Continuing from a previous thread: Sceadwian, i am just looking for a normal screen output. That is a "suspect VGA card" in a test PC. PC is booted and i look for an output (at the moment i look at a connected LCD monitor). But its not the best option, to carry a monitor everywhere as if my monitor were a briefcase - LOL !
So these H and V sync pulses - do they carry positive DC volts ??? If that be the case, does that not come close to the answer ? Have a look at my crude ansi diagram below:
R++++++++++++++++++++++
G+++++++++++++++ LED3
B++++++++++ LED2 -
LED1 - -
Ground(-)--------------------
LED4 -
H++++++++++++ LED5
V+++++++++++++++++++++
If all LEDs light up, the VGA output should be okay ?
For other persons reading - i am trying to create a simple VGA output test device that hooks up to a VGA adapter port (Omit VGA monitor). It just looks for live signals necessary for a normal VGA operation. So far Sceadwian has been kind to offer some advice.
So these H and V sync pulses - do they carry positive DC volts ??? If that be the case, does that not come close to the answer ? Have a look at my crude ansi diagram below:
R++++++++++++++++++++++
G+++++++++++++++ LED3
B++++++++++ LED2 -
LED1 - -
Ground(-)--------------------
LED4 -
H++++++++++++ LED5
V+++++++++++++++++++++
If all LEDs light up, the VGA output should be okay ?
For other persons reading - i am trying to create a simple VGA output test device that hooks up to a VGA adapter port (Omit VGA monitor). It just looks for live signals necessary for a normal VGA operation. So far Sceadwian has been kind to offer some advice.