Good afternoon, mates. I have a DVD Home Theather brand RCA Model HT917DA which is dead. does not turn on, at the first check no damaged component is noted, check input voltages and they exist, but there is no output voltage. there is no voltage at the input of the choper transformer, before this is an IC PWM with registration DM0565R but it is not clear to me how to check if it is in good condition or not and try to get it but there is not. I hope you can guide me. Thank you for your opinions.