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> Interference With External Monitor-powerbook, whine on tannoy reveals
brettybwoy
post Mon 22 May 2006, 16:00
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Hello Macmusic folks. I have a very annoying problem. I am using a g4 powerbook 12" (1.25ghz) with an edirol fa 101 firewire interface and tannoy reveal active monitors. When I plug a external vga monitor into the powerbook, I get a high pitched interference on the tannoys. this also happens if i plug in my printer to usb. i have bought a couple of ferrite core rings from Maplin and tried placing them on monitor and firewire cables, to no avail. Anybody know how to cure this? Mac shop said it may be logic board...
PHEW! THANKS. BRETTY
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lepetitmartien
post Wed 24 May 2006, 02:06
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Do you have an halogen lamp around, a fluorescent lamp?

Is the ground in you house well grounded?

Could you give us a guess of the frequency of the interference?

Are the interface, the reveals, the printer all plugged into the same main?

On the mac side… Have you tried to install the CHUD tools from the developer software from Apple? (and disable nap in the processor prefpanel you have then installed) see on the OS X install CD/DVD.


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