Hi all, I have a NAD 4150 which works perfectly except that when using the "search" function it won't stop on any stations. It just blows by even the strongest ones in my area. Manual tuning works fine. Any ideas or comments would be most appreciated. Thanks in advance!
Usually the discriminator needs adjustment. Really need to be done in a shop - there's not really a practical way to figure out your adjustment and measuring points without a service manual.
Basically one puts a dc voltmeter across a test point and adjusts for close to 0 millivolts when tuned to a station at around 98 mHz. Occasionally the test points are marked but the discriminator has a primary and secondary adjustment. One affects the tuning center, the other affects audio distortion. The second one I mentioned should be left alone unless you have a distortion analyzer and FM generator, etc.
Mark Z.
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