Hi forum friends,
A friend bought this working AOC lcd monitor and used it without problem for less than 6 months. Yesterday he brought to me and said it has a horizontal line now and will auto shut off in less than 2 minutes. Btw he had decided to dump it if not repairable. As a friend, i tried my best to help and after opening the case i don' t see anything burned or parts having cold solder joint.
Fyi, most of the electrolytic caps are tested within 5% range on esr reading except that i changed cap at c918(680uf reads 654.3uf) to a 1000uf cap. Also i added a 680uf 25v cap at c921 for voltage boost if that helps.
Other that what i had done, i have no more clue as to why the horizontal line is still there and still with auto shut off issue. I would appreciate if someone with experience and patience can kindly guide as what to check and do to bring this monitor to normal working condition. Thanking in advance.
A friend bought this working AOC lcd monitor and used it without problem for less than 6 months. Yesterday he brought to me and said it has a horizontal line now and will auto shut off in less than 2 minutes. Btw he had decided to dump it if not repairable. As a friend, i tried my best to help and after opening the case i don' t see anything burned or parts having cold solder joint.
Fyi, most of the electrolytic caps are tested within 5% range on esr reading except that i changed cap at c918(680uf reads 654.3uf) to a 1000uf cap. Also i added a 680uf 25v cap at c921 for voltage boost if that helps.
Other that what i had done, i have no more clue as to why the horizontal line is still there and still with auto shut off issue. I would appreciate if someone with experience and patience can kindly guide as what to check and do to bring this monitor to normal working condition. Thanking in advance.
Comment