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Author Topic: QSC 1400 pots Jack Ondracek Film God Posts: 2348 From: Port Orchard, WA, USA Registered: Oct 2002 posted 01-12-2004 11:51 PM                        Is anyone here benching these amps to replace scratchy pots, and if so, is there a common part number for them? Seems I'm getting more than my share of dropouts lately. I inherited these 1400s when I took the theatre over, so I don't know for sure how old they are... I suspect at least 6 years + though.  |  IP: Logged Jonathan M. Crist Jedi Master Film Handler Posts: 531 From: Hershey, PA, USA Registered: Apr 2000 posted 01-13-2004 12:32 AM                     I believe that the 1400 series is at least a dozen years old. I have rack full of them and swear by them. The only problem I've ever had is with an an on/off switch going bad.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 01-13-2004 08:28 AM                     Although I've had my share of failures with the 1200's, 1400's, and USA 900's I still like em alot and their sound quality is excellent! Never had a pot failure in one though. Mark  |  IP: Logged John A. Parker Jr. Film Handler Posts: 21 From: Brevard, N.C., USA Registered: May 2003 posted 01-13-2004 09:04 AM                     WD-40 works wonders for noisy pots. Now everybody will tell you to use contact cleaner,but contact cleaner always evaporates. The WD-40 doesn't. Use sparingly. A little goes a long way and clean up the excess. John A. Parker Jr.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 01-13-2004 09:51 AM                     WD 40 has some solvents that carbon pots will not like MG chemicals makes excellent cleaner call nu trol that cleans the contacts and leaves a lubricant  |  IP: Logged Daryl C. W. O'Shea Film God Posts: 3977 From: Midland Ontario Canada (where Panavision & IMAX lenses come from) Registered: Jun 2002 posted 01-13-2004 10:16 AM                        Nu-trol Control Cleaner kicks the llama's ass. Don't even bother with WD-40. Unlike WD-40, Nu-trol won't eat plastic. http://www.mgchemicals.com/products/401b.html http://www.marvac.com/products/mgchem/401b.htm  |  IP: Logged Jack Ondracek Film God Posts: 2348 From: Port Orchard, WA, USA Registered: Oct 2002 posted 01-13-2004 12:01 PM                        quote: Never had a pot failure in one though. Hmmmm... must be our tropical Seattle-area climate... or maybe because these things sat in their racks for about 2 years in an unheated theatre. I have a couple of pots that flat drop out from time to time (gotta wiggle them a bit), and 3 or 4 that are noisy. I'll check into that Nu-Trol.... but mainly because I want to see what a llama looks like with a seriously-kicked ass! Thanks, Guys.  |  IP: Logged Ken Layton Phenomenal Film Handler Posts: 1452 From: Olympia, Wash. USA Registered: Sep 1999 posted 01-14-2004 01:22 AM                     Jack: They stock Nu-trol Control Cleaner here in Olympia at Electronic Resourcing. That's where I get mine from.  |  IP: Logged

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