Re: Diagram of ground wire needed -- Pianocorder Forum

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Subject: Re: Diagram of ground wire needed

Author:
Roger Dalziel

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Date Posted: 10:46:22 07/09/03 Wed
In reply to: Jan 's message, "Diagram of ground wire needed" on 20:50:44 07/03/03 Thu

Only three points are grounded on an upright piano. They are the piano plate (the harp), the rail on which the solenoids are mounted, and the power supply frame. (The green wire from the power cord is, of course, the grounding conductor.)

There may be a system ground plate attached to the power supply to which the power cord ground is attached as are two green ground wires. The short green wire connects to the piano plate and the longer green wire goes to the right-hand (treble) end of the solenoid mounting rail.

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