#Help needed with damaged chip on Fly Super 8 Pro

1 messages · Page 1 of 1 (latest)

floral anvil
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If anyone can help me identify the exact chip I need to replace, I’d appreciate it even more.
I live in a country where Amazon charges import fees that almost match the price of a brand new board, so I’m hoping I can find the chip on AliExpress instead. It would be much more affordable for me.

worldly garnet
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thats a 74HC541

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i would guess you've probably killed more than just that though

floral anvil
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damn

worldly garnet
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with "just" that dead heaters 0-5 and fans 0 and 1 wouldn't work but the rest would

floral anvil
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Besides the burned chip (shown in the image), which other components might have been damaged?

floral anvil
worldly garnet
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3.3v regulator, 5v regulator, MCU, maybe more

floral anvil
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Also, I haven’t been able to test whether the stepper drivers still work, because I think the power supply for the Wi-Fi module might also be damaged. the board no longer connects, so I can't control or check anything remotely.

worldly garnet
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that sounds like more was taken out then

floral anvil
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... i'm scared

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i don't wanna spend 50 dollars on a new one

worldly garnet
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best strip out the board and power it up

floral anvil
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it turns on, yeah

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the blue light is there

worldly garnet
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see if anything gets hot, also make a note of what LEDs light up

floral anvil
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i'll have to check which ones turn on, and which ones doesn't once i get back home then

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i'll answer as soon as possible, thanks

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By the way, would a 74HC541D be a compatible replacement for the damaged chip?
I’m asking because we previously tried using TMC2209C drivers, which the board should have recognized without any issues, but 3 out of 5 were dead on arrival, and the other 2 didn’t work at all. I eventually had to buy a full new set of 5 TMC2209 drivers... and fortunately, those worked correctly.

worldly garnet
floral anvil
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that's a relief, i cannot find the regular ones on aliexpress, and amazon charges me 36 just for a single chip... without taking in count import fees.
at least ali has a single chip for 2 about usd

image.png
worldly garnet
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i expect you've damaged more parts though

floral anvil
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i hope not that many got fried