Hi

I have repaired the unit once before and it had the swollen capacitor problem changed it out for new and all was OK but it failed again. Opened up and it had another swollen capacitor but this time canning it out still no good.

the unit is totally unresponsive to the controller ( which seems to send a signal OK) after digging around I found theta the capacitor I changed the second time has no volts across it. Further checks suggested the power supply ( based SSC620 chip) is either in s standby type of mode. Two other supplies read around 29V and 3.5V.
...