Casio CTK-573, Service Manual

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Other Functions
Transpose: 25 steps (–12 semitones to +12 semitones)
Tuning: 101 steps (A4 = approximatery 440Hz
±
50Cents)
Terminals
MIDI Terminals: IN, OUT
Assignable Jack: Standard jack (sustain, sostenuto, soft, rhythm start/stop)
Headphone/
Output Terminal:
Stereo standard jack
Output Impedance: 66h
Output Voltage: 3.0V (RMS) MAX
Power Jack: 9V DC
Power Supply: 2-way
Batteries: 6 D-size batteries
Battery Life: Approximately 6 hours continuous operation on manganese batteries
AC Adaptor: AD-5
Auto Power Off: Turns power off approximately 6 minutes after last key operation.
Enabled under battery power only, can be disabled manually.
Speaker Output: 2.0W + 2.0W
Power Consumption: 9V
7.7W
Dimensions: 96.1
×
37.5
×
14.3 cm (37 7 /
8
×
14 3 /
4
×
5 5 /
8
inch)
Weight: Approximately 5.3 kg (11.7 lbs)(without batteries)
ELECTRICAL
Current drain with 9 V DC:
No sound output
200 mA
±
20 %
Maximum volume 745 mA
±
20 %
with 10 keys from C1 to E2 pressed in French Horn
Volume: maximum, Velocity: maximum
Speaker output level (Vrms with 4
Ω
load each channel):
with key C1 in French Horn
Volume: maximun, Velocity: maximum
1750 mV
±
20 %
Phone output level (Vrms with 8
Ω
load each channel):
with key, G1 in French Horn
Volume: maximun, Velocity: maximum
150 mV
±
20 %
Output level (Vrms with 47
Ω
load each channel):
with key F1 in French Horn
Volume: maximun, Velocity: maximum
1800 mV
±
20 %
About General MIDI
General MIDI standardizes MIDI data for all sound source types, regardless of manufacturer. General MIDI
specifies such factors as tone numbering, drum sounds, and available MIDI channels for all sound sources.
This standard makes it possible for all MIDI equipment to reproduce the same nuances when playing
General MIDI data, regardless of the manufacturer of the sound source.
This keyboard supports General MIDI, so it can be used to play commercially available pre-recorded
General MIDI data and General MIDI data send to it from a personal computer.