Thanks for the tip, I'll try re-seating the flat cable connectors. Already cleaned the multi turn noisy freq pot with success by drilling a small hole and injecting suitable contact cleaner / lubricant inside.
Peter On Sat, Aug 7, 2010 at 9:20 PM, Randy Fisher <wb9...@indianadata.com> wrote: > > > Hi Peter, > > > > I had my 3551 failed sometime ago, was intermittent connections in the > unit, just cleaned and reseated connectors and IC’s, unit has worked fine > since? > > > > You may want to try it and see if it works. > > > > > > > > *From:* Repeater-Builder@yahoogroups.com [mailto: > repeater-buil...@yahoogroups.com] *On Behalf Of *petedcur...@gmail.com > *Sent:* Saturday, August 07, 2010 11:18 AM > *To:* Repeater-Builder > > *Subject:* [Repeater-Builder] HP3551A Service manual > > > > > > Hi, > > > > I saw someone had used a HP3551A TIMS to set up repeater audio levels. I > have a used HP3551A also, but it recently stopped working. Wonder if anyone > had schematics? The manual I found online had everything but no schematics. > A good high resolution Jpeg photo of the schematics would be greatly > appreciated. > > > > Peter > > > > Ex. G8DCB. Now resident in FL.USA. > > >
