Retrostone screen

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KimDEa
Posts: 6
Joined: Sun 12 Aug 2018 04:26

Re: Retrostone screen

Post by KimDEa » Mon 8 Oct 2018 12:06

Brandon wrote:
Mon 8 Oct 2018 09:03
I've been working on modifying the RetroStone screen. I replaced it with a 3.5in IPS LCD with an HDMI input. Here is a link to a short video (work in progress):

https://vimeo.com/293888297
Oh my god i really want this 🤩 this modding is difficult?

ruffnutts
Posts: 32
Joined: Thu 13 Sep 2018 16:16

Re: Retrostone screen

Post by ruffnutts » Mon 8 Oct 2018 12:25

Yes... this is cool, I notice the scren is slightly smaller than the stock screen, this should not be hard to do at all Very interesting indeed 8-)

ruffnutts
Posts: 32
Joined: Thu 13 Sep 2018 16:16

Re: Retrostone screen

Post by ruffnutts » Mon 8 Oct 2018 15:56

Brandon wrote:
Mon 8 Oct 2018 09:03
I've been working on modifying the RetroStone screen. I replaced it with a 3.5in IPS LCD with an HDMI input. Here is a link to a short video (work in progress):

https://vimeo.com/293888297
How easy was it to do this mod, do you have anymore details about it?

ruffnutts 8-)

Brandon
Posts: 21
Joined: Sun 19 Aug 2018 15:49

Re: Retrostone screen

Post by Brandon » Mon 8 Oct 2018 16:30

Hi Ruffnuts,

The screen is a 3.5in Waveshare HDMI IPS LCD.
https://www.waveshare.com/3.5inch-rpi-lcd-a.htm

It is not exactly 4:3, it is a bit wider so not a perfect fit. This mod is a work in progress, I needed to remove the RJ45 jack and some of the USB ports to make room. I am using a WIFI USB dongle for network, there is most likely room to put back some of the other USB ports if I need to. The four holes on the left that show power and battery level are currently blocked, but I think I can make them work again.

The screen is powered from a 5V source that is on the RetroStone PCB. I still need to monitor how much power it draws.

This mod so far has been difficult. I had to remove the screen from it's control board and cutdown the control board to make it fit. I also had to cut away some plastic to make the screen fit, it is a bit wider then the stock screen. Once the screen was removed from the control board, I had to extend a flat ribbon cable to get it to reach again. I replaced the small heatsink on the RetroStone and the display with larger copper heatsinks.

The biggest problem is heat, I need to leave the system on for a while and monitor the heat load. I do not want to install a fan.

ruffnutts
Posts: 32
Joined: Thu 13 Sep 2018 16:16

Re: Retrostone screen

Post by ruffnutts » Mon 8 Oct 2018 17:52

Ok seems like a lot of work, I think that's the same screen they use on Game HAT waveshare make 8-)

thanks for the info, tutorial would be cool :D

jutleys
Posts: 24
Joined: Sat 25 Aug 2018 10:51

Re: Retrostone screen

Post by jutleys » Sat 13 Oct 2018 11:15

@Pierre is there any work around to switch the hdmi inputs so we can use on the lcd screen and tv out uses analog?

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