Video/Visual Guide - Brightness Control for LQ035NC111
Posted: Sun Mar 03, 2019 12:28 am
Hi all,
this is my first post and also guide, and I want to show how I managed to add a brightness adjustment to the LQ035NC111 screen that is fairly common among GBZ builders.
I found out that one of my screens had the smaller FPC ribbon part broken, and the small 2 wire part of the ribbon is for powering the LCD backlight. So to repair my broken screen i tore it down pretty much as far as you can go with the screen; but from this I experimented with the screen since I thought it was borked.
[youtube]https://www.youtube.com/watch?v=BSTuSFl ... e=youtu.be[/youtube]
What you'll need:
-Soldering Iron (Duh)
-Potentiometer of choice, Im using a 10K pot
Steps:
1. Remove the kapton tape that covers the 2 leads on the FPC connector
2. Desolder, with low heat, the positive lead. they are labeled on the FPC
3. Solder a positive wire from the FPC to Potentiometer (input)
Solder a positive wire from Potentiometer to the backlight connector (output)
Solder a ground wire from Potentiometer to FPC connector
now you should be able to roll the Potentiometer wheel to control the voltage coming into the screen.
currently working on a video that will hopefully be easier to follow, and will post a link when done.
This may be on the difficult side, but I have tested it out and it works very well.
Otherwise if you have questions, let me know, I am not very prominent on here but I check Instagram daily and you can connect with me there and check out my current Gameboy pocket RP3A+ build.
My handle on Instagram is: tymarbry
this is my first post and also guide, and I want to show how I managed to add a brightness adjustment to the LQ035NC111 screen that is fairly common among GBZ builders.
I found out that one of my screens had the smaller FPC ribbon part broken, and the small 2 wire part of the ribbon is for powering the LCD backlight. So to repair my broken screen i tore it down pretty much as far as you can go with the screen; but from this I experimented with the screen since I thought it was borked.
[youtube]https://www.youtube.com/watch?v=BSTuSFl ... e=youtu.be[/youtube]
What you'll need:
-Soldering Iron (Duh)
-Potentiometer of choice, Im using a 10K pot
Steps:
1. Remove the kapton tape that covers the 2 leads on the FPC connector
2. Desolder, with low heat, the positive lead. they are labeled on the FPC
3. Solder a positive wire from the FPC to Potentiometer (input)
Solder a positive wire from Potentiometer to the backlight connector (output)
Solder a ground wire from Potentiometer to FPC connector
now you should be able to roll the Potentiometer wheel to control the voltage coming into the screen.
currently working on a video that will hopefully be easier to follow, and will post a link when done.
This may be on the difficult side, but I have tested it out and it works very well.
Otherwise if you have questions, let me know, I am not very prominent on here but I check Instagram daily and you can connect with me there and check out my current Gameboy pocket RP3A+ build.
My handle on Instagram is: tymarbry