[sdiy] Alpha Juno battery replacement

[Richie Burnett]

Just changed the battery in my Roland Alpha Juno 2 that was likely 40 years 
old!  The old Sanyo CR2032 coin cell looked fine from the top (+) side, 
measured 3.295v and hadn't shown any battery warning message on the synth's 
display.  In fact it's terminal voltage was higher than my brand new 
Panasonic CR2032s that both measured 3.278v.  However, when I de-soldered it 
the hidden underside was covered in tiny crystals and green crud (>.<) 
Looks like I got there just in time!  So, don't wait for the low battery 
message, or visible corrosion, and don't wait for 40 years before changing 
it!!!

For anyone with an Alpha or MKS-50 there's an excellent step-by-step guide 
here:

https://llamamusic.com/mks50/MKS-50_battery_replacement.html

-Richie,


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