I experienced that same problem at the last company I worked for. There was a circuit breaker panel one the same wall that the 2 monitors were located. We wound up re-arranging the area slightly to ensure that the monitors were away from that wall. It wasn't conducted through the line cord. My thought was that it was possibly an immunity problem with those two monitors in particular and we switched monitors, but that wasn't it. It was merely a matter of physical proximity.
We never pursued any fixes? other than moving the monitors. John A. Juhasz Product Qualification & Compliance Engr. Fiber Options, Inc. 80 Orville Dr. Suite 102 Bohemia, NY 11716 USA Tel: 516-567-8320 ext. 324 Fax: 516-567-8322 -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Tuesday, June 01, 1999 12:09 PM To: [email protected] Subject: 60Hz in PC Monitor I have in my company, several people asking for help with swimming in their monitors. There systems are connected to a half wall (windows on top, power and heat on the bottom). The head is steam radiation via baseboard radiators. These monitors are NOT next to any known magnetic fields. I have verified that if the monitors are physically moved away from the wall/heater the noise diminishes. In the row of multiple cubicles only selective people have the problem (perhaps 3 out of 15 or so). The noise appears to be 60 Hz in nature although no color purity problems were noted. I'm assuming that I am now looking for magnetic fields, possibly from the electrical feed line, or could it be the radiators? Is it possible for these to be nodal or selective along a common wall? Has anyone else had similar problems? Would it make sense to obtain a meter to measure the magnetics? Any suggestions appreciated. Rick Busche Evans & Sutherland [email protected] --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators). --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
