sudomod

Hey guys! I just got my screen and are testing it.
I give it a 12v input but nothing displays, I'm wondering do I need any video input to let it display anything?

1461748123 wrote:Hey guys! I just got my screen and are testing it.
I give it a 12v input but nothing displays, I'm wondering do I need any video input to let it display anything?

Hey man yeah you do need a video input if your talking about the car rea rview display monitor. You will not notice anything until you have one connected. Also a lot of them have been 5v right out of the box. so check it with 12v but then also try with 5v. did you order from niceshopping?

Thatbraziliann wrote:

1461748123 wrote:Hey guys! I just got my screen and are testing it.
I give it a 12v input but nothing displays, I'm wondering do I need any video input to let it display anything?

Hey man yeah you do need a video input if your talking about the car rea rview display monitor. You will not notice anything until you have one connected. Also a lot of them have been 5v right out of the box. so check it with 12v but then also try with 5v. did you order from niceshopping?

Okay thanks!
I first try it with my powerboost but accidentally fried the led on it LOL I thought I broke both the powerboost and the monitor xD

Could it be that it's outputting to HDMI by default?

So yes, the display needs a input to show something:


Sadly.. this screen doesn't support 5v input might have to get a 5v to 12v stepper

1461748123 wrote:Sadly.. this screen doesn't support 5v input might have to get a 5v to 12v stepper

Don't be so quick about it.
Take a look for a certain IC that may be desoldered. The spreadsheet about collecting display information may help you here.
Most of those cheap displays have some kind of IC that does this, f you desolder it and solder on another wire, it mostly works fine.
Tried it on 3 differend screens now.

Do you have a good picture of the board?

Fleder wrote:

1461748123 wrote:Sadly.. this screen doesn't support 5v input might have to get a 5v to 12v stepper

Don't be so quick about it.
Take a look for a certain IC that may be desoldered. The spreadsheet about collecting display information may help you here.
Most of those cheap displays have some kind of IC that does this, f you desolder it and solder on another wire, it mostly works fine.
Tried it on 3 differend screens now.

Do you have a good picture of the board?

Yes I do, here you go :

Well, that's a new one.
You are missing one 8 legged IC. But the one you've got is unmarked, which COULD be a good sign.
At least depending on my experiences with other displays.
If you are eager to try it out, you can desolder it. But this might destroy your display!

Do you have a multimeter to measure which IC does what?

I'm guessing the 4 pin SOT-223 package near the yellow capacitor on the right side of the board.
Link to datasheet: http://www.advanced-monolithic.com/pdf/ds1117.pdf

Hi guys,
I have a question related to this and maybe you can help me with it.
I got a similar screen from amazon and I want to try it out. The controller board looks like this:

I am aware that in order to run it on 5V I would have to desolder an IC but I thought it would be useful to test it out before I did any soldering. I used an old 9V/500mA power supply which I had lying around and wired up the RCA output from the PI (yellow wire to the "square" outlet, white wire to the round one).
Unfortunately the screen did not display anything at all. I was expecting at least to see the backlight turn on but nothing at all.
I have two questions now:
Do you think that maybe the amperage of the power supply is simply too low?
Do I need to adjust any settings on the PI0 to get composite output?
Thanks in advance!