2275: poor man's tuner alignment?

[ssouci]

just finished recapping my 2275

while I try to find someone locally in Vancouver, Canada to professionally align the tuner (not too promising so far!), I'm wondering...

is there a "poor man's" alignment procedure I can perform to at least set up some of the more basic or critical settings?

perhaps something like was mentioned here?:
http://www.audiokarma.org/forums/showthread.php?t=265631

the tuner works OK, in stereo, frequency scale seems quite accurate, etc., but I'm sure that after this age and the recap, needs an alignment for best performance... since the recap, the signal strength meter reads a bit lower on strong stations

I have only a digital multimeter available, no signal generator, scope, etc.

???

thanks!

 

[Bob91343]

Well as I recall (I have a 2275 but don't use it any more) you can watch the meter and tune for maximum on most of the adjustments. What makes you think you need an alignment?

Best to get the service manual and study it before sticking any tools into it.

 

[stahlhart]

For AM, you can tune to a medium strength local station (like a regional channel in the daylight hours), and peak the IFs using the signal strength meter. You can then use stations at known frequencies at opposite ends of the band to adjust dial tracking and RF sensitivity (use the receiver's service manual to locate the adjustment points). For dial tracking, the adjustments will interact, so you'll probably have to go back and forth a few times to get it set correctly, or at least as close as it will get. As with the IF, signal strength meter for peaking the RF adjustments.

For FM, I wouldn't touch anything besides the dial tracking (oscillator, RF strength) without proper test equipment -- if you're unlucky or not careful you'll probably just end up making it worse.