This is pretty straightforward question to an ago old question ;) I've been using the service manual to do the card calibration for several years but the procedure for doing the 4 pole and 2 pole initial frequency calibration and the VPO on Trimmers T-11 through T-14 still bothers me. I get them matched up the best as I can across all 8 cards but I have a tough tine getting the noise to match the oscillator if you know what I mean. I tend to error to a more bright and 'open sound' on T11 and T14. Has anybody developed an alternative method for doing this adjustment? I'd love to hear your thoughts on this one. James
Message
OB-Xa initial frequency calibration process.
2013-03-18 by FL_799