DIY "snowblind" project

SmilesRising · February 4, 2019

Hi! im currently working on a diy "snowblind" project. a LCD-panel attached to the case-window. I've got the panel but i can't seem to get the electronics working. the screen is an old DELL E193FPp. The lcd requires 5v to be powered, im connecting the 5v on a molex connector and according to the schematics i could find it should be pin 12 and 13 for 5v. but when i connect my molex the whole thing shortens. The molex output roughly 5.15v and should be fine? any suggestions on why it shortens?

(pic is blurry but i can't find any with higher res)

Dell schematics.pdf

BobVonBob · February 4, 2019

I'm fairly certain the panel would require all of the pins to be connected, or at the least all of the pins providing voltages and ground, so 12V to pins 6/7, 3.3V to pins 9/10, 5V to pins 12/13, GND to 1/5/8/11. If you've got all the other boards, it might be worth considering just using some low power device like a Raspberry Pi to output to VGA and running the power cable for the LCD out of the case.

SmilesRising · February 4, 2019

2 minutes ago, BobVonBob said:

I'm fairly certain the panel would require all of the pins to be connected, or at the least all of the pins providing voltages and ground, so 12V to pins 6/7, 3.3V to pins 9/10, 5V to pins 12/13, GND to 1/5/8/11. If you've got all the other boards, it might be worth considering just using some low power device like a Raspberry Pi to output to VGA and running the power cable for the LCD out of the case.

i've got the "power board" but the cables are cut but i guess i could re-solder them. getting a raspberry pi for vga and such seem unnecessary since the screen would need to be powered using the controlboard? which has vga into it?

BobVonBob · February 4, 2019

2 minutes ago, smiles rising said:

i've got the "power board" but the cables are cut but i guess i could re-solder them. getting a raspberry pi for vga and such seem unnecessary since the screen would need to be powered using the controlboard? which has vga into it?

My reasoning for a second device to send an image to the panel is that if you have it controlled off your computer it becomes basically identical to if you had another monitor, meaning you could drag windows on to it, which could be neat, but could also be annoying.

SmilesRising · February 4, 2019

22 minutes ago, BobVonBob said:

My reasoning for a second device to send an image to the panel is that if you have it controlled off your computer it becomes basically identical to if you had another monitor, meaning you could drag windows on to it, which could be neat, but could also be annoying.

yeah the plan is just to have some effects running on it, like ibuypower has on ces and stuff! but i did this with other monitors and they powered on using only 5v but that was with a different board so i guess this board is different in its wiring