With all the parts available, assembly has commenced on the DMG front PCB+LCD kits. Here's a quick guide to installing this kit in your DMG.
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You will need to strip down your DMG so you can work with your front case half.
I used a set of verniers to mark a 3.5mm border around the existing window. You can use whatever you have available, sharpie and a ruler, blade etc.. Aqw chaos dmg weopons.
This will be a guide for when you enlarge the window. I used a CNC router to give a straighter edge. In future I will generate a Gcode file to automate this and give a neater edge. You can use a rotary tool, knife, file etc.. Edit: Use a metal file for straight edges!
On the back side you will need to remove the upper two support posts, and the ring around the LED hole. Make these as flush with the surrounding case as you can. Dmg mysecurebill com.
These are the main parts of the Kit, Only the LCD and PCB is included. You will need to re-use your old buttons/speaker/screws. https://ugeuewd.weebly.com/blog/maxace-dmg-for-sale. The LCD will arrive lightly taped to the PCB. You will need to center your LCD in the newly cut front case. This is how you do it.. https://ugeuewd.weebly.com/blog/mac-os-x-install-download.
Plug the ribbon into your mainboard and turn the gameboy on. It is best to use a game with a full border for precise location. I used Pokemon as it was on my desk.
Notice the double sided tape I stuck on the inside of the front case half. Gently lift the LCD while on and place it against the tape as center as you can. Before you do this, remove the LCD protective film. Take care in handling the screen once you remove this as fingerprints are tricky to remove and annoying to look at while playing.
Once you are happy with the location, place the front PCB in the case, install the speaker and the buttons/membranes and screw down any holes with the white ring around them. I suggest you don't use the remaining two screw holes as the screws will push through the front case into the screen protector.
If all went well, you should have a bright new LCD in your DMG, nice and centre. You can now install your Kitsch-Bent glass screen protector to keep fingerprints off the LCD.
![Replacement Replacement](/uploads/1/3/4/3/134378737/711038199.jpg)
Each LCD is paired to the PCB. The firmware is modified to generate the optimum contrast for each LCD. For this reason, every LCD and PCB is thoroughly tested and will arrive in working order.
Ribbon cables are delicate, please be careful!
You can also cut a piece of cellophane to place on the back side of the LED hole to colour the white light that shines through.
I was inspired by the many Game Boy Zero builds on You Tube, but one in particular where the user used an original Game boy cart to house the micro SD card. I give the user props for a good functioning build, but with my ability to design PCBs and some more knowledge about getting hardware working I set out to build my own. My project is all working in prototype form except for the audio at this point because i didn't buy an audio amp board for prototyping.What I did is design a set of custom PCBs to replace the original GB PCBs and clean up the project significantly. Even though i was capable of designing the battery charger and audio amp circuits myself, I took the lazy route and leveraged some readily available designs from Adafruit and copied the Layout and schematics into my project.
Specs,
Gameboy Dmg Screen Dimensions
Original Game Boy DMG-01 Case.
Custom Main PCB
Custom Cart PCB
Custom Button PCB with extra X - Y buttons.
Adafruit 3.2' SPI TFT screen
![Gameboy dmg screen upgrade Gameboy dmg screen upgrade](/uploads/1/3/4/3/134378737/371692585.jpg)
Mono 2.5W amplifier Circuit
2000mA hour LiPo Battery
Battery Charger circuit
Main PCB
Holds the Pi Zero in a cut out in the middle of the board. Bridges the Connections over to the Cart header for the Mircro SD card. Also bridges the required pins from the GPIO to the screen header. Has Micro USB port for charging. Has USB-A port for external devices. Holds the battery charger circuit and audio amp circuit. I will be using the basic PWM out gpio pin for audio. the audio on these games are pretty crude anyways. The battery connector sticks through one of the openings in the battery compartment with some modification to the opening. I decided not to try to bring out the HDMI port as it would have been very complicated and using a SPI screen the output of the HDMI is the same very low resolution of the built in screen. I am also using the extra GPIO pins for the buttons instead of using a USB device like the teensy. this eliminates the need for a USB hub if you want a USB port on the outside.
Cart PCB
replaces the cart board with a custom board that holds the Micro SD card. Replaces the card edge connector with a female 0.1 pin header. I will post pictures of the board layout software, but the actual implementation will become more clear once I have the boards on monday.
Button PCB
There were existing options for the DMG-01, but they only had A and B buttons, I used the super game girl board at first for prototyping, but it wasnt really designed for the DMG GB even though it was based on the original 2 button PCB--ABXY button pads didn't line up. I decided to make my own board specifically for the DMG GB with the extra X and Y buttons. I am selling the extra boards on Ebay. I received them today and have pictures.
http://www.ebay.com/itm/231974209588?ss .. 1555.l2649
Pictures and video.
Gameboy Dmg Screen Size
Video of GPIO mapped buttons and Adafruit screen working in Prototype form.Gameboy Dmg Blank Screen
https://www.youtube.com/watch?v=GM_RlXi .. e=youtu.be
Main board and Cart board Panelized (Layout Software screen shot)
Button Board PCB