Service manual

85
ESS ES690
• 32 voices.
•
General MIDI instrument set - 128 melodic and 47 percussion.
• Chorus and reverb effects.
• Integrated general MIDI interrupt.
• MIDI serial interface.
• Supports 512Kx16 up to 8Mx16 ROM’s.
• No DAC required.
• Context upload for suspend/resume to disk.
• Automatic power-down when MIDI input is idle.
•
52 pin PQFP.