hi all,l have a brand new scroll saw with a serious appetite for fuses,it is SD1600V with a variable speed control and originally came from ALDI,though it is actually made in china and is sold under various brand names,main one being sheppach in Germany,it has a fuse holder mounted in the front panel just under the variable speed knob,and is fitted with a 5 amp glass fuse as stahdard,it also has a nvr switch,problem is, the fuse blows instantly on switching on at the socket,l have tried repositioning the speed knob but this has no effect,l cannot locate a wiring diagram anywhere,but l do question the fitting of a 5 amp fuse,l am sure it must draw more than that,having closely inspected the circuit board everything seems fine,but there must be a short somewhere,l am reluctant to try a higher fuse rating,as if there is a short,l will only cause further damage,an idea l had was to bypass the speed control and settle for on/off only,by running the mains feed to the IN side of the switch,and connecting the motor direct to the OUT side of the switch,bypassing the circuit board/speed control/fuse carrier completely,any help will be more than welcome!!!!!
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