Saturday, August 15, 2009

prophet VS LCD round II

im determined. the vfd is a swwet looking screen, but it sucks waaay to much juice and makes the vs freak out.... so i had 2 options: a different scree or a seperate poer supply. im opting or a different screen. led based backlite lcd. white letters on blue background.

i tried the sp12 with it nd found that its a fairly easy thing to do and kinda experimented on t before tryingto fuck with the vs more. sequenial was never know for its fantasticly sturdy PCBS or internal builds... so the less in and out and heating up those traces: the better.

so today i have to prep the lcd (do all the wiring pin outs etc and then do the jumps and resistr kluge and wire the pot for the contrast. then it comes time to remove that shit of display in ther and figure out how i have to cut the pcb behind the lcd pcbto make it fit. the prophet sand whiches the lcd in front of the switch pcb and behind the faceplate . very stupid design, BUT on the switch pcb, there is nothing *at all* behind it on either side of the pcb so you can safely and even if you will ..sloppily... make necceassry holes and cutouts. so im thinking i can cut out a hole for the metal case and display area of the new lcd. then mount the lcd to the switch pcb allowing the screen area to go thru the switch pcb and since its about twice as deep and the old one.. pretty much go exactly where it should.

possible issues: that there may be a trace or traces on the switc pcb that will be where the mounting needs to happen, or that there will be a single trace that runs trhu where the hole needs to go in for the screen. as far as i rememeber the filed behind the pcb is wide open more than enought to fit the screen thru. this will also make anyreplacement o the screen happen WITHOUT haveig to take our both solder linked switchboards. (stupide idea # 54 on the vs). it seems when they made the vs. it was quick and dirty. the serviceing design of it wasnt really thought of.. fantastic sounds. poor build design. but hey.. you cant have the world. :) they still made a timeless freak machine. thanks guys..

so anyway i'll take some pics and of the surgey and try to document everything i do. so hopefully someone may need to use it for their own VS.

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