Motorola roundie

[timmy]

Originally Posted by old_tv_nut

If you can now turn the slug, you can do the alignment. You only need a color signal source and a voltmeter.

At the point where the procedure says "Connect the Vertical Input of a scope to point H..." you do not have to do that. Instead, view the picture and try turning the hue control from end to end to verify that correct hue is in the center. If it is not, then touch up A19 to center it.

I assume you are referring to the slug in A18 that’s the one that’s stuck. How much voltage should I see on pin 1 of the phase detector if the oscillator is running or does it even matter if not running there won’t be any voltage.

[Yamamaya42]

Originally Posted by timmy

I assume you are referring to the slug in A18 that’s the one that’s stuck. How much voltage should I see on pin 1 of the phase detector if the oscillator is running or does it even matter if not running there won’t be any voltage.

No, A19 the phase detector, with tint at center, adjust till color is correct, Faces IE reds and greens and such.

@ Username1
the ones I suggested he replace with 1% was the matched pair of 470k
I prefer 1% because the price difference between 1%-5% and so on is pretty much insignificant, especially when resistors are bought in large combo packs of 300+ of multi values. the value i need is always on hand