The answer depends on your monitor model, of course.
For some of the LCD models you may reset the monitor by pressing (and releasing) the "MENU" button (OSD menu appears) then hold the "SOURCE" button for a few seconds. When you see the monitor blinks it means that reset was done.
You can use the ZTX box to reset a t528g Samsung.
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how to reset samsung GT-E2550
The best way to reset a Samsung GT-C3300K phone is to do a master reset. A master reset can be performed within the settings feature of the phone.
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Go onto the website or samsung dealer
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