The_Motorcyclist
Member
- Messages
- 39
- Location
- Cambridgeshire UK
I have an XTT182DV inverter set, which is currently not showing any signs of life.
A preliminary investigation is showing that I am getting AC voltage to the first pair of rectifiers and when the DC side of the rectifiers is disconnected from the main PCB there is 240V DC. When the DC side of the rectifiers is reconnected, the voltage is pulled down, possibly indicating a short circuit.
Since the DC voltage is getting pulled down, there is no voltage on the control side, therefore no power indication light or anything else. Nothing is tripping as the short circuit load is being dissipated across a pair of resistors in series with the AC supply to the rectifiers. These are getting hot at the moment.
My question to you is do you think a set of first stage IGBTs and diodes may cure the problem or could it be something else?
I have a copy of the service manual.
A preliminary investigation is showing that I am getting AC voltage to the first pair of rectifiers and when the DC side of the rectifiers is disconnected from the main PCB there is 240V DC. When the DC side of the rectifiers is reconnected, the voltage is pulled down, possibly indicating a short circuit.
Since the DC voltage is getting pulled down, there is no voltage on the control side, therefore no power indication light or anything else. Nothing is tripping as the short circuit load is being dissipated across a pair of resistors in series with the AC supply to the rectifiers. These are getting hot at the moment.
My question to you is do you think a set of first stage IGBTs and diodes may cure the problem or could it be something else?
I have a copy of the service manual.