problem? Or what else could it be? All the thermal pads/screws are ground so even if the heat-sink makes continuity, it shouldn't matter. The most posible problem it's a cracked solder point or component that when the heat-sink presses against the PCB causes it to fail open.
 
vaniz
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Posts: 2
Joined: Tue Aug 29, 2017 6:36 am

Re: Groove no boot Fix

Tue Dec 11, 2018 2:46 am

Hi bro, me to same as your problem. Loose some screw these normal. Other way it happen again.
What exactly trouble. I don't no
 
KSharon
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Posts: 1
Joined: Fri Dec 07, 2018 9:14 am

Re: Groove no boot Fix

Tue Dec 11, 2018 8:37 am

we can try some methods to correct faulty grooves like by using wood strip filler or applying rope filler method.

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