First order of business in an endeavor like this is to see if completion is possible, and if possible, financially responsible. Do not overlook this. Imagine if I did all the work I propose to do, spent all the money on missing parts and all 12 of the $40 – $60 a pop voice/filter chips were bad. That said, near as I can figure there are two parts you can’t readily buy or make yourself: IC’s IR3R01* and IR3109. There may be other dear chips in this machine but it shares these two with the mighty I’m-gonna-have-to-get-me-one-someday Roland Jupiter 8. If more than one of the combo of 12 of these chips is bad in your Juno 6/60, you might as well buy a parts machine or part out your machine.
How do you answer whether it’s a good idea to undertake the endeavor? I looked my sad, sad synth over and compared a picture like this from eBay:
to mine: Yer gonna have to click more to see!
Looking at the two I need ‘manual’ and ‘write’ buttons, some keys and some slider caps.
I tested it when I bought it and everything worked (voices/filters/presets) so it really is a matter of finding and installing parts and a little cleaning and creative fixing of unacceptable cosmetic blemishes. So from doing these comparisons I made this shopping list:
- 11 white keys (roughly 2 of each) with springs
- 8 Black keys with springs
- About 20 key bushings
- 2 three position toggles
- 2 two position toggles
- 18 slider caps
- 3 slider potentiometers (1 1M/2 50K)
- 3 wave form button caps (white/yellow/orange)
- 1 transpose button cap
- 2 momentary switches ‘manual’ and ‘write’
- 1 pitch bender disk
- 2 rubber feet
- Volume knob
I put all this stuff on a spreadsheet, went on the internet and figured out a cost. $245 plus about $30 shipping (I can provide sources if you want). For argument I’m going to add $50 in unforeseen expenses like capacitors, solder, touch-up paint etc. Next I went to eBay and figured out a good average price/condition for a Juno 60.
This complete, nice example sold for $860 recently, several similar machines made similar money. I doubt I can make mine this nice, but you never know. I am going to add $100 to the value as the buyer in most cases is paying $100 in shipping.
So my budget is $960 minus the $200 I’m into the Juno 60 (gas/time/ATM fee etc). That leaves me $760 I can spend. Take $325 in parts/supplies from that and I can spend $435 in labor on this. What’s my time worth? I’m about to find out.
‘But wait’ you are thinking. I can pay myself $20/hr to doing a bunch of skilled labor, making $435 total OR I can take this baby apart, get that $50 per chip, eBay off the rest and MAKE $500 – $600 profit on my $200 investment -essentially paying myself about $100/hr to take it apart, list stuff on eBay then go to the post office.
This is where the I/me in the equation comes in. I like working with my hands, especially when there is a challenge to overcome. I like recycling stuff that has intrinsic value and what has more intrinsic value than a musical instrument? I like hunting for parts all over the eWorld. And best of all -I like playing synthesizers!!
There you have it. It is, in my opinion, based on my personal value set worth fixing this synthesizer.
Up next: Taking it apart!
*Footnote of note: Sharp makes a chip with part number IR3R01. This is a totally different chip from the Roland IR3R01. Don’t waste your money!!