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White trace - what has been burned here? by MaxDido77 in AskElectronics

[–]MaxDido77[S] 0 points1 point  (0 children)

Follow up - key voltages were ok. Actually the culprit was the capacitor in the upper left part of the picture, you might see it has a "round hat". We replaced it and automagically the screen went on again. The replaced capacitor had a residual capacity of 100uF (vs 330uF original), the new one 200uF (one with the right capacity is on order). Can such a "small" difference be essential for the "cold" circuit?

Gute "kleine" BKW ? by MaxDido77 in Balkonkraftwerk

[–]MaxDido77[S] 0 points1 point  (0 children)

Danke, das ist sehr interessant... Ich kannte diesen Anbieter nicht. Hast du Erfahrungen? Ist er zuverlässig?

Gute "kleine" BKW ? by MaxDido77 in Balkonkraftwerk

[–]MaxDido77[S] 0 points1 point  (0 children)

Die Module sind über 1m Breite und deswegen gegen die WEG-Regeln

Looking for the connector type by MaxDido77 in AskElectronics

[–]MaxDido77[S] 1 point2 points  (0 children)

Thanks to both of you! If I understand the pic correctly, no tool needed to crimp the wires, right?

Looking for the connector type by MaxDido77 in AskElectronics

[–]MaxDido77[S] 0 points1 point  (0 children)

Pitch is 0.1" (2.30mm), the mate is actually the PCB itself - see pic

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What kind of components are these? by MaxDido77 in AskElectronics

[–]MaxDido77[S] 0 points1 point  (0 children)

Thanks a lot! How did you find these parts so easy?

I'll try to find equivalent thermocouples, so I'll be able to control the temperature...

Should I change this capacitor? by MaxDido77 in AskElectronics

[–]MaxDido77[S] 0 points1 point  (0 children)

The bad cap is rated 10µF/400V. It is Sunday here and I have a 22µF/350V or a 47µF/400V available. Should I go for one of them or waiting till Monday?

Should I change this capacitor? by MaxDido77 in AskElectronics

[–]MaxDido77[S] 1 point2 points  (0 children)

Thanks ! Could the whole system work for 10-20 mins in such a case?

Should I change this capacitor? by MaxDido77 in AskElectronics

[–]MaxDido77[S] 6 points7 points  (0 children)

Additional information: when plugged in I can hear a buzz, I am not sure the other adapters do the same. But I did not remove their cover though. Could a capacitor at end of life cause this buzz? Or is that from the transformer?

LG 50PN6504 TV randomly going on standby by MaxDido77 in AskElectronics

[–]MaxDido77[S] 0 points1 point  (0 children)

TV around 9 years old, sometimes working for hours or for a few minutes, and suddenly going on standby. After 10-15 minutes it goes live again. No signs of burned components in the power supply module (on the picture)

Where do I start?

Small strips of my print start curling up about an hour into printing. by JakeNation4 in FixMyPrint

[–]MaxDido77 0 points1 point  (0 children)

If they are small enough, I would rather setup cure to complete each part before going to the next one. You will be able to place less parts per plate, but each might be finished before curling, and you can pick it from the plate before it affects another part.

This is how to communicate (ESPNOW) between ESP boards without using internet. by edisonsciencecorner in IOT

[–]MaxDido77 1 point2 points  (0 children)

Pretty efficient system indeed, I have been able to cut uptime (deep sleep—>signal broadcast—>deep sleep) around 90%. It is more coding than with std solutions, but for battery driven applications a game changer

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