Vintage Synth Explorer Forums

Hi ,
Just got my hands on a SR-JV80-08 expansion board (Keyboards of the 60's and 70s) and installed it into my JV80 synth. Nowhere in the manual can I find exactly how to use it. Roland's online manual of the expansion board itself doesn't help me either.
This is what I've figured out so far by just schlepping around... If I first pick an internal voice at random, let's say " I-16" (Pan pipe), then I press the Patch/Play, EDIT button, then the "MIDI/Wave/LFO" button. Then I make my choices (on the L.E.D. screen menu) to "1---WAVE", the "Switch" field set to "On", the "Group" field set to "EXP" (expansion board). Then I cursor over to the far right of screen (the "No" field) and I can select and play the sounds from the board.
Is this how it's supposed to be done? Seems weird to me, and I swear I can still hear the "I-16" Pan pipe voice (from internal sounds) mixed in with the sounds off the Expansion board. Is this really the way this thing works?

Read the manual?

What a nice answer... As far as I can see clint3323 clearly states that the manual is checked...
I have the same question, expansion board -01 is installed and rechecked twice, but no reaction from the synth.
How to proceed?

I have just looked at the JV80 manual (I have a JV1080, which is somewhat similar) and there is no explanation as to how to play the Preset sounds from SR-JV cards, which is rather baffling. The 1080 has an EXP button on the front panel which, when combined with the A-D buttons, allows you to select patches from the SR-JV cards.

I think the procedure you describe to access the PCM sample from the card is correct. The reason you still hear part of the original internal patch is, I think, due to the fact that tones/patches are made up of up to four parts and you probably only changed the waveform for a single part. Select another part (1 to 4) from the wave part page using the buttons on the main panel and change the waveform (-2-- --3- ---4); repeat the process until you have changed all four.

I hope this helps.

You have to load the presets into the user memory - they aren't available from the front panel at all on the 80. From memory, I think it's in the utility menu - and you can only load 64 presets at a time, so EXP 1-64, EXP 65-128, etc, are the choices. If you have anything in the user area, save it first. The wave data is always available when you are editing patches, you don't have to load that.

Edit: you'll find it under: write mode/card