I'm trying to fix my Mecer 5KVA, it has error 09 on it. Took it for repair but the technician passed on before fixing. Now I don't know which IGBT goes where. It uses 4266D and 4750D. Can someone assist.
How do I match them here:
QB2, QD2, QDA1, QC1, Q32, Q30, Q29, Q27, Q28