Casio ML-3, Service Manual

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*Power ON Reminder
Power ON reminder is sudden audible and light signals, a short melody at maximum volume and lighting
up the illuminated keyboard for a few seconds.
Power ON reminder functions three minutes after the last operation, and it repeats every three minutes until
turning the switch off or restarting operations.
SPECIFICATIONS
General
Number of Keys: 32
Illuminated Keys: White and Black keys
Polyphonic: 2-note
Preset Tones: 25
Auto-Rhythms: 12
Demonstration Tunes: 10
Lesson Functions: 3 modes; Demo, Any-Key Play, Melody Guide
Built-In Speaker: 8.0 cm dia. 1.0 W Input Rating: 1 pce.
Terminals: Mic. Jack [Input Impedance: 20 k
Ω
AC Adapter Jack (DC 7.5 V)
Power Source: DC: 5 AA size dry batteries
Battery life: Approx. 4 hours (SUM-3/R6P)
AC: AC adapter AD-1
Power ON Reminder*: 3 minutes after the last operation
Power Consumption: 1.5 W
Dimensions: 57
×
412
×
208 mm (HWD)
(2-1/4
×
16-3/8
×
8-1/4 inches) (HWD)
Weight: 0.95 kg (2.1 lbs) excluding batteries
Electrical
Current Drain with 7.5 V DC:
No Sound Output
44 mA
±
20%
Maximum Volume 280 mA
±
20%
with keys B3 and C4 pressed in Flute tone
Volume: Maximum, Rhythm: Rock,
Tempo: Maximum, Mic. input: 29 mV
Speaker Input Level (Vrms with 4
Ω
load): 740 mV
±
20%
with key C4 pressed in Flute tone
Volume: Maximum
Minimum Operating Voltage: 6.2 V