Kikusui pwr1600L 80v 100A PSU Repair

[tektronixman]

Does anybody have any service information for this psu The device has stopped outputting after a user calibration, it goes in to constant current mode with zero voltage and current which is not adjustable When put into calibration mode the voltage calibration all woks fine but the current calibration gives no output. I feel this is probably a control issue as there are occasional sporadic alarms   Any info would be very welcome
Colin Goode

[coromonadalix]

Ask their support

Under an non disclosure agreement for other model, i received a full schematic ...