DJM500 - Modding

[chrisrawles]

Hi guys,

I have an old DJM500 which is perfect for home use. The only thing that bugs me with it is that you can only have 3 line channels.

DO any of you know if you can change the 4th fader from a phono to a line by simple changing the fader? or is there more to it than that?

cheers

[Ashigari]

you´d have to remove/change the pre-amp on the 4th channel from phono to line. the fader won´t change anything and I have no idea on how to do that

[Archies'bald]

If you have an NI Audio8 soundcard, it's possible to route the headphone out in to the sub mic on channel 4. It takes a little bit of fiddling with the volume levels but it does work. That's how I have my set up at home.

[djlotus]

In order to do this, you need to bypass the preamp circuitry on the board. After looking at the schematic of the DJM 500, the circuitry is a little more complex on the preamp side than I am comfortable with. Here it is if you need some reference to it. I highlighted the preamp circuit in red. DJM-500_RRV3107-4.jpg

[chrisrawles]

Cheers for the replies guys, I had a feeling it would require some soldering to do what i want. The Sub Mic work around is pretty cool and seems to be my best bet.

Other than that i guess i need to by a new mixer like the Xone 42/92.