My Xantrex Inverter/Charger has about 1/3 of the FETs and two diodes burnt up on the inverter board: 200-0183-01-01 Rev. E. Could you provide an estimate for repair/replace of that board? The Unit Model Number is XW 6048. US, 220 V, 60 Hz. Also indicate whether you really need the entire unit for this repair. I have the C/B removed, but have not attempted to detach the heatsink.