Thursday, 22 March 2012

Lsdjmc2 mod




When I originally built the enclosure for my Lsdjmc2 I was using a game boy colour. Because I'm now using a game boy classic had to add an extra cable to the other side of the enclosure.
(the port on a DMG is not only a different size to a GBC, but it is also on the opposite side, something I should have thought about when I originally built it!)

Running an extra cable off the original link connections sorted it. Now I have the option of using a classic or a colour for my chiptunes.

One thing to watch when adding game boy link outs is shielding. When I first wired it I didn't use shielded cable internally and the audio picked up an huge amount of scan noise in between notes. I guess the link cables are heavily shielded for a reason!


Thursday, 15 March 2012

Amiga right-click-mouse-mod

A mod taken from the mssiah forum to enable right-click on an Amiga mouse.

Solder a 22k resistor between pins 7+9.

Job done!

Monday, 12 March 2012

Gameboy Mods




My latest modded LSDJ GBC - with the following 3 mods:

1 - 3.5mm stereo prosound line out.

Previously I've put in shielded cables that have dangled out of the GB to a 1/4 jack out, but no matter how careful I've been with them, the cable has always broken so the internal jack is a much better solution. I had to bend two capacitors out the way to make room for it.

2- Brand new screen from DJTRANSFORMER

Yeah, no more scratches!

3- DPDT toggle to switch between original crystal clock and 1 octave lower clock.

I bought a good quality switch that is able to flick between clocks whilst LSDJ is running without crashing. When used with LSDJMC2 to externally clock the tempo the lower octave clock affects the pitch only, which is very handy!

Things I might add

LTC1799 circuit for variable pitch. I think there's just enough room to cram it in...
Backlighting - necessary for live performances.