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Monitor Repair Log and Database. **Arcade and Gaming** => LCD and CRT Monitor Repair Tech Support => Topic started by: brewtoo on January 09, 2022, 08:01:16 AM

Title: G23 bottom half of screen is useless
Post by: brewtoo on January 09, 2022, 08:01:16 AM

Hello,

The bottom half of this G23 is all out of whack, the top is fine. The bottom is crazy with motion, flickering, etc.

Any ideas?

Thanks!

Title: Re: G23 bottom half of screen is useless
Post by: rickhunter on January 09, 2022, 09:10:50 AM

That is usually the A/D board inside the monitor, probably needs to be recapped.

Title: Re: G23 bottom half of screen is useless
Post by: brewtoo on January 09, 2022, 10:14:39 AM

Great! I’d love to repair this. Especially if it’s just capacitors. What does AD stand for and how would I identify the board? Thanks

Title: Re: G23 bottom half of screen is useless
Post by: Tilt on January 09, 2022, 10:19:57 AM

Analog/Digital converter.  It's the "brains" of the monitor.  You'll know which board it is when you get the back off.  It'll be the one the video connectors are on, or that the cables from the video connectors go to. 

Title: Re: G23 bottom half of screen is useless
Post by: brewtoo on January 09, 2022, 10:38:35 PM

I only see two electrolytic capacitors. Am I missing anything? Thanks

Title: Re: G23 bottom half of screen is useless
Post by: rickhunter on January 09, 2022, 11:08:54 PM

The number of caps varies with these monitors, but you should start by replacing the easy radial type caps, then if that doesn't fix it, you will need to replace the surface mounted solid state caps.