PIN1PROBLEM.COM

The purpose of this site is to share information about what is known or more accurately "UNKNOWN" as a PIN 1 PROBLEM in the audio industry. The term "Pin 1 Problems" was first coined by Mr. Neil Muncy in his June 1995 paper titled "Noise Susceptability in Analog and Digital Signal Processing Systems"

You might be surprised to find out that all that humming, buzzing & noise coming out of your PA & monitor system is being caused by poorly designed gear! In many cases, there isn't anything you can do besides replace the offending gear with well designed gear.

Links

Jim Brown's paper part 1
Jim Brown's paper part 2
Jim Brown's paper on SCIN - part 1
Jim Brown's paper on SCIN - part 2
Rane's page on the Pin 1 Problem
Jensen paper on How to build a "Hummer" to test for a Pin 1 Problem
Jensen paper on proper grounding
Peavey article on Pin 1
Article by Philip Giddings
Audio Systems Group PDF on the Pin 1 problem & HAM radio
Tony Waldron's (of CADAC) article on EMC - part 1
Tony Waldron's (of CADAC) article on EMC - part 2
Tony Waldron's (of CADAC) & Keith Armstrong's article on correct shield bonding
Rane's version of Jim Brown's paper in a different format
Henry Ott's technical articles on EMC,EMI, proper grounding, etc...
Henry Ott's tech tips on EMC,EMI, proper grounding, etc...
Mackie's article on grounding, buzzing and a Pin 1 Problem
Bill Whitlock's - AES 05 "An Overview of Audio System Grounding & Shielding"

If you have any corrections or comments regarding the information presented on this site, please email me:

EMAIL