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Dodgy manufacturer

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clucas:
who the hell scrapes the ICs to hide the identifying markings so they can't be replaced. This is the daughter board off a 'Shanghai Electronics Way' treadmill motor control board. Geez Louise.

Electro Detective:

"...helo, we don't want our design copied, tank u 4 ur email..."    ::)


At least that may explain why I see so many new-ish looking treadmills dumped on nature strips

Once they fail 6 weeks past the warranty period and the owners advised of the board replacement price  :o      out she goes...  :palm:

helius:
The usual reason for erasing markings is not to frustrate repair but to try to prevent cloning the design.

amyk:
Nevermind the fact that those look like pretty standard parts and tracing out the schematic one could probably guess what they are, or their function...

JohnnyMalaria:
Should've painted out the resistor values, too. Or a good coat of Flex Seal over the whole thing.

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