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2008-11-29 by Heath Finnie
I'm now getting very high picthes on most keys across the keyboard on every preset and channel. I noticed in checking the votages on these two boards (KAS and SH) that my readings are supposed to be in the 1xx.xx millivolt range with the lowest C depressed, but my readings are upwards of 4-8 volts. The power supply is putting out what it should as well.
2008-11-29 by Heath Finnie
For instance, on reference voltage I'm supposed to be getting 4.0 volts, I'm getting 13.46 volts!!! --- In yamahacs80@yahoogroups.com, "Heath Finnie" <heathfinnie@...> wrote:
> > I'm now getting very high picthes on most keys across the keyboard on every preset and > channel. I noticed in checking the votages on these two boards (KAS and SH) that my > readings are supposed to be in the 1xx.xx millivolt range with the lowest C depressed, but > my readings are upwards of 4-8 volts. > > The power supply is putting out what it should as well. >
2008-11-29 by rj krohn
what's the biggest value cap in the PSU? i dont remember. 1000mfd/35v? when i did mine, im 99% sure i bought all caps at mouser. i just bought 10,000mfd/25v at mouser this week, so im betting its a search mistake/glitch or something. --- On Sat, 11/29/08, Heath Finnie <heathfinnie@...> wrote:
From: Heath Finnie <heathfinnie@...>
Subject: [yamahacs80] Re: Very high voltages on the KAS and SH boards on CS-80
To: yamahacs80@yahoogroups.com
Date: Saturday, November 29, 2008, 3:42 PM
For instance, on reference voltage I'm supposed to be getting 4..0 volts, I'm getting 13.46
volts!!!
--- In yamahacs80@yahoogro ups.com, "Heath Finnie" <heathfinnie@ ...> wrote:
>
> I'm now getting very high picthes on most keys across the keyboard on every preset and
> channel. I noticed in checking the votages on these two boards (KAS and SH) that my
> readings are supposed to be in the 1xx.xx millivolt range with the lowest C depressed, but
> my readings are upwards of 4-8 volts.
>
> The power supply is putting out what it should as well.
>
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