/qchord

Hardware for the Suzuki Q-Chord

MIT LicenseMIT

Suzuki QChord Projects

Things that work with the Suzuki QChord, primarily a reproduction QCard that can be built with completely off-the-shelf parts.

qcard-multicart

You can get one as long as stock lasts at my Ko-Fi shop!

PCB rendering

A single cartridge that contains the entire Q-Card library, selectable by dip switches. The flash should be programmed prior to assembly, by concatenating the 4Mbit dumps you can find on archive.org.

qcard-tsop32

PCB rendering

A rewriteable reproduction QCard PCB using SMD components. The flash module uses a TSOP32 package. It can be reprogrammed after assembly with the programmer adapter below, and write-protected with a solder jumper

qcard-case

Case rendering

3d printable cases for the flash QCard and multicart QCard. Prints easily with FDM printers.

BOM:

  • 2x M3 screws

qcard-programmer-pcb

A cartridge adapter to allow programming the reproduction QCard after assembly. Optional but highly suggested for ease of use.

BOM:

  • 1x 36-pin (2x18) card connector slot, 2.54mm pitch
  • 2x row of 16 header pins, 2.54mm pitch

To program a flash QCard:

  • ensure JP1 is in the "program" position, that is, the middle and top segments are bridged by a solder blob
  • insert the adapter in a TL866 programmer with the front as indicated by the outline on the adapter, and insert the QCard with the parts side up as indicated on the adapter
  • program using XGPro with the SST39SF040-TSOP32 profile

qcard-dumper-pcb

Optional unless you are going to dump QCards. Very similar to the programmer PCB.

To dump an original QCard:

  • ensure that J401 is closed, J402 and J403 are open
  • insert the adapter in a TL866 programmer with the front as indicated by the outline on the adapter, and insert the QCard with the parts side up as indicated on the adapter
  • read using XGPro with the AT27C040 profile
  • there may be one or in some cases two undetected pins, which you can safely ignore