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Monitor switchs between digital and analog

My SyncMaster T220 monitor just started 4 days ago randomly beginning to switch constantly between Digital and Analog.. the only way it stop is if i restart my computer. but then it keeps happening and it's getting rather annoying when trying to watch a movie..

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  • jahknow Jan 31, 2009

    ive had the same problem for a little while now...i have 2 t220's running a dual display setup...only 1 had the problem and i noticed it only happens to me when waking up out of sleep mode... just tried what you suggested... i have a feeling this will work... i guess i never got that deep into the menu system... thanks for the post...

    -jono

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I had a similar problem, the monitor was going blank once in a while (since I don't have a VGA input), so I switched the Auto Source feature to "Manual" and so far it's working fine for the past 2 days, if I run into the problem again I'll update this message.

On the side panel of your monitor, press the top button to access the menu, scroll down to the setup menu (by pressing the 3rd button down on the panel), press the 4th button down to enter the setup menu, scroll down to "Auto Source", use the 4th button to select, "Auto" & "Manual" are your choices.. press the 2nd button down to select "Manual" then the top button to exit the menu(s).

This monitor is set up to be able to do multi display with the software included. Utilizing both Digital and Analog signals. I'm not using this feature so I'm not sure how switching the Auto Source off will affect the performance of this feature.

Posted on Jan 02, 2009

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I had the same problem, so I switched the Auto Source feature to "Manual" and so far it's working fine for the past 2 days, if I run into the problem again I'll update this message.

On the side panel of your monitor, press the top button to access the menu, scroll down to the setup menu (by pressing the 3rd button down on the panel), press the 4th button down to enter the setup menu, scroll down to "Auto Source", use the 4th button to select, "Auto" & "Manual" are your choices.. press the 2nd button down to select "Manual" then the top button to exit the menu(s).

This monitor is set up to be able to do multi display with the software included. Utilizing both Digital and Analog signals. I'm not using this feature so I'm not sure how switching the Auto Source off will affect the performance of this feature.

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My acer laptop with windows xp will not allow me to select the optimal resolution for my samsung moniter. How do I fix this?


The Samsung SyncMaster 730b is a 17-inch analog and digital TFT-LCD monitor delivering crisp, clean text and bright, vivid colors. This display offers a 600:1 contrast ratio, 300 cd/m2 brightness, 1280 x 1024 resolution, 160/160 degree viewing angle, scanning frequency of 30-81 kHz horizontal and 56-75 Hz vertical and 0.294mm pixel pitch
The SyncMaster 730b display offers the option of using either a digital or analog interface for viewing images and text. The Digital Video Interface (DVI) ensures a shaper, cleaner image and a more accurate representation of the original video source. Since video starts out digital in a PC graphics card, the digital output is directly interfaced to the digital input of the LCD panel and always provides the optimum quality image. In addition, no adjustments are required with a digital display, even when randomly changing resolutions. Input connectors for this display include 15-pin D-sub and DVI-D. Available in black, the SyncMaster 730b delivers a maximum of 16.2 million colors. The monitor is Windows Plug and Play DDC 2B compatible
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DO YOU MEAN WONT SWITCH FROM ANALOG TO DIGITAL!!!

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