Having problems with your Sony CPD G420 19" CRT Monitor ?

Hi, I hope you can help. I have a Sony Trinitron monitor. It suddenly went a bit out of focus. I am trying to find a restore function, with no success. I wonder if you have any suggestions.


Answers :

Hi,
\015\012\015\012Follow these\015\012instructions carefully.
\015\012\015\012Make sure the monitor\015\012is in a place where you have easy access,
\015\012\015\0121. Unplug\015\012the monitor and disconnect it from CPU
\015\012\015\012
\015\012\015\0122. \015\012Remove screws from the\015\012back, then remove the back, locate the flyback transformer on the circuit board, (big black\015\012thing with red wire connected to the screen). You should see three knobs on the\015\012side check to see which one is marked focus, (usually the middle)
\015\012\015\012
\015\012\015\0123. \015\012Have\015\012someone stand in front of the monitor or make sure it is facing a mirror and\015\012the mirror is close to it.
\015\012\015\012
\015\012\015\0124. Reconnect the monitor to the CPU, plug it in\015\012and turn them on, leave running for about ten minutes
\015\012\015\012
\015\012\015\0125. Then using a screwdriver that fits, slowly turn\015\012the knob while confirming with the person standing in front of it whether it’s\015\012getting better or not. If its not try the other direction. If there is no one\015\012then check the reflection in the mirror. Once you are satisfied turn the monitor\015\012off for a minute then turn it back on, if it is ok then turn it off, unplug and\015\012disconnect it from CPU. Replace the back and screws.
\015\012\015\012
\015\012\015\012Dont touch anything else with\015\012screwdriver while turning knobs. It is always best to wear shoes with rubber soles\015\012when working around electricity.
You have to open your monitor back. find a big part called flyback. there is two nossel in it. adjust forcus nobe litte bit for clear picture. this will definetly slove your problem.
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