CAT-HO-8000 CONTROLLER -SEMITOOL SAT

  THE REPAIR STORY↓↓↓ 

*The CAT-HO-8000 CONTROLLER was reported faulty from SEMITOOL SAT system.
*Troubleshooting found R2300 temperature controller doesn't power-up.
*Performed thorough troubleshooting separately with the controller. 
*Found high frequency transformer shorted at R2300 power area.
*High frequency transformer doesn't have any markings. Difficult to identify the specs.
*Studied the alternative solution. Disabled the power area from the R2300 controller 
  and power-up the controller using external power supply. Unit works perfectly.
*Modified the unit casing with external power supply firmly attached.
*Saved USD 11K.