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Yamaha SY85 power board 220v or 110v?
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maleksa
Senior Member
Join Date:
Jul 2017
Posts:
50
Country:
Malaysia
#1
Yamaha SY85 power board 220v or 110v?
07-01-2023, 08:49 PM
I need help to ascertain if the power supply on my Yamaha SY85 keyboard is 110v or 220v or both.
I have attached the schematics below.
Attached Files
R_J
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#2
07-01-2023, 11:07 PM
Re: Yamaha SY85 power board 220v or 110v?
What is the voltage rating on C11? From a picture I found it is 150µf/200v which would suggest the power supply is for 110v ac input only
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R_J
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07-01-2023, 11:11 PM
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stj
Great Sage 齊天大聖
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#3
07-02-2023, 05:15 AM
Re: Yamaha SY85 power board 220v or 110v?
does it have R3 fitted? i suspect that is used for 220-240v regions.
btw, typical japanese shit - they fitted the wrong fuse!
it should be ceramic for mains use - not glass
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maleksa
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#4
07-05-2023, 11:26 PM
Re: Yamaha SY85 power board 220v or 110v?
Originally posted by
R_J
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What is the voltage rating on C11? From a picture I found it is 150µf/200v which would suggest the power supply is for 110v ac input only
Yes it is rated at 200v. You are right, the power supply is for 110v AC.
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maleksa
Senior Member
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Jul 2017
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50
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#5
07-05-2023, 11:27 PM
Re: Yamaha SY85 power board 220v or 110v?
Originally posted by
stj
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does it have R3 fitted? i suspect that is used for 220-240v regions.
btw, typical japanese shit - they fitted the wrong fuse!
it should be ceramic for mains use - not glass
No R3 is not fitted. I have also got confirmation from another Yamaha SY85 owner that my keyboard model is for 110v AC.
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