Recently I've got to repair a Trumf BUM60S, besides the exploded condensers and defective IGBT modul I'm encountering a problem at the internal power supply module. There is a smd resistor nearby the chopper transformer and the C110 electrolyte condenser (220uF/25V), actually between the transformer and the condenser. The problem is that the resistor is burned, the PCB also and I cannot measure what could be the initial value of it.
Somebody does have access to the schematic diagram to tell me what is the value of the resistor?
Regards.
Trumf (Baumueller) BUM60S
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