Some newer sets have a DGS relay. If stuck it will blow
fuse. The 3 legged thermistors gave trouble in Toshibas but
arced. Also 150 ohm hot is very low unless it uses a relay.
BTW sets with a DGS relay may only have one relay. The PS
is always on & on/off is done by turning on/off the hoz osc.
A quick pulse from the micro works the DGS relay.
When running right & warmed up the set should draw apx 3/4 amps.
73 Zeno
LFOD !