r93
it is a 1/4watt &is located in front of d106 & t102.one side goes to neg.side of c107 & the other side goes to pin 13 of ic1.the paper tag on the hot & regulator heat sink says this is a 2820h chassis.2820h is also marked on the pcb board.i can't find r93 on any schematics similar to this one.