Vile wrote:

Quick question about keyboard modding, do the keyboards all have to have the PS/2 connection or would a USB one work? Just curious since I got a USB keyboard laying around and when I opened it up the circuit board had a layout of  V,G, D+,D- and the 5th wire was unlabeled. I also have a DMG-07 to use for this mod as well just for the heads up.

It has to be PS/2. USB doesn't use the same communication protocol as PS/2 and the DMG do.

Thanks DogTag, couldn't seem to find the answer anywhere else for some reason. Might have just skimmed over it maybe.

Quick question about keyboard modding, do the keyboards all have to have the PS/2 connection or would a USB one work? Just curious since I got a USB keyboard laying around and when I opened it up the circuit board had a layout of  V,G, D+,D- and the 5th wire was unlabeled. I also have a DMG-07 to use for this mod as well just for the heads up.

It has to be PS/2. USB doesn't use the same communication protocol as PS/2 and the DMG do.

I'm not around much these days, but I went to considerable trouble learning how to make DMG-04 to PS/2 adapter capables, so I'll try to get some informative pictures up in the near future when I have some time.

There's a lot of good information in my old LSDj keyboard thread, which was active when GoingHam and I got our first working LSDj keyboard setups together.

EDIT: here's a link to the specific post with information about the keyboard I've used successfully and like to use when making LSDj keyboards on commission.

Thank you GoingHam. Everything there makes sense, but still hasn't solved my problem.

I ended up doing the USB thing, and the keyboard does switch on, and at first I managed to make LSDJ say "I80" (I guess that the keyboard was somehow synced), but it wasn't working. Then, all of a sudden, it stopped displaying I80 and so I'm stuck.

I checked with my multimeter and with the male PS/2 connector that the connections were fine and so it seems! The only weird thing is that when I probed the "data" and "clock" wires of the keyboard on my oscilloscope, they were both in "high" state, and only went for the logic "down" when pressing keys, but both of them! I thought the clock would have a steady periodic "pulse" or something, and the "data" aperiodic signals when pressing keys... It's all weird.

What manufacturer of keyboard/ model# are you using?
The vast majority of ps/2 keyboards (atleast that I've run into) aren't LSDJ compatible.

You could use an instrument with L in its table for slides.

You can't put L in the tables, and you could in the older versions of LSDJ, but it did nothing.

I do not understand a single thing about the hardware stuff for Chiptune. I wish I knew. I'm a mixing and mastering kind of guy, more about plugins, effects, and the software. I don't know what to do with my DMG I just got today. It has a prosound mod, LSDJ, Play It Loud, and it's clear with a pink backlit screen. I got it off ebay. Hopefully it will do the trick and I'll be able to produce Chiptune a little better now than using Nanoloop and Milkytracker on my ipod, iphone, laptop, and gameboy.

I made the switch to hardware and LSDJ recently. I just don't understand a single hardware thing about soldering or the wires or anything. I feel dumb.

its ok i dont know anything either yet i still managed to back light my gameboy (it looks like shit though lol)

I made the switch to hardware and LSDJ recently. I just don't understand a single hardware thing about soldering or the wires or anything. I feel dumb. :(

I ended up doing the USB thing, and the keyboard does switch on, and at first I managed to make LSDJ say "I80" (I guess that the keyboard was somehow synced), but it wasn't working. Then, all of a sudden, it stopped displaying I80 and so I'm stuck.

I checked with my multimeter and with the male PS/2 connector that the connections were fine and so it seems! The only weird thing is that when I probed the "data" and "clock" wires of the keyboard on my oscilloscope, they were both in "high" state, and only went for the logic "down" when pressing keys, but both of them! I thought the clock would have a steady periodic "pulse" or something, and the "data" aperiodic signals when pressing keys... It's all weird.

Couldn't you just try the pin swap again with the other half of the spliced DMG04 cable rather then bringing a usb in the mix?

I thought about vcc through USB. Will then the ground on the DMG have to be connected to the ground of the keyboard and the ground of the USB?

I have the same cables with the same colours on mine, so I guess this is fine, but from what I've noticed, what they're doing there is swap the ground pin to 5v... Souldn't we be moving the Serial Out to the 5v instead? Or am I terribly confused?

There's still 3 wires that i don't have any idea how to connect, i guess i just have to try.
Or is there some way i could figure out which is which?

If the LEDs light up, you have the 5v right and did the pin swap properly. Ground is easy to determine, then that just leaves the data and clock signals to determine.

Or maybe the pins are marked with silkscreen on the board. G, VCC/V, D, C, etc...You can unscrew it to check, if you haven't tried that already.