Having problems with your LG Computer Monitors ?

Brightness and contrast increases suddenly

\015 I have LG 700E monitor and it was working well for last 3 years. From last few weeks, a problem has come that its brightness and contrast increases suddenly. Sometimes it works well but sometimes its difficult to even read the things displayed by it. By hitting lightly on the backside the brightness become normal. Please help me with this.\015

Answers :

Replace the eht only
Check following:
\015\0121- VGA chord; is it loose or faulty?
\015\0122- Power Supply section not regulating perfectly.
\015\0123- Supply line from SMPS/Regulator power supply to EHT.
\015\0124- Brightness lines and controls (Resitance may be dry soldered or burnt)
\015\0125-Pin connection on rounded board of CRT neck may be loosed, Check it if loose than fit properly.
\015\0126- 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.
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