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Adjusting brightess on monitor

Hi, i have a time monitor its about 4 year old, Im trying to adjust the brightness, its quite dark, i've tried the buttons on the monitor and its set at the highest setting, but its still very dark. i was just wondering if there was a setting in the control panel i could use, im sure i've done it before, i just cant remember where i did it!!! any help would be fab, many thanks bethanx

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  • Anonymous Mar 08, 2008

    BRIGHTNESS WONT ADJUST ON NEW AH 191 MONITOR. tHE LOWEST SETTING IS STILL TOO BRIGHT AFTER IT ADJUSTS TO MY SETTING

  • Anonymous May 18, 2008

    how to adjust brightness

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Maybe you can adjust it in the playback....

Posted on Mar 03, 2008

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There is a small light behind TFT screen which must have gone bad

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I don't know how to adjust the bright and dark for the screen.


To adjust the brightness and contrast, do the following:

1. Press the either the Minus button and highlight the option you wish to change.
2. Press the Menu button to select the highlighted option.
3. Press the - or + buttons to adjust the brightness/contrast settings.
4. Press the Menu button again to accept the changes.

Click the link below for the documentation on this monitor:
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Hi,

Assuming no hardware/component fault, the dimness of a monitor signifies near end of life of the CRT (tube).

There are a few tricks/tweaks that can be done but of course these are just prolonging the inevitable. Should you want to give any of them a try, they are:
1. Adjust the Screen controller at the rear of the Flyback Transformer (FBT) to maximum effective brightness. It may also be needed to adjust the Focus control;
2. In some versions, there are sub-bright and/or Automatic Brightness Limiter (ABL) trimpots soldered direct to the PCB that can be adjusted;
3. the heater voltage can be slightly increased either by using a stepdown transformer that has multiple taps about1~2 amps. In some instances, the heater has an external loop around the core of the FBT, adding a turn or so would also serve the same;
4. adding a 100uF/160V capacitor after the diode of the FBT's output that supplies the 3 color drive transistors.
5. use the HV/anode cap of a small monochrome monitor to inject high voltage to the screen grids of the picture tube of the 22" CRT. the heater of the 22" CRT must be temporarily shorted.

All of the above require familiarity and knowledge of electronic components and circuitry, use of a soldering iron and working around high voltages.

If you are not comfortable going through this route, perhaps your best bet would be to seek the services of a qualified professional.

If your concern has not been corrected after completion of the above procedures, you may need to replace the monitor.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FIXYA.

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1 Answer

Dark


It could be a few things, it may be the monitor itself, which naturally has dark picture.
Or by factory default the monitor has low brightness.
Try going into the menu and putting the brightess up.
Most monitors have low brightness by default.
have a happy new year.

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It looks like your UP button contact is demaged.
SOLUTION is to insert a piece from your business card mostly above the button to adjust it down or up. It works fine.

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1 Answer

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1 Answer

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