I found the manual to be clear concise and complete. It was of immense assistance when removing the unit as the unit was over 22 years old and the wiring diagram was unobtainable from the manufacturer. The exploded drawings were clear as were the instructions and labels.
This manual was very good & was very helpful with repairs.
Always great & fast service from Owner's manual.
Text excerpt from page 3 (click to view)
ELECTRICAL
Current drain with 9 V DC: No sound output Maximum volume with white keys C1 to G2 pressed in Synth-Lead 1 Volume: maximum. Speaker output level (Vrms with 40 � load each channel): with key A1 pressed in Synth-Lead 1 Phone output level (Vrms with 8 � load each channel): with key A2 pressed in Synth-Lead 1 137 mA ± 20 % 710 mA ± 20 %