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the correct settings for LG 700E CRT Monitor. Sometimes, the settings ofthe monitor change automatically. Also, even after resetting the monitorsettings, sometimes, they remain same. So, I'll tell you the correct settingsfor LG 700E CRT monitor. Let's move to the main part. So, Check the following settings. ForBrightness and Contrast: http://is.gd/dMBn9 For Position: http://is.gd/dMBub For Size: http://is.gd/dMBBU For Shape: http://is.gd/dMBDC http://is.gd/dMBGe
1- VGA chord; is it loose or faulty?
2- Power Supply section not regulating perfectly.
3- Supply line from SMPS/Regulator power supply to EHT.
4- Brightness lines and controls (Resitance may be dry soldered or burnt)
5-Pin connection on rounded board of CRT neck may be loosed, Check it if loose than fit properly.
6- Adjust the precet for accelearting and focusing anode externaly fixed with EHT if inbuilt in EHT than only solution is to replace the EHT only.
You could have a bad cathode ray tube or you have a bent pin on the VGA cable. this could also be due to a color correction circuit on the monitor circuit board. Your monitor may also have succumbed to age.
I think that two capacitors in the powers supply circuitry(incise the monitor) has gone bad. Just open and you'll see them. This should solve your problem.Best of Luck.Please rank me appropriately. If you want any clarification, Please get back to me