> Keyboard is plugged into one of the emac's USB ports.
 The emac turns on & displays the mac face/flashing question mark indicating
 no system available, but the media eject button on the keyboard does not
 open the media tray as it should.

 Power is reaching the keyboard as I have the mouse plugged into a keyboard
 USB port & the mouse appears to be "live" (ie red light shining underneath).

 Am I missing something simple here?
 Or is it likely that either the keyboard or the media tray is
 > non-functional?

Hold down the mouse button while you turn the machine on and keep the button held down to see if the tray opens.

Alternatively try booting the machine with the option key held down and then see if you can use the eject key.

Also on the eMac if you can get your fingernail into the top crack of the drive you can pull the external door down to access the drive inside which might then reveal the internal eject button or the paperclip manual eject hole...

Good luck,
Shay
--
=========================== Shay  Telfer ================================
 Perth, Western Australia   Technomancer  The love of liberty is the love
 Opinions for hire              [POQ]     of others; the love of power is
 http://newtonslore.com/        fnord     the love of ourselves - Hazlitt

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