Just need to remove Q502 and wire the 5v to the large pad, hook up the USB charge input to the rear pin of the dc adapter (I wired it around the board, but you can just remove the grey silicone and connect to the pin) and the ground goes on TP510.
![](https://i.imgur.com/clxdPzH.png)
Very nice work
MasterofBiscuits ![Thumbs up :thumbsup:](https://www.pcenginefans.com/forum/Smileys/default/icon_thumbsup.gif)
I am modding a PC Engine GT and have a couple of questions if you have a moment to spare and help out:
1) I have tried wiring the stock brightness wheel to the LCDDRV board as described in this thread, but it did not work very well, and in the end it fried the fuse on the GT motherboard. I was going to give up on this part of the mod, but just noticed in your photo above that you are using some resistors to wire the stock brightness wheel? does this work better, would you have any info to share? I do not want to risk that the person for whom I am modding the GT ends up frying the fuse again, so I hesitate to hook up the stock brightness wheel if it is not reliable/safe.
2) for the LEDs could you please share what values you are using for the current limiting resistors? Also, I suppose that you drilled a little hole on the shell for the second red/ orange LED?
3) you mention that you use a USB cable for charging. So charging at 5V? The original charger for the GT is 7.5V so I suppose it is out of question to use the original charger
![Naughty [-X](https://www.pcenginefans.com/forum/Smileys/default/eusa_naughty.gif)
at the risk of frying the Adafruit Powerboost?
Thanks in advance for the advice/answers!
![Smiley :)](https://www.pcenginefans.com/forum/Smileys/default/icon_smile.gif)