problems after changing the battery

The Yamaha SY99 is a synthesiser combining frequency modulation synthesis (branded as Advanced FM) and sample-based synthesis (branded as Advanced Wave Memory 2) and the direct successor to Yamaha's SY77/TG77

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Miks
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Re: problems after changing the battery

Unread post by Miks » Thu Jul 05, 2018 9:19 am

Hi organmastr, welcome to the Yamaha Musicians forum. (Y)

Hmmm - that's odd. Are the synth's batteries (2 pcs) still soldered to their pcb's or are they mounted in holders? If in holders I would try the following: turn the synth OFF, disconnect from mains, open it up and remove the batteries and short-circuit the holder's contacts for around 10 sec. using a tweezer/needle nose plier/short piece of wire. Put back both batteries, reassemble the synth and try to start it by switching it ON. Then try to run the reset procedure and see if this works...
My (key related) gear (in alphabetical order):
Kawai: K1 II
Korg: M1 (up'd to EX, w/ 'Cool Blue'), M1REX (w/ 'Cool Blue'), Poly-800
Roland: D-50, D-110, D-550, PG-1000
Yamaha: AW1600, DX7IID (w/ 'Cool Blue'), EX5R, RM50, RX5, SY99 (w/ 'Cool Blue'), TG500, TX-802, YMM2
Sector101: SYEMB05 (5x), SYEMB06 (3x), EXFLM2 (1kit), MCD Sweet16 (1x), WaveBlade 8MB Card (1x) & 1x Programmer Unit for WaveBlade


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