yet another display replacement (i.e power supply for +5volt)

Yamaha SY77 is a 16 voice multitimbral music workstation first produced by Yamaha Corporation in 1989. The SY77 is a synthesizer whose architecture combines AFM (Advanced Frequency Modulation) synthesis, AWM2 (Advanced Wave Memory 2) for ROM-borne sample-based synthesis, and the combination of these two methods christened Realtime Convolution and Modulation Synthesis (RCM).

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yet another display replacement (i.e power supply for +5volt)

Unread post by ledan » Thu Aug 09, 2018 7:35 pm


Planning to take the leap this weekend for my TG77 (as i did for my Sy77 eons ago, but where i can't remember the steps anymore :cry: )

Im i right to assume that i will take away the 2-pin power connector from the CN506 (from the inverter board. Or rather desolder it) and instead solder it onto the CN605 position to get the +5 volt needed for the BuyDisplay lcd?

(plus all the other things needed such as adding a VR for the backlight, etc as mentioned in the guides)


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Re: yet another display replacement (i.e power supply for +5volt)

Unread post by Derek » Fri Aug 10, 2018 5:17 pm


Details of what I did to my TGG, and where picked up the power, can be found here. I have no time right now to check the detail, but hopefully that will help you.

Good luck!
Derek Cook
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