1.The flyback transformer used For RECI DY20 Co2 laser power supply / laser engrave machine

2.The RECI DY20 laser power supply  has 3 pieces / one pair flyback transformer. so you must  choose 2 pieces/(one pair ) for your laser power .

3.Please check the install schematic diagram.

4.The screw is for install fixed on the laser power box.

5.If the laser engrave machine no laser beam come out . Then you need replace a new flyback transformer for the laser power.

6.If the Co2 laser engrave machine laser power is weak , and it can’t cut through any materials . Then you can adjust the laser power to maximum value. at the same time . you check the machine ampere.If the Am indicator is still less than 8 Am. Then you need replace a new flyback transformer for the laser power supply.