TV RGB mod thread

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doofy77
Posts: 1
Joined: Sun Apr 28, 2013 6:09 am

Re: TV RGB mod thread

Post by doofy77 »

So, I attempted to mod my LG CA-21D33EX today, and was mostly successful, but the OSD Menu is now really dark.


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The OSD menu isn't completely black, just very dark and faint
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The AV2 is basically black
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This set has the MC-84A chassis. I followed the guide here: viewtopic.php?t=60010. I Installed the missing resistor at R557 with 510R, I also had a missing resistor at R234 75R which i installed as well. Instead of bridging J99, I installed a switch so I could switch back and forth between CVBS and RGB. I managed to change the required settings in the service menu but it was pretty difficult to see.

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Everything seems to work fine. I can switch between composite and RGB no problem but the OSD menu is almost unreadable.
It isn't just on the AV1 input though, it's on the tuner and on AV2.

Does anyone know what the issue could be?

It looks like the OSD is muxed after the jungle chip.
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I checked around the board for any missing components related to the OSD and found that C17 wasn't there. Should I put one there? Should it be the same value as C14, C15, and C16?
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