I just imported an ALPS MD5000 printer from the USA and stupidly forgot to plug it in to my 240>110 transformer before plugging it in ...BANG went the fuse and at least one component on the PSU board....(you get used to everything being auto-sensing these days!).
The printer was new, but at least 5 years old (these printers are unique in that they are capable opf printing white thanks to a unique ribbon cartridge system), they are hard to come by and cost me quite a bit to get here..trouble is that options for 'professional' repair here are very limited (alps only service in the USA), which means that I am going to have to fix it myself (I can solder and have done some electronics in my time - mainly kit build stuff)..
Looking at the board, it seems (from visual inspection at least) that in addition to the fuse, the next component in line (which is what I can't identify) has also blown (I am hoping that this will be it, but one thing at at time!).
The part is a mystery though. My guess is that it is a thermal fuse or Transorb (not sure whether these work with AC at all). Markings on it are 7C241 49P (with the symbol 'SA' in a circle). I have tried all the obvious combinations (googled endlessly), but no luck.
Can anyone shed any light? As I say it is directly inline after the 4A fuse and the marking on the board looks like a resistor, but with one set less Squiggles (like a Z on its side). The board is marked 'Z1' for the component (all other components are marked as ususal Cn for Caps, Rn for resistors etc).
I have posted some images of these here :
Any help would be gratefully received.