Casio CTK-2550 User Manual

EN-6
General Guide
3. When the parameter you want is displayed, use bm (10-key) to change its setting.
• The tone and other parameters revert to their initial defaults whenever you turn on power. The main volume, and Tuning, LCD
Contrast, and Auto Power Off settings are automatically saved and retained when power is turned off.
• You can use the [+] and [–] buttons to input a value to the right of a decimal point.
To specify 442.2 Hz, for example, first use the number buttons to input 4 3 4 3 2. Next, press the [+] button twice.
14 LCD Contrast Contrast Adjusts display contrast.
1 to 12: A larger value makes the display contrast darker.
15 Auto Power Off APO Setting that controls whether or not the Digital Keyboard turns off automatically
after a period of non-use.
oFF: Auto Power off disabled.
30: The Digital Keyboard turns off automatically after 30 minutes of non-use.
br key
presses
Parameter Display Description
CTK2500-ES-1A.indd 8 2016/07/26 16:32:05

Casio CTK-2550 Specifications

General

Control type	Buttons
Backlight buttons	No
MIDI-keyboard number of keys	61 keys
Product color	Black, White
Sound effects quantity	400
Maximum polyphony (notes)	48
Music memory capacity (songs)	30
Interface	-
Headphone outputs	1
Battery type	AA
Power source type	AC, Battery
Number of batteries supported	6
Cables included	AC

Weight and Dimensions

Depth	307 mm
Width	945 mm
Height	91 mm
Weight	3311 g