Casio CTK-485 Service Manual page 3

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 Ω load each channel):
with key A1 pressed in Synth-Lead 1
Phone output level (Vrms with 8 Ω load each channel):
with key A2 pressed in Synth-Lead 1
Minimum operating voltage:
— 2 —
137 mA ± 20 %
710 mA ± 20 %
L-ch: 1,260 mV ± 20%
R-ch:1,200 mV ± 20%
L-ch: 93 mV ± 20%
R-ch: 90 mV ± 20%
6.0 V