Chromatic Tuner
CA-10
OWNER'S MANUAL
Precautions
Controls and their functions
THE FCC REGULATION WARNING
This equipment has been tested and found to comply with the limits for a Class B digital device, pursu-
ant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in
a particular installation. If this equipment does cause harmful interference to radio or television recep-
tion, which can be determined by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
Unauthorized changes or modification to this system can void the user’s authority to operate this equip-
ment.
Thank you for purchasing the KORG CA-10.
CE mark for European Harmonized Standards
CE mark which is attached to our company’s products of AC mains operated apparatus until
December 31, 1996 means it conforms to EMC Directive (89/336/EEC) and CE mark Directive (93/
68/EEC).
And, CE mark which is attached after January 1, 1997 means it conforms to EMC Directive (89/336/
EEC), CE mark Directive (93/68/EEC) and Low Voltage Directive (73/23/EEC).
Also, CE mark which is attached to our company’s products of Battery operated apparatus means it
conforms to EMC Directive (89/336/EEC) and CE mark Directive (93/68/EEC).
NOTICE
KORG products are manufactured under strict specifications and voltages required by
each country. These products are warranted by the KORG distributor only in each
country. Any KORG product not sold with a warranty card or carrying a serial number
disqualifies the product from the manufacturer’s/distributor’s warranty and liability. This
requirement is for your own protection and safety.
Handling
To avoid breakage, do not apply excessive force
to the switches or controls.
Cleaning
If the exterior becomes dirty, wipe it with a clean,
dry cloth. Do not use liquid cleaners such as
benzene or thinner, or cleaning compounds or
flammable polishes.
Keep this manual
After reading this manual, please keep it for later
reference.
Keeping foreign matter out of your equipment
Never set any container with liquid in it near this
equipment. If liquid gets into the equipment, it
could cause a breakdown, fire, or electrical
shock.Be careful not to let metal objects get into
the equipment.
Location
Using the unit in the following locations can
result in a malfunction.
• In direct sunlight
• Locations of extreme temperature or
humidity
• Excessively dusty or dirty locations
• Locations of excessive vibration
• Close to magnetic fields
Power supply
To power the tuner, use only a 6F22 (006P)
9V dry cell battery (sold separately).
Be sure to turn the power switch OFF when
the unit is not in use. Remove the battery in
order to prevent it from leaking when the units
is not in use for extended periods.
Interference with other electrical devices
This product contains a microcomputer.
Radios and televisions placed nearby may
experience reception interference. Operate
this unit at a suitable distance from radios
and televisions.
Installing the battery
Tuning procedure
Troubleshooting
Specifications
Basic concepts of tuning
0
+20-20 MANUALAUTO
CENT
-50
CENT
+50
CALIBRATION MODE NOTE NAME
METER
0
+20-20
MANUALAUTO
CENT
-50
CENT
+50
CALIBAUTO MANL
NOTE
IN
POWER
MIC
CA-10
KORG INC.
15-12,Shimotakaido 1-chome, Suginami-ku, Tokyo, Japan
C 1997 KORG INC.
0
+20-20 MANUALAUTO
CENT
-50
CENT
+50
CALIBAUTO MANL
NOTE
IN
POWER
MIC
1
2
4
7
6
5
8
3
CA-10
Scale: 12 note equal tempered
Detection range:
A0 (27.50 Hz) -- B7 (3951.07 Hz)
Detection precision: ± 3 cents
Tuning modes: AUTO, MANUAL
Calibration adjustment:
430-449 Hz (1 Hz steps)
Connection terminals: INPUT jack
Power supply: 9V battery 6F22
(S-006P; sold separately)
Battery life: approximately 30hours
(with manganese battery, A4 input)
Dimensions:
62 mm (W) x 95.8 mm (D) x 28.5 mm (H)
Weight: 106 g (with battery)
Specifications and appearance are subject to
change without notice for improvement.
1 Power switch
The power will turn on/off each time you
press this switch. If you leave the unit
powered-on for 20 minutes without
performing any operation, the power will
automatically turn off.
2 INPUT jack
Connect the instrument that you wish to
tune.
3 LCD screen
Mode: This indicates whether the current
mode is AUTO or MANUAL.
Note name: This indicates a note name of
A, A#, B, C, C#, D, D#, E, F, F#, G, G#.
Calibration: This indicates the currently
specified calibration setting.
Meter: This indicates the deviation from the
correct pitch.
4 CALIB button
This changes the calibration setting.
Calibration can be set in 1 Hz steps from 430
Hz to 449 Hz.
5 AUTO button
Pressing this button will select AUTO mode,
so that the note name closest to the pitch you
played will automatically be displayed for
tuning.
6 MANL/NOTE button
Pressing this button will select MANUAL mode.
Subsequently, pressing this button additional
times will switch the note name setting.
7 Mic
When tuning acoustic instruments, place this
mic near the portion of the instrument from
which the sound is output.
The mic will not function when the INPUT jack
is connected.
8 Tuning guide LEDs
When the pitch is correct, the middle LED will
light. If the pitch is flat, the left LED will light. If
the pitch is sharp, the right LED will light.
1. Slide the rear of the case as shown in the
diagram.
2. Insert a 9V battery (6F22 type; S-006P,
sold separately) as shown. Be sure that the
polarity is correct.
3. Slide the case closed.
When the LCD screen becomes dim,
it's time to change the battery.
1. If you are using an electrical instrument,
connect it to the INPUT jack.
2. Check the calibration display. If you wish to
change the setting, press the CALIB button
the appropriate number of times to make the
desired setting.
AUTO mode
3. Make sure that AUTO mode is selected. If
the unit is in MANUAL mode, press the AUTO
button.
4. Play a single note on your instrument, and
tune it so that the desired note name is
displayed.
Then watch the meter display, and make fine
adjustments to the tuning so that the center
LED of the tuning guide is lit. If you are
playing a stringed instrument, use the same
procedure to tune each string.
MANUAL mode
3. Press the NOTE button so that the desired
note name is displayed.
4. Play a single note on your instrument, and
watching the meter display, make fine
adjustments to the tuning so that the center
LED of the tuning guide is lit. If you are
playing a stringed instrument, use the same
procedure to tune each string.
Cannot tune. Or, tuning is difficult.
If you are using an electric instrument, has the
instrument volume been turned down?
Alternatively, has the volume been raised
excessively? Adjust the instrument volume so
that the meter becomes stable.
If you are using an acoustic instrument, try
changing the distance or angle between the
built-in mic (or external mic) and your
instrument.
If the unit malfunctions, and turning the
power OFF and then ON does not
resolve the problem, remove and then
reinstall the battery.
About the Cent display
"Cents" are the smallest relative unit used
to indicate pitch. A semitone consists of
100 cents, and an octave consists of 1200
cents. The CA-10 shows the difference
between the input pitch and the correct
pitch in units of cents. (Since 1 cent is an
extremely small unit, differences of
approximately ± 3 cents will not normally
be a problem.)
Standard pitch and calibration
The tuning of an instrument is expressed
in terms of the frequency of the pitch of
the middle A note on a piano; most
commonly A4=440 Hz. On the CA-10 the
standard pitch (the frequency of A4) can
be adjusted in the range of 430-449 Hz.
Adjusting the standard pitch is referred to
as "calibration."
