decided to try to get my receiver back into working condition - "operate safely" led not on. really miss it. have a photo copied manual, somewhat difficult to read. able to perform the dc offset adjustment. but when attempting the bias current adjust, the test points for 87 and 88 are empty holes on my 2980 ckt board. see that it actually a reading across R601, TR601 emitter resistor. is that also on the 2980 or elsewhere. i have read that the manual was incorrect and that 3.3mv is the goal. any help with the bias adjustment points would be greatly appreciated. thanks in advance!