inject RGB into 90's TV

[bimm25e]

I'm not having any luck find information but I have an RCA tv and I opened the back up. the chassis is a F27242GY

I would like to try to inject RGB but I cant find any sort of schematic information. It looks like U101 is where I want to focus, would anyone happen to know what pins on what IC's I need to focus on to get RGb injected? Is there some kind of tool could I use to determine what pins are used for R G B and Sync inputs?

[lilshawn]

no number of the chip or nothing?

google the IC# for a datasheet. it will tell you what pins do what.

alldatasheet.com

[ed12]

a scope is the tool needed

second that is a hot chassic u need to isolate it
not a grand idea to tag in rgb sync to,
as the chip in question dose all the croma work,pedstal,horz drive,vert drive,horz high voltage shut down..
1 wrong move and u have a blown chassic

ed

[bimm25e]

shawn and ed, thanks for all the help over the past few days!  you guys are the sh*t