thanks, sounds like fun, ugh...
doug ----- Original Message ----- From: "Frank Moscowitz" <[email protected]> To: [email protected] Sent: Monday, July 18, 2011 5:32:01 PM Subject: Re: NEOTEK: aux noise I once had an aftermarket VU meter (led display) in a series 1 that had an internal problem, yet was still functional, and was the cause of a hard to find high pitched oscillation in the console. The point I guess is that it can come from an unlikely place, I'd pull modules until you make it go away, then start putting them back, etc. Frank On Mon, Jul 18, 2011 at 5:09 PM, Ike Zimbel < [email protected] > wrote: 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] 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.
