Polar 92 emc 47 ohm resistor sizing

Discussion in 'Cutters and Trimmers' started by Zx6rpunk, Oct 4, 2019.

  1. Zx6rpunk

    Zx6rpunk New Member

    Joined:
    Oct 2019
    Messages:
    1
    Location:
    Wisconsin
    so my gf work asked me to look at their cutter. I found lower than normal dc voltage everywhere, the 47 ohm resistor on the main power supply board has blown apart. This is the one located next to the 25mf capacitor. Does anyone know the wattage of the resistor? She had spent almost 5k in service calls. I think she has wasted enough money for being such a small shop. Any help would be appreciated.
    Thank you
    Jeff
     
  2. synthology

    synthology New Member

    Joined:
    Apr 2017
    Messages:
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    Location:
    us
    Wattage is 1 watt and I do not think it has any connection with " lower than normal voltage everywhere " , check incoming voltage to cutter and check if this corresponding with tag on main transformer.
     
  3. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,541
    Location:
    Managua,Nicaragua
    Hi sir:
    The colleague Syntholoty, has reason is 1 watts for Power in resistor.

    However is Nothing to do with the "Lower that normal voltage everywhere"".

    Please take this test: 1) +5Vdc in Card BR 2)+5vDC in CU unit 3) +24Vdc in CU unit 4) +42Vdc in CU unit 5) -12Vdc in CU unit 6) -30Vdc CU unit, all tolerance will be in 5% up or down, otherwise, the power supply is defective.

    However you must test the Voltages Input for 220Vac or 380 Vac or whatever voltages you use in the Primary Tap of Main transforme of the paper cutter, and adapt the respective Tap of the properly input.

    Blessing
    superchock@yandex.com
    Mobile+WhatsApp:+505 8861 1441
     
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