ok, here are my additions to the old crow/service manual instructions, those MUST be read first, as im not gonna repeat them. make sure you read all these over before starting, as #5 and #7 bears on the whole process:
(FIRST A DISCLAIMER-THIS IS TIME CONSUMING, FRUSTRATING, AND POTENTIALLY DAMAGING IF YOU DO NOT KNOW EXACTLY WHAT YOU ARE DOING. IF YOU HAVE THE LUXURY, HIRE A TECH. THIS IS ONLY FOR THOSE WHO DO NOT HAVE THAT LUXURY. IF THIS IS YOUR FIRST TIME TUNING A SYNTH, I WOULD ADVISE AGAINST IT. TUNE A ROGUE OR SOMETHING FIRST, THEN MOVE ON TO THIS. PLASTIC TUNING STICK A MUST. THIS IS IN NO WAY MEANT TO TAKE THE PLACE OF HIRING A TECH, THOSE GUYS ARE PROS AND KNOW WHAT THEY ARE DOING!!! BUT, OF COURSE, A CS80 IS AN EXCEPTION, AS SHIPPING IS NOT ALWAYS SENSIBLE. HENCE, MY 2 CENTS):
1-biggest thing for me-do NOT move on to octaves 4,8,16 until you are ABSOLUTELY sure that you got the SCALING right on octave 2. service manual explains this, its steps 8 and 9 i believe. you will just be wasting your time and have to go back and do it over. i did this wrong(didnt spend enough time getting scaling exactly right) and wasted an hour tuning voices i had to redo. do this as many times as you possibly need to until its right, then move on to other octaves. back and forth, C4 using top tiny little blue pot, the C1 using 2nd pot from top.
2- if you have a laptop, KATSURA makes a $15 strobe tuner plug-in. i used it, and its 100000000% better than the korg chromatic guitar tuners. completely worth it. do not use it as mic, use the line-in, preferably in ADDITION to listening.(dont think i could have done it without haviing BOTH).
3-i did ALL the voices with a strobe tuner INDEPENDENTLY, not tuning voice 1 osc 1 to voice 1 osc 2, but by only listening to each osc at a time. follow service manual instructions for panel settings, worked good for me. of course, ring mod/sub osc off. THEN, i lowered the voice board, and closed the hood. i left the machine on for 1/2 hr, and then did step #4:
4-using a graph chart, as well as the strobe tuner, i went through each voice(now using both oscs) and listened for dissonance/beats. when i got to a voice that had "beats"/was off, by flipping the mix pot up and down and looking at the strobe tuner, i could tell which osc was # or flat. i then wrote that down in my graph chart. so, under voice 3, osc 2, if it were off, i would put a symbol there. when i was done, i opened her back up, and went to those voices, and tuned by EAR for no beats.(the chart helps cause you want to make sure you are tuning the right osc, voice 1 in tune w/ itself does no good if its not in tune w/ voice 2.)
this gave me a surprisingly accurate tuning when i was done.
5-a word on voice 8. i did not know this, so i again wasted time on this and had to go back, but if you press and depress 1 key on a cs80 8 times, it will scroll through voices 1-7, and then start back at 7. it leaves voice 8 in reserve until you play it polyphonically. cause of this, i found it easiest to scale/tune all the voices 1-7 first because you can just push a single note. i used a twist tie, shaped it like a noose, and jammed it in between a key to make it stick. then i have both hands free to tune the osc. once 1-7 was done, i would turn it off, hit panel, hold down 1 voice, then hit another voice 7 times, release the first key, and voila-you are hearing osc 8 by itself. this is just what worked for me, you may have better luck with another technique.
6-actually, having 2 twist ties in noose shape was hugely helpful, cause if i ever needed to keep 2 keys depressed, this did the trick.
7-dunno if others have this experience, but my voices were not in the seats that the manual said they would be. for me, voice 1 osc 1 was somewhere around 24 or so, voice 2 osc 1 being 23, 22, 21,etc. voice 1 osc 2 was around 12 or 13, voice 2 osc 2 being ,11,10,9,etc. they were all in blocks of 8. but moved left to right, whereas the cards are labeled right to left. i put a big piece of masking tape across the bottom of the whole assembly and wrote out each voice in sharpie. this was hugely helpful as you are doing alot of looking back and forth, and having quick reference point is really helpful instead of counting up to 6 each time. ugh, that would have sucked.
naturally, you want to avoid temp fluctuations. i didnt have much problems with this, my voices seemed to be pretty close to the same outside//vs inside the hoode. but there are tips on the net about how to keep this at bay. REMEMBER, NOTHING METAL COMES NEAR ANYTHING RELATED TO A VOICE CARD/KAS BOARD/ETC. VERY IMPORTANT!! ENJOY!! GOOD LUCK!!(wow, a properly tuned cs80 is the most amazing synth experience ive ever had. 45 minutes will feel like 5, trust me-watch out for the wife!)
Quazimodo <
noddyspuncture@...> wrote: Yes please let us know what you'd have done differently, I'm
interested for one..;^)
Cheers
Tom
--- In yamahacs80@yahoogroups.com, rj krohn <r_j_d_2.phila@...> wrote:
....naturally old crows site has the most comprehensive resources, but
i think there were 1 or 2 things i would have done differently...let
me know guys if that would be of interest, or we could all pool any
helpful tips we've had.
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