I have tried using excessive ground and I think I am...? I am giving the chip 3.34v and the 12+ pin only 5v. I am also powering the whole LCD module off of 5v (reading as 5.4v on multimeter).you do not need to feed 12v power to the board for VGA or Component.
only feed it 3.3v power..
12v power is reduced on the board to 5v.
The MX chip controls the delivery of 5v or 0v to the "black" pad.
The "black" pad is the D-terminal connection data line which signals the TV to display video as interlaced or progressive.
0 V = 59.94i / 60i
5 V = 59.94p / 60p PIN 20 appears to perform some internal switching:
1. GC powered off...PIN 20 = ~9K ohm
2. bootup and "progressive mode YES NO" message displayed (interlaced)...PIN20 = ~80K ohm = 0v
3. once "YES" is selected, the chip will output progressive scan video and provide signal to D-Terminal...PIN20 = open = 5vonce again, 12v power is only required for D-terminal connection.
save some space and troubleshooting by getting rid of that wire.
Also, just to add further info, without 12v power connected to the board:
1. GC powered off...PIN 20 = ~15K ohm = 0v
2. Interlaced mode...PIN 20 = ~40K ohm = ~0.039v
3. Progressive mode..PIN20 = ~730K ohm = ~0.695v