Help finding value of burnt resistor. (lemmy.nz)

submitted 2 years ago by WaltzingKea@lemmy.nz to c/askelectronics@discuss.tchncs.de

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Mates bread maker stopped working so I had a look inside and saw this burned resistor.

I'm guessing the heat changed the colors a bit so wondering if anyone has experience in reading cooked resistor values.

I removed it from the PCB and measured it at 403 Ohms.

Thanks for any help.

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[-] Susan_B_Good@discuss.tchncs.de 2 points 2 years ago

I'm old school. I'd reverse engineer that part of the board, work out what the resistor was doing and then choose a value, much as the original designer did.

From that small section of the board - I'd guess that it is a resistor in the CR voltage dropper, used to power the electronics.

this post was submitted on 04 Jul 2023

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