It's tedious, but doable, because somehow these chinese components often have the same functionality and pinouts. When I fix stuff I'm trying to find a counterpart from any western manufacturer. These ICs might be available only on Aliexpress because there is a ton of China brands that are not distributed in Mouser or Farnell. And I refuse to replace any USB connectors ever again I always ask a technician at work to do that for me, and offer a bottle of wine. I don't have microscope either, my everyday glasses are good enough. That's why it is very important to keep that in mind - power first, always! And I still think this is the most likely cause of the damage your display suffered. If you connected data lines and just one of the power supply pins, you're quite likely to damage protection diodes on either side of the link. I ordered IC's from AliExpress, the only place I find this type of components. That was the first time I soldered this type of IC's, i have no microscope, camera or magnifying glasses, i soldered few times ago USB type C connector inside a smartphone, really fun time i sweated a lot ! Yeah I know the trick of the usb pins, it has some logical, than IC's are powered on, before data comes. I think I touched PCB with hands, very surprised that it causes damage. When I saw that, I tried to power on again, but it was too late. My local electronics shop don't stock 0402 components because, they say, "no point selling something that is impossible to solder by hand"įor the damage, i think it appears when I tried to move screen while is was on, but didn't pay attention that it has turned off. SOT23-6 is rather pleasant to work with once you get a grasp on it and I congratulate reaching that point.
If you look closely at the USB plug, its power pins are longer than data pins, exactly for this reason - to ensure the potential reference is present first.Ībout your soldering, I admire your courage.
So, as a rule of thumb, always connect grounds of everything first, then proceed with positive terminal, and finally signals. This is relevant when you connect something to already powered on circuit, because I assume you didn't disconnect the car battery first.
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