Polar 115em monitor

Discussion in 'Cutters and Trimmers' started by andy martin, Oct 20, 2020.

  1. andy martin

    andy martin Member

    Joined:
    Aug 2016
    Messages:
    42
    Location:
    bradford po
    Hi all
    Screen shows cut circuit interrupted after cut buttons pressed, no clamp or knife movement.
    Any ideas
     
  2. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,737
    Location:
    Managua,Nicaragua
    Hi sir:

    Please test the power supply board PS: Use his schematic diagrams electrical

    1) +5Vdc Green LED ON V4 2) +12Vdc Green LED ON V2 3) +24v+Vdc green LED ON V1 , if some one is OFF, test the respectively FUse in the same board.

    the tolerance in the Voltage must be 0.7% up or down.

    1a) test the +42Vdc terminals in the secondary of transformers: CU1.6+CU1.9 for Magnets

    2)in the board SK: look for LED RED V84 NORMALLY OFF, For control circuit clamping Y27 must be ON, when cut button is pressed
    LED RED V89 NORMALLY OFF, FoR control circuit Cut y33, must be ON, when cut button is pressed

    3) in the same board SK; LED RED V81 NORMALLY OFF,For safety bolt Y-SB +42Vdc From K1, go to ON, when cut button is pressed

    4) test the cut button for continuity, and look for any loose connections, dirty, broken, corrosion. or faulty Cut button.

    Blessing
     
Loading...