MATRIXSYNTH: Custom White Roland JX-8P w/ PG-800


Tuesday, October 06, 2020

Custom White Roland JX-8P w/ PG-800

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This one was spotted and sent in via M Me.

Description in Googlish:

"CustomRoland JX-8P + Roland PG-800 + Roland M-16C Cartridge + Printed / Bound Owner's Manual.

Eprom OS 3.1

This JX-8P was in terrible condition when I got it (see last 4 photos), held together with wood screws, large scratches all around and a lot of rust on the front panel. Had 6 broken keys and the pitch bender was hanging loose.

The wood screws destroyed the inner bracket mounting holes that held the side panels together, so I had to drill these out and replace them with 5mm Allen screws, which looks pretty cool and gives the synthesizer back its stiffness.

Sanded the entire synth to bare metal / plastic to remove any remaining rust and scratches. On the bender panel, I filled in the holes drilled by a previous owner to hold the pitch bender.

Gave it a professional paint job in a contemporary light industrial gray that matches the buttons of the PG-800 and the industrial look of the JX-8P.

The PG-800 is built by myself with the original firmware / eprom. Potentiometers are from Alps and the knobs are from Sifam.

I made the graphics myself and are screen printed aka screen printing.

I bought an extensive screen printing kit so I can now print any design on any surface. I am satisfied with the result.

All keys have been cleaned and polished and the keyboard plays perfectly and the aftertouch works fine.

Also the light scratches on the display removed with a plastic polisher and that now looks like new.

All tacticle switches have of course been replaced with new ones :)

Getting this JX-8P back to its former glory was a lot of work, but I have to say it looks better than the original imho."

3 comments:

  1. Hey, can you point me to any schematics resources of the PG-800 or would you explaining in a greater detail how did you make it, please?

    ReplyDelete
    Replies
    1. Hey, schematic of PG-800 is inside the JX-8P schems, last pages...and ive made it with my hands on veroboard using the schematic....however you will need the correct PG-800 eprom and dac to make it function.
      br, Dennis at Matana Teknik

      Delete
  2. Hello, i’m not sure if you’ll ever reply to this, but I’m really interested to know a bit more about some of the steps in this process. I’ve just been given a horrible condition old JX8p Would like to do a similar thing. I definitely like to know how to prepare the surface and what sort of paint to use. I’d also like to know a bit more about the screen printing process! Thanks a lot

    ReplyDelete

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