Actually they don't really look bad, but since it didn't always boot last time I'll recap it anyway.

Hmm not that easy, solder pump doesn't work well on it, need to heat and gently pull one leg, then the other, then back the first one… then use solder pump to remove the remaining solder.

First row done, but I'll have to stop there, the only tool to cut legs I have is my old fingernail cutter, which doesn't cut well anymore.

Better wait and borrow the right tool next week than screw up.

Ok all done! Some pads were in the middle of ground planes and were very hard to empty, I ended up heating and gently pushing the new cap leg inside since I couldn't get my pump to get the solder out.

I was tempted to replace the few smaller ones left, I probably would have if it wasn't as cumbersome. They aren't as close to heating components anyway.

The last ones I replaced, the 1000µF, had bent legs from factory, I had to fix the spacing, and I figured it would actually be simpler to not have them flush with the board anyway, in case they must be replaced again. One could just cut the legs and resolder on them directly instead of risking destroying the board. I highly suggest doing this for all caps in case you attempt it yourself.

Suivre

YAY, I didn't burn it!

Now I need to clean the thermal paste, and try to remove unglue the second CPU, I'll just see if I can dissolve the compound, else I'll just leave it as is.

· · Web · 1 · 2 · 5

@MedBel @mmu_man I received today my first dual-core #RISC-V 64bits (RV64GC@600MHz) ^^. But it as also an ESP32 for WiFi (ESP32 is a good open-source managed DSP, like in FAUST for great synthesizer) + an “AI” neural network processor (called here KPU) a microPython microsystem is embedded, But it is mainline Linux bootable :).

Inscrivez-vous pour prendre part à la conversation
Mastodon G3L

Instance de l'association G3L basée à Valence, Drôme, France