Question about Philips 105S51 15" CRT Monitor

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Monitor I was trying to change the resolution on my monitor and accidently hit a button saying 'Extend screen'. Now my monitor turns on, shows a picture for about 15 seconds and then goes black. No picture. What happened and what do I do to correct it?

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I was trying to change the resolution on my monitor and accidently hit a button saying 'Extend screen.

Posted on Oct 06, 2008


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Posted on Jan 02, 2017


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Tried to enlarge the screen and screen went black and now showing this! I turned it off and hit F8! It came on I pressed safe mode! I tried to get on Internet and it locked up again ! Back to this scr

When a monitor displays "Input not supported", the display resolution is set too high. To resolve this, change the resolution to a supported resolution of the monitor.
In Windows XP
  1. Click Start, click Control Panel, click Appearance and Themes, and then click Display.
  2. On the Settings tab, under Screen resolution, drag the slider to the desired resolution and click Apply.
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You didn't say which OS you're using but it sounds like you've changed the aspect ratio of your video signal. Different screen resolutions have somewhat different aspect ratios. The aspect ratio indicates the ratio of the number of pixels of width to those of height. For example: my video driver offers a resolution of 1280 x 960 or 1280 x 720 which would give screen aspect ratios of 1280/960 = 1.33 :1 and 1280/720 = 1.77 : 1. The latter would produce a narrower image. You can compensate somewhat by increasing your horizontal sweep voltage with your monitor menu. A better solution would be to select a resolution that more closely matches your monitor's screen size.

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That auto configure button is for the monitor to adjust it self to correctly display the correct resolution as FED BY THE VIDEO card, the resolution on the monitor is CONTROLLED BY THE computer, not by the monitor.
If the resolution setting on the computer is not showing the 1280 x1024, then either the driver for the video card is corrupted or need to be reloaded.
Native resolution of this monitor is 1280 x1024 @60Hz.

Service manual:

Basic LCD monitor and TV troubleshooting guide:
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Learn about bad caps:

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Check your switchers resolution settings .....
You might have to change your resolution settings....

This solution is for AOC Monitors......

Setting the Optimal Resolution
The recommended resolution for this monitor is 1680 by 1050. To setup the monitor to this resolution, follow the steps below.
  1. Click START.
  2. Click SETTINGS.
  4. Double click DISPLAY.
  5. Click SETTINGS.
  6. Set the resolution SLIDE-BAR to 1680 by 1050.
External Controls
Press the power button to turn the monitor on or off. The other control knobs are located at front panel of the monitor (See Figure ). By changing these settings, the picture can be adjusted to your personal preferences.
* The power cord should be connected.
* Press the power button to turn on the monitor. The power indicator will light up.
203-35.jpg Hope this helps ,
Rate me please,
Cheers Misterdj

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Best Regards

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