SEGA Game Gear Custom FLASHCART – Electronics & Programming – Part 3



PART #3 0f 5 —————-
This is an Instructional video that I’ve made to show hobbyists how to build a Programmable FLASH cartridge for the Vintage SEGA Game Gear.

This will allow you to execute your own assembly code or custom Game files on the Game Gear itself.

Soldering & De-soldering techniques are shown and I have also provided a 26 page “Step by Step” guide in PDF format for you to download. It contains detailed Procedures and several photographs of the building process for building a compact version of my Flash cartridge. I have also produced a Full schematic and a PCB layout for those of you who have a little more experience in the Electronics field; and wish to etch your own board together.

However, the Procedures I have laid out in the video and in the PDF guide may be more appealing to many of you, due to it’s compact design.
I hope you all enjoy this DIY project that I have laid out here for you to try. :)
It was a long haul but such a blast! :)

You can Download all of the required files & documentation off my Website at the link shown below:

http://www.digital-circuitry.com/GameGear.htm

(My site is under construction so please excuse the crudity of the layout)

Also, if you’re having trouble and want to coordinate with other Hobbyists that are working on Similar GameBoy/Sega Game Gear projects, please join the GAMEBOY ELECTRONICS YAHOO GROUP that I have started up. This is to help everyone with their GAMEBOY/Game Gear related development projects.

JOIN THE GAMEBOY/Game Gear ELECTRONICS YAHOO GROUP TODAY!!

http://groups.yahoo.com/group/GAMEBOY_Electronics/

————————————————————————————-
COMPONENTS & TOOLS REQUIRED FOR THIS PROJECT:
————————————————————————————-

-SEGA Game Gear Game Cartridge with a 32 pin ROM chip
(512Kb size game)
ie. “SONIC THE HEDGEHOG 2″

-Sega Master system (SMS) Game cartridge with the 315-5235 Mapper chip.
ie. “AFTER BURNER”. You can also use the SMS cartridge “Phantasy Star” if your Code requires the use of a RAM Chip. However this PCB is larger in size.

-32 Pin DIP format “Leaf Socket”
eBay link shown below:

http://cgi.ebay.com/NEW-10-x-32-pin-DIP-IC-Sockets-Adaptor-Solder-Freeship-/220662481234?pt=LH_DefaultDomain_0&hash=item3360824152

- 32 PIN ZIF Socket
Ebay Sale Link:

http://cgi.ebay.com/32-pins-Universal-ZIF-DIP-IC-test-Socket-2-pcs-Pack-/320461207907?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item4a9cf9f963

DIP-32 to PLCC-32 chip adapter.
(In case all you have are PLCC-32 format flash chips)
You can wire one up yourself by using an extra 32-Pin Leaf socket and a 32-pin PLCC socket. See the links below for parts.

- 32 PIN PLCC Socket.
Ebay sale link:

http://cgi.ebay.com/4-pcs-PLCC-IC-Socket-SMT-Type-32-pins-/140326163649?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item20ac1754c1

-32 Pin DIP package Leaf sockets
eBay link shown below:

http://cgi.ebay.com/NEW-10-x-32-pin-DIP-IC-Sockets-Adaptor-Solder-Freeship-/220662481234?pt=LH_DefaultDomain_0&hash=item3360824152

- 30 AWG insulated Wire:
Ebay Sale Link:

http://cgi.ebay.com/30-ft-Green-Kynar-wire-wrap-wire-30-awg-modding-/250518626750?cmd=ViewItem&pt=Video_Games_Accessories&hash=item3a5412e1be

- ATMEL PLCC FLASH CHIP AT49F040
Ebay Sale Link:

http://cgi.ebay.com/10x-Atmel-AT49F040-90JC-4Mbit-Flash-Memory-/130339119119?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item1e58d1200f

-A single 47uF 16 volt Electrolytic capacitor.

- WILLEM Universal Programmer with PLCC 32 PIN socket.
Ebay Sale Link:

http://cgi.ebay.com/NEWEST-Willem-EPROM-Programmer-PIC-BIOS-Shipfrom-USA-/310127719656?pt=LH_DefaultDomain_0&hash=item48350d74e8

TOOLS REQUIRED:

- Soldering Iron with Fine tip for SMT soldering.

-Copper wire Sponge Ball for proper cleaning of your soldering Iron Tips.
(This is Highly Recommended)
eBay Link below:

http://cgi.ebay.com/Soldering-Iron-Tip-Cleaning-Wire-Sponge-Ball-/350408279498?pt=LH_DefaultDomain_0&hash=item5195f605ca

-Wire Wrap/Strip tool (For stripping “30 AWG” wire.
See eBay store: http://stores.ebay.com/Goodtronic

- Magnifying Lamp (Recommended)

- Spool of Solder (Flux core is ok too)
Steer clear of “Lead Free” solder it’s very messy,
(This is just my personal preference so use your own judgment).

- Solder Wick
- Rosin Flux Solution with Brush Applicator (125ML Bottle)
- Isopropyl alcohol (16 Oz Bottle)
- Cotton Swab Applicators (Q-tips)
- Standard Electric White Glue Gun
- Dremel Tool Cutter for Precise cutting of Cartridge Enclosure
- PC Computer with USB or Printer Port for Running Willem Software

That’s It Folks,
Enjoy!


Post time: May-27-2017

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