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  1.

    Need Help ROLAND SP-540V SERVO BOARD REPAIRING

    Hello , i hope someone can help me into repairing this sp-540v servo board. i have a short to the ground on the output of IC13 ( voltage regulator) but i cannot understand what this 3v goes in to power.. Can someone with more experience in this stuff give me an hint? will happily pay for any...
  3.

    Mutoh RJ900 not printing some channels help

    Hi to all. I have a mutoh rj900 that does print good BLACK channels, but only one channel for the others.. It is a board problem, since i replaced main board with a working one i use for tests and all is printing ok. Now.. someone can help me with a service manual and/or suggestions what...

  4. hello from italy

    i am a 40 year old technician from italy. usually work with epson plotter but in the last times i had to repair some mimaki and mutoh too. i hope to be a good user of this great forum
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