Matt.S 0 Posted July 29, 2008 hello. first time posting, this seems like the place. i have a refine mh721, not purchased from this site. and a little while ago it just stopped working. when i turn on the switch it makes a sort of grinding noise, and the blade(box) will not move. ive opened it up and it all "looks" good inside, wires solders etc. im thinking the motor is faulty though. anyone had this kind of problem before, or think they might know what it is??? please help before i buy a new cutter. thank you. Share this post Link to post Share on other sites
kenimes 42 Posted July 29, 2008 When the unit is turned off, can you move the carriage from one end to the other freely by hand? Share this post Link to post Share on other sites
Matt.S 0 Posted July 29, 2008 yeah u can move it, but not when its turned on Share this post Link to post Share on other sites
Guest fivestar Posted July 29, 2008 You're not suppose to be able to move it when it's turned on unless you force it. Move it to the middle of the cutter when it's turned off and then turn it on and see if it moves over to the side by itself. If it does try a test cut and see what it does. Share this post Link to post Share on other sites
Matt.S 0 Posted July 30, 2008 just tried putting it in the centre, still does the same thing, no matter where it starts from Share this post Link to post Share on other sites
kenimes 42 Posted July 30, 2008 Possible motor issue, or the motherboard failing to send the signal to the motor. Share this post Link to post Share on other sites
Matt.S 0 Posted July 31, 2008 possible to get parts for these cutters? any links to the sites plz. thanks a lot Share this post Link to post Share on other sites
bk2design 1 Posted July 31, 2008 http://www.uscutterdirect.com/Refine-Parts-Supplies_c_6.html Share this post Link to post Share on other sites
Matt.S 0 Posted July 31, 2008 thanks for that. other then the motor and mainboard. is there anything else it could be?? Share this post Link to post Share on other sites
bk2design 1 Posted July 31, 2008 A while back someone had posted soemthing about a belt being loose and gears that were grinding. I don't remember when or who it was though. Share this post Link to post Share on other sites
Matt.S 0 Posted July 31, 2008 oh ok, the belt is tight. but the sound is like gears grinding or something. Share this post Link to post Share on other sites
bk2design 1 Posted July 31, 2008 Is the grinding in the carriage for the cutter or for the rollers for the vinyl? Share this post Link to post Share on other sites
Matt.S 0 Posted July 31, 2008 hard to tell exactly. the needle drops down. then the grind noise Share this post Link to post Share on other sites
kenimes 42 Posted July 31, 2008 I would actually have to see what it is doing to give you my best guess. I am still leaning towards a motherboard issue though. Seldom has any user had to replace a motor. Share this post Link to post Share on other sites
Matt.S 0 Posted July 31, 2008 ok ill try get a better look at it today hopefully Share this post Link to post Share on other sites
Matt.S 0 Posted August 1, 2008 just thinking also on the LCD panel, and key pad on the side, the lights that first come on, reset and whatever. sort of flicker.. kinda like its freezing maybe? if that helps at all. ty Share this post Link to post Share on other sites
kenimes 42 Posted August 1, 2008 The only light that should come on when you fire up the MH series cutter, is the red reset light. If you have any others coming on, it is definately a mainboard issue. Share this post Link to post Share on other sites
Matt.S 0 Posted August 1, 2008 well looks like ill buy a mainboard. hope that fixes it. are they hard to install? doesnt look it Share this post Link to post Share on other sites
kenimes 42 Posted August 1, 2008 well looks like ill buy a mainboard. hope that fixes it. are they hard to install? doesnt look it Naw, piece of cake. Share this post Link to post Share on other sites
Matt.S 0 Posted August 1, 2008 i see theres 2 mainboard assemblies, one with usb port, and serial etc. which one is more suited? ill be using a laptop and it looks to have a serial. but im unsure which board. ty. Share this post Link to post Share on other sites
Matt.S 0 Posted August 3, 2008 anybody? sorry but id like to get it ordered asap. Share this post Link to post Share on other sites
bk2design 1 Posted August 3, 2008 You'll have to wait till tomorow when Ken is back at work Share this post Link to post Share on other sites
Matt.S 0 Posted August 4, 2008 ah ok then, no worries ty Share this post Link to post Share on other sites
kenimes 42 Posted August 4, 2008 Remove the right side casing and if you see a little I/O circuit board with a flat grey ribbon cable plugged in to it, you need the model GJQ motherboard. If you see a main board with a fan and the output connection ON the main board, then you need version Square USB. Share this post Link to post Share on other sites
