Recent News:

Successful PV7 - home repair

The PV-1 to now...
Post Reply
Elrick
Regular
Regular
Posts: 14
Joined: Sat Apr 12, 2014 4:48 pm

Successful PV7 - home repair

Post by Elrick » Fri Oct 20, 2017 7:54 pm

Just thought I would share a small victory. Yesterday while listening to my PV7 the left channel dropped out and the volume and balance pots had no effect. I checked my tubes and examined the board carefully for anything obviously, but saw nothing. And hooked up my back-up preamp and feared the worse.

Today after removing the face plate and bottom cover I was able to take off the rectangular volume pot's cover and check it out. I sprayed the fine metal brush-like contacts with a bit of Deoxit D5, exercised the pot, and sprayed it off w/ compressed air. I only had good access to either the left or right channel of the pot, since there was another pot below the one I could see and was afraid of taking it apart any more. I got lucky, and it's sounding better than ever. Volume and balance work good!

Fingers crossed, my modified Dynaco PAS 3 wasn't cutting it.

User avatar
admin
Site Admin
Site Admin
Posts: 1123
Joined: Tue Jan 03, 2012 1:50 pm
Location: New Hampshire, USA
Contact:

Re: Successful PV7 - home repair

Post by admin » Fri Oct 20, 2017 8:09 pm

Nice job! As our equipment ages, they sometimes need a little loving care to get them back to their former glory.
-admin
Home Theater in Member Gallery
Conrad Johnson Owners.com Main Page

Current Conrad Johnson Equipment in System: Evolution 2000, PV-12L, and D/A-2b.

Elrick
Regular
Regular
Posts: 14
Joined: Sat Apr 12, 2014 4:48 pm

Re: Successful PV7 - home repair

Post by Elrick » Fri Oct 20, 2017 8:13 pm

Yeah, it's probably over 30 yrs old. The only thing left for my little job is to re-seat the power "ON" light. It's not getting much light out the face!

Post Reply