[JRC] JST 245 PSU and Service manual

[Charles H. Brain]

Hello Folks,

Well I have now managed to get hold of a JST-245 service manual.
>From what I can figure the resistor that has gone is in the drain of a FET.
The FET is switched from a sample of the rectified DC mains. So I suspect 
this forms part of a switch on surge protection circuit. In which case I will 
probably have to replace the four switching FETs in the PSU as well as 
the resistor. I suspect the resistor had been O/C for some while and that 
the FETs had been left unprotected.
 
- Charles