"orange" wrote in message
ups.com...
I want to replace blown fuse (12V, 4A) that looks like resistor, but
the store only has (250V,4A) glass one, is it safe to use that?

BTW, the schematics says the line with fuse on it should use max 100mA,
so why would they put 4A fuse there?


If the original was really 100 milliamps and there was a 4A fuse in there
instead, someone did very wrong putting that value fuse in there. Under
certain failure conditions it could even cause a fire.

There's other possibilities, like a printing error in the schematic, a
silkscreen error on the board, etc.

Few pieces, and especially none that have motors, amplifiers, etc would use
a fuse as small as 100 mA.


Mark Z.