Ike - the VU was constantly dumping its oscillations onto the power rails. It was certainly custom fit to the desk in question - nothing against the man, but it was a Triosi VU. I saw a burned resistor on it's PCB, never had the time to investigate further.
FM On Mon, Jul 18, 2011 at 7:48 PM, Ike Zimbel <[email protected]> wrote: > > Yes, in the master section. Frank, was the VU meter making noise while at > rest, or only when responding to program? > best, > Ike > > > On 11-07-18 7:36 PM, [email protected] wrote: > >> Ike, Logic chips in the master section or?? >> >> >> thanks , doug >> >> *From: *"Ike Zimbel" <[email protected]> >> *To: *[email protected] >> *Sent: *Monday, July 18, 2011 4:09:59 PM >> *Subject: *Re: NEOTEK: aux noise >> >> >> Hi Doug, >> Following on Matt's suggestions, I would agree that the oscillator >> section could be suspect. I would also check that all of the logic chips >> are well seated and that their leads and sockets look good. Replace them >> if they don't. Also make sure that all of the ground connections, >> including mechanical connections to the front panel (pots, switches >> etc.) are clean and tight. It is unlikely that the Aux sends are >> creating this noise, but more likely they are amplifying noise that's >> coming from something common to them, again as Matt said. I am away from >> the shop for a couple of weeks so I don't have access to my Elan >> drawings to give you specific chip names, locations etc. >> Best, >> Ike >> >> On 11-07-18 8:54 AM, Matt Syson wrote: >> > Hi >> > You are looking for something 'common' as it adds up when listening to >> > more stuff on Solo. >> > It could be supply noise (check with an oscilloscope) or a module >> > which is seriously noisy or even talkback or slate tone circuitry that >> > has access to aux busses although may be nominally 'switched off'. >> > Double check all possible outputs and look for any 'common' circuitry >> > (the 'block diagram' should get you close). Ultimately, pull modules >> > or 'break up' the mix bussing if it is available on plugs. >> > Matt S >> > >> > On 18/07/2011 13:35, [email protected] >> > <mailto:[email protected]**> wrote: >> >> >> >> >> >> Hello, I think this is the way to post here. >> >> >> >> >> >> I have a 15 year old 40 channel Elan I bought new. It's been very >> >> reliable. It was in a fire 7 years ago. I got it back in commission >> >> after a couple of idle years of storage and cleaning/repairing. It >> >> was recommissioned and has done pretty well, everything works except >> >> some partially working l.e.d. meters. >> >> >> >> Lately the master section has a small ripply sound when cranked all >> >> the way up without channels turned on. Small annoyance, but >> >> irritating. However when you solo the auxes you get a really intense >> >> version of hiss noise ripply trash, sounds like a combination of >> >> computer interference meets bad caps/junk. As I said it's appeared of >> >> the last few months. Soloing A,B,1,2,3,4, just adds to the crap >> >> incrementally. When using the track busses to pro tools, it's fine , >> >> goes to pro tools good and quietly. >> >> >> >> I recently tested and or replaced all the resistors in the power >> >> supply and recapped the power supply. I also disconnected the Elcos >> >> for everthing except the monitor one to the amps to make sure it >> >> wasn't from another piece of gear. >> >> I still have the trashy sound in auxes. Any suggestions? Any logical >> >> procedure to locate the source of my noise? >> >> >> >> thanks , doug >> >> -- >> Ike Zimbel, >> Zimbel Audio Productions Ltd. >> Toronto >> 416-720-0887 >> >> "Studio House Calls". Authorized Warranty service for Allen& Heath, >> Clear-Com, Drawmer, Soundcraft, SPL and Yamaha. Repairs and upgrades to >> analog audio equipment including: AMEK, dbx, Neve, Neotek, MCI, Soundcraft >> and more. Ask about our RF frequency co-ordination services! >> www.zimbelaudio.com >> >> ------ >> >> View the list online at: http://www.mail-archive.com/** >> [email protected] <http://www.mail-archive.com/[email protected]> >> >> You can unsubscribe at anytime by sending an email to mailto: >> [email protected] with "unsubscribe neotek" in the message body. If >> you have any difficulties, or questions --please send an email to mailto: >> [email protected]. >> >> The Neotek list is lovingly hosted by Catapult Web. Remember that any >> message or reply sent to the list will be automatically forwarded to all >> subscribers. >> >> Vive Le Neotek! >> >> Thanks. >> > > -- > Ike Zimbel, > Zimbel Audio Productions Ltd. > Toronto > 416-720-0887 > > "Studio House Calls". Authorized Warranty service for Allen& Heath, > Clear-Com, Drawmer, Soundcraft, SPL and Yamaha. Repairs and upgrades to > analog audio equipment including: AMEK, dbx, Neve, Neotek, MCI, Soundcraft > and more. Ask about our RF frequency co-ordination services! > www.zimbelaudio.com > > ------ > > View the list online at: http://www.mail-archive.com/** > [email protected] <http://www.mail-archive.com/[email protected]> > > You can unsubscribe at anytime by sending an email to mailto: > [email protected] with "unsubscribe neotek" in the message body. If > you have any difficulties, or questions --please send an email to mailto: > [email protected]. > > The Neotek list is lovingly hosted by Catapult Web. Remember that any > message or reply sent to the list will be automatically forwarded to all > subscribers. > > Vive Le Neotek! > > Thanks. >
