BUSH RF2185NTX SIL DEAD

[tv john]

Hi guys,have the above Bush RF2185 NTX with no o/p from chopper tx. I have bridged the mains smoother,replaced a 47 and 2.3 caps.Start resistors seem ok as I'm getting 12v to chopper ic and
320v to fet. All diodes read ok. Has anyone had the TDA chopper drive ic faulty  in this Beko 16.1(I think).
Cheers John.