just replaced that diode,heres a rundown on what i get,on ac current range it oscillates from half scale to full hard over,it does that on all the acv ranges apart from 0.4 and 1.2 ranges then it goes hard over to the right,on dc volst on 0.012,its sits off scale to the left as in no feed to movement,rotating the range knob does nothing until i get to 0.4 then it moves up to zero,4v scale it returns to left just off scale,and stays like that on all other ranges,acvolsoscilates like on the dc range( about 2x per second),0.4 scale its hard over to the right sort of quivers about 2mm very fast,same on 1.2v,all the other ranges,back to a slow oscillation from 3/4 to full scale,dcv,reads low ie 9v connected to the probes measures 1 on the topmost scale,rf range same as dcv range with a 9vdc input,ohms pos,probes shorted 1 division movement to the right on top scale,barley moves,zero ohms pot does more or less nothing.dc current range does nothing,hope this helps,cheers paul.