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McIntosh MR78 tuner repair

The glass on my tuner needs to be cleaned on the inside. I'm asking those who have opened theirs up if it was a difficult job or not. I am fairly handy and was wondering what is involved. Or should I leave this up to the pros?
markpao
atmasphere's avatar
atmasphere
12,085 posts
 
Be careful if you decide to remove the glass- the lettering on the dial can be fragile.

If this really is an older unit get the filter caps replaced! Otherwise your power transformer is at risk and they are not easy to find.
markpao OP
524 posts
 
How I can tell the difference between an original filter cap and a replacement?
I've owned the unit some 6-7 years and don't know if the previous owner(s) had any service work done on it.
atmasphere's avatar
atmasphere
12,085 posts
 
Replacements will likely have a sticker identifying its brand, pin out and associated values. The originals will have that info stamped into the side of the part.
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