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Pin 5 of IC is the 5V output.
pdf download free CXAS datasheet & applicatoin notes – Datasheet Archive
Tue Sep 19, Looks like I removed the original. There is a noticeable difference in the picture. You’ll have a hard time finding them cheaper anywhere else. I know I’ve been mistaken about the need for diodes before but this seems like maybe a good spot. Thu Sep 21, 2: So I tried a proper OSD hack on these units and yep, black is as black as midnight. Remember to terminate your RGB lines console side with 75ohm resistors, I usually do it on the scart connector Many of the rear inputs are make or break connections, the TV will only allow sync or audio to pass through if there are plugs in the sockets.
Not crossing my fingers though. I’ll try feeding the sync directly to the jungle IC. Any case CXAS looks to be the same pinout for what we need. On my rgb modded sony trinitron kvfs the color control and hue on the osd is disabled when I use rgb but the other controls work just fine like brightness and picture,you guys think it’s hardware or software as would like to re-enable them.
It’s mostly working but the blacks are grey. Well the parts came in and I done datahseet the thing. Thu Sep 21, I cant remember if before the clamping caps or after is best.
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum. Mon Dec 31, 1: The legs of these caps furthest away from the chip are should be an appropriate “snipping point” where you can disconnect the OSD RGB by desoldering and later inject your own RGB.
Wed Sep 20, 5: Below is a summary of how I wired things and the troubleshooting steps taken datasyeet Mark OZ was connecting 75 ohm termination resistors and the chassis already had ohm termination resistors. You don’t need a switch for this set, just 75ohm terminations, n caps and 5v to blanking.
Yeah I was totally wrong, you get I’ll try small diodes off the OSD clamping dqtasheet and maybe remove OSD terminations to restore it a bit and report back. Previous topic Next topic.
CXA2139S Datasheet PDF – Sony Semiconductor
Cheering you got it working. Thanks for the response man!
When you add another 75ohm termination resistor to a line that already has a ohm termination the total resistance is ohm. It leaves me confused as to why there is an issue.
What technique did you use to do the mod? No doing the hack bypasses that. Users browsing this forum: Remove the leg of each n capacitor OSD side of the pins, keep the leg that goes directly to the jungle in place these lifted legs are your main RGB in, centre switchand wire your OSD lines to the holes.