Hi its just below and to the right . The part PTC1 is a 1.5k ptc thermistor ,( a 1.5k resistor works ), yes on 2k ohms range 350v dc to probes took out r6 900ohms (2x 1.8k in par) took out the ptc1 took out tr1 . no other damage now working and calibration is ok. the 1.5k ptc was from...