Casio CTK-80 User Manual

No sound from the
keyboard.
Power supply problem. | Check power supply.
e Are battery poles (+/—) fac-
ing correctly?
e Are batteries dead?
els AC adaptor connected
correctly?
MODE selector is set
to “FINGERED” and
accompaniment keys
are not pressed cor-
rectly (Fingered chord
with less than 3 notes
produces no response.)
No accompaniment
even if accompani-
ment keys are
pressed.
Press either 3 or 4 proper
accompaniment keys as
shown on page E-18.
Occasional
interference.
Refrigerators, washing
machines and similar
electric appliances.
Use outlet as far away as
possible from appliance
thought to be the cause.
Following symptoms
occur when using
batteries.
e Dim power supply
indicator
e Abnormally low
speaker volume
¢ Distortion of sound
output
° A totally different
tone may sound
e Abnormal rhythm
pattern and demo
tune play
e Continued sound
output even after you
release a button
¢ Occasional interrup-
tion of sound when
playing at high
volumes
e Sudden power failure
when playing at high
volumes
Low battery power. Replace the batteries with
new ones.
E-20
Avoid heat, humidity or direct sunlight.
Do not overexpose the unit to direct sunlight, or place near an air conditioner, or in any extremely
hot place.
Take care not to drop the unit and avoid strong impact.
Strong impact may cause malfunctions. When carrying or transporting the unit, protect the
keyboard and switches with soft cloth or other material.
Keep the unit free of liquids, dust, etc.
Do not allow foreign matter to get between the keys, especially metallic objects such as hairpins,
sewing needles or coins. Also, do not let the unit get wet.
Never attempt to modify any parts of the unit.
The unit is a precision instrument, made of electronic parts. Any modification of, or tampering with
inner parts may cause malfunction.
Do not use lacquer, thinner or similar chemicals for cleaning. -
Clean the keyboard with a soft cloth dampened in a weak solution of water and a neutral detergent.
(Soak the cloth in the solution and squeeze until it is almost dry. )
Model: CTK-80
Number of keys: 49
Polyphony: 8-note (max)
Preset tones: 100
Auto-rhythms: 100
Built-in speaker: 10cm dia. (output = 2W)
Demonstration tune: 1 (Classical Medley)
Auto-accompaniment: CASIO CHORD, FINGERED
Terminals: DC 9V jack
Power source: 2-way AC/DC power sources;
AC: 100, 117, 220 or 240 (+10V), 50/60HZz, with optional AC
adaptor AD-5.
DC: 6 AA size dry batteries
Battery life: approx. 3 hours (SUM-3/R6P)/6 hours (AM-3/LR6)
Power consumption: 6.0W
Dimensions(W x D x H): 877 x 327 x 94 mm (34 %16" x 12 7/s" x 3 '"/16")
Weight: 3.05kg (6.7 lbs) excluding batteries
* Design and specifications are subject to change without notice.
E-21

Casio CTK-80 Specifications

General

Brand	Casio
Model	CTK-80
Category	Musical Instrument
Language	English