Screen keeps going blank. Have to turn on and off to get a few more minutes of work done and goes blank again. How can I fix this?

Sonny Berry

• 8617 Answers
• Posted on Jun 15, 2008

SOURCE: TV screen goes blank but power stays on

Sounds like the CRTs are going into protective blanking due to the vertical output ic needing to be resolderd. Try resoldering the vertical IC that may possibly fix the issue.

SOURCE: Blank Screen but sound works on samsung HPS-S5053

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SOURCE: Multisync LCD 1700V turns on then screen goes blank and shuts off

Does the power light stay on? If so, you have an inverter problem. If the power light goes off, you have a power supply problem.

SOURCE: AWA LCD TV - Blank screen (with sound) - picture appears for a few minutes

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SOURCE: MAG Innovision LT1919WDb flat screen goes black

When a monitor works for a few seconds or more and goes black it is a problem with the power inverter board over heating because of a bad capacitor or capacitors that are not the right size. There is no problem with the VGA controller since it shows video for a few seconds. I have fixed a lot of Mag LCD monitors with changing just two small capacitors for $0.50 a piece and some of my time to solder them in. Less time as i have gotten better. You can buy the capacitors on Mouser Electronics Online. Just make sure they are the right size and dimensions. I have one of these monitors on my table now and have not determined the exact capacitor that is the issue. I have change five out and it is still doing the same. Four more to go. None of the capacitors looked bad, thus the prcess takes longer. Good Luck