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#114122 06/27/11 07:24 AM
Joined: Apr 2005
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Anyone having issues with the screen contrast on Mitel 5340 phones? Suddenly a lot of our phones are having issues where the contrast changes, in some cases to the point where the screen is unreadable.


Mitel 3300Mxe running MCD 4.0, 5340 Phones
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Does the contrast adjustment have any effect on the screen one way or another?

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It does...and I know like a year after we first installed the system many of them had to be adjusted, but now I'm suddenly seeing a lot of them where its getting extreme - you correct it, and then a few days later is either lighter or darker again.


Mitel 3300Mxe running MCD 4.0, 5340 Phones
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I think I see the problem, although I'm not sure what's causing it. As far as I know the volume adjustment is supposed to adjust ringer volume up or down when the phone is idle - well right now its adjusting contrast. Someone went to turn up the volume and the screen went black. Figure that one out!


Mitel 3300Mxe running MCD 4.0, 5340 Phones
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Just looked at the manual, I guess thats normal operation. Not sure why the screen contrast is easily changable yet the ringer takes programming a button to change.


Mitel 3300Mxe running MCD 4.0, 5340 Phones
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the ringer can be adjusted while it's ringing smile , handset volume when off hook on the handset and handsfree speaker volume when handsfree


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