Casio CTK-620L, Service Manual

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ELECTRICAL
Current drain with 9 V DC:
No sound output
200 mA
±
20 %
Maximum volume 1090 mA
±
20 %
with 10 keys from F1 to A2 pressed in French Horn
Volume: maximum, Touch response: maximum
Reverb: stage
Speaker output level (Vrms with 4
Ω
load each channel):
with key C1 for R-ch, F1 for L-ch in French Horn
Volume: maximun, Touch response: maximum
2300 mV
±
20 %
Reverb: stage
Phone output level (Vrms with 8
Ω
load each channel):
with key C1 for R-ch, F1 for L-ch in French Horn
Volume: maximun, Touch response: maximum
180 mV
±
20 %
Reverb: stage
Output level (Vrms with 47
Ω
load each channel):
with key C1 for R-ch, F1 for L-ch in French Horn
Volume: maximun, Touch response: maximum
2600 mV
±
20 %
Reverb: stage
Minimum operating voltage: 6.3 V
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.
Power jack 9 V DC
Power supply: 2-way
Batteries: Six D-size batteries
Battery life: Approximately 5 hours continuous operation on manganese batteries
AC adaptor: AD-5
Auto power off: Turns power off approximately six minutes after last key operation. En-
abled under battery power only, can be disabled manually.
Speaker output: 2.5 W + 2.5 W
Power consumption: 9 V --- 7.7 W
Dimensions (HWD): 96.1
×
39.1
×
14.4 cm (37 7/8
×
15 3/8
×
5 11/16 inches)
Weight: Approximately 6.0 kg (13.25 lbs) (without batteries)