I have this Atari ADI AGM-20M monitor. It is Atari Part No. 139012-1006.
I ordered the Bob Roberts cap kit for the DISCO AGM-20M and started capping this bad boy.
About 1/4 of the way in, I realized something was wrong. Stuff was not lining up. At this point, I already replaced a bunch of caps. I stopped and decided to just replace the caps I could match. Well, it looks like I replaced some with wrong value caps. I have a huge mess on my hands.
I stopped working on the monitor and now I have slight vertical collapse. This monitor does not match the AGM-20M manual I found here:
http://arcarc.xmission.com/PDF_Monitors/Atari Monitor TM-210 2nd Printing Disco 19in.pdf
This monitor manual is for the 139003-1006. Mine is 139012-1006. It's almost the same but it is different. The biggest difference is the RGB driver knobs (on mine) are on the chassis, not the neck board. The only pot on the neck board is for brightness.
I have searched google high and low. What the hell monitor is this? Anyone know? Where there two variation of the AGM-20M????
A cap map for this monitor would be a god send right now. I screwed this thing up and am not sure what to do next.
I ordered the Bob Roberts cap kit for the DISCO AGM-20M and started capping this bad boy.
About 1/4 of the way in, I realized something was wrong. Stuff was not lining up. At this point, I already replaced a bunch of caps. I stopped and decided to just replace the caps I could match. Well, it looks like I replaced some with wrong value caps. I have a huge mess on my hands.
I stopped working on the monitor and now I have slight vertical collapse. This monitor does not match the AGM-20M manual I found here:
http://arcarc.xmission.com/PDF_Monitors/Atari Monitor TM-210 2nd Printing Disco 19in.pdf
This monitor manual is for the 139003-1006. Mine is 139012-1006. It's almost the same but it is different. The biggest difference is the RGB driver knobs (on mine) are on the chassis, not the neck board. The only pot on the neck board is for brightness.
I have searched google high and low. What the hell monitor is this? Anyone know? Where there two variation of the AGM-20M????
A cap map for this monitor would be a god send right now. I screwed this thing up and am not sure what to do next.


