 Interference With External Monitor-powerbook, whine on tannoy reveals |
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 Mon 22 May 2006, 16:00
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Newbie
Group: Members
Posts: 6
Joined: 21-Dec 04
From: London - UK
Member No.: 56,993
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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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Replies
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Sun 4 Jun 2006, 19:48
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Newbie
Group: Members
Posts: 1
Joined: 04-Jun 06
From: Berlin - DE
Member No.: 80,313
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QUOTE (brettybwoy @ Mon 22 May 2006, 17:00)  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 Hi, I'm experiencing the same problem if I connect my PB G4 to my LCD display using the supplied DVIcable. I used different USB/FW devices, with the USB device I only notice a hum, with the FW devices also some electromagnetic interference (when you move the mouse, you hear it on the speakers). At the moment, you are the only one I have read which has the same problem. Have you fixed it yet? I had the same problem using a VGA monitor with the Apple DVI to VGA Adapter. Funny enough, Apple's own Cinema Display is working fine... I am also using the Tannoy (passive) monitors, but that should be a coincidence... About the logic board, I have a new logic board installed two months ago and still the same problem, so probably that won't be it.
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