ERROR-7 ON HO-HSING HVP 90

HO-HSING PCB REPAIRING MANUAL.

Hohsing PCB repairing is very easy if you know how to repair & have proper guideline. Maximum of the time IGBT get damage. In my experience I never seen, this control boxes fuse burn. First check IGBT, if you dont know how to check IGBG click here. After replace IGBT the PCB board still E-7 appear please check & replace photocuplar.

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