Re: I fried my Arduino Mini...
No short circuit protection? craaap!
No short circuit protection? craaap!
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Re: I fried my Arduino Mini...
Btw, idiot question: is uf5408 the same as 1n5408 ? The datasheets are identical outside the "reverse recovery time" entry which doesn't exist for the 1n...I reckon UF means ultra-fast, while 1n is a general purpose rectifier....which is it ?Wattevah...Comment
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Re: I fried my Arduino Mini...
good spot, the UF series is indeed an Ultra-Fast version of the 1N series.
infact it is very handy to keep a few UF4007 in your spares box.Comment
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Hi,
I'm learning electronics(already have some basics) by fixing a FH52M LA-J891P rev1B. It come from an acer nitro 5. The charger was defaulting upon pluging. The 19V rail resistance is 0ohm (I believe that caps screw my measurement). When i inject 5A, I get a rail tension of 1.3V, and 0.8V vcccore.
Except the cpu, I cant feel anything getting warmer.
I believe that it is normal, because the cpu is "eating" half the power I'm imputing.
I dont know if the cpu is fried, because I did not remove the big capacitor on vcccore.
I believe that if the cpu was fried,... -
Dear members,
I have a linear variable power supply with unknown brand name that I used for voltage injection.
Then it failed. I discovered that its transistors (Q1 and Q2) are shorted.
In addition, I discovered that its zener diodes are defective.
I can replace the burned transistors.
But I do not know the model of the zener diodes. the model number is not marked on the zener diodes.
Therefore, I cannot replace the zener diodes.
I do not want to test the zener diodes in a test circuit to discover their model or value.
no schematics are available... -
Hi, I'm Daniel, and I'm new to the world of repairing motherboards.
I would like to create a table, or more likely a guideline about the voltage rails and their possible resistance rail.
I know that the motherboard design has a very big depend on the rail's resistance, but I would like to know what is the smallest value for a rail that can be acceptable. For example, I heard that some new gaming motherboards can have 0,5 Ohm resistance on the GPU rail, but on an older type, it could be a sign of a shorted GPU rail.
So, I generated a table with AI so I can... -
This specification for the HP 260 G2 Desktop Mini PC can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the 260 G2 Desktop Mini PC boardview and 260 G2 Desktop Mini PC schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet,...09-12-2024, 03:36 PM
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This specification for the HP Stolnà poÄÃtaÄ 260 G3 Mini can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the Stolnà poÄÃtaÄ 260 G3 Mini boardview and Stolnà poÄÃtaÄ 260 G3 Mini schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer...09-12-2024, 02:20 PM
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