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Bedienungsanleitung 
User Manual

ACC0002854-000
07/2019

Clip-On Tuner

Congratulations on your new MUSIC STORE 
AT-300B Clip-on Tuner!

Thank you for choosing a 

MUSIC STORE

 product. Through effi -

cient development and economical production, 

MUSIC STORE

 

enables high quality products at a fantastic price.

Please read the instruction manual carefully to learn about all 
the features of this product and keep it for future use.

Have fun with your new product!

Your MUSIC STORE Team

Guarantee:

The current general terms and guarantee conditions
of the Music Store professional GmbH apply.

You can view it at: www.musicstore.de

If you have any questions or suggestions, please
contact us:

Music Store professional GmbH
Istanbulstr. 22-26
51103 Cologne
Managing Director: Michael Sauer
WEEE-Reg.-No. DE 41617453

Tel: +49 221 8884-0
Fax: +49 221 8884-2500
[email protected]

Scope of delivery:

Intended use:

Safety instructions:

Set up:

Operation:

Specifi cations:

Troubleshooting:

Envrionmental protection:

C

ontrols

 and functions

:

The product 

MUSIC STORE AT-300B

 was designed for use as 

an electronic tuner. The device may only be used for this pur-
pose and in accordance with the operating instructions. Other 
purposes as well as operation under other operating conditions 
are expressly not intended and can lead to damage to property 
or personal injury! No liability is assumed for damage resulting 
from improper use.

In case of a malfunction, switch the tuner (1) off and on again. 
If the problem persists, remove the battery and replace it after 
1 minute.

Turn the battery cover (3) as marked on the back of the unit 
and insert a new CR2032 battery, observing the polarity. Battery 
life depends on operating conditions. The enclosed battery is for 
test purposes only.
If necessary, replace it with a fresh CR2032 battery.
The clip can be inserted either on the left or on the right rear 
side.

The company MUSIC STORE professional GmbH always strives 
to reduce the burden of packaging to a minimum. The use 
of environmentally friendly and recyclable materials is of fun-
damental importance to us. Please dispose of and recycle the 
packaging components after use properly. 

Disposal of packaging:

Ensure that paper packaging, plastic materials, etc. 
are separately recycled. Observe the corresponding 
disposal instructions on the packaging.

Disposal of batteries:

Batteries do not belong in the garbage! Please keep 
batteries in accordance with the offi cial collection 
points or disposal stations in accordance with the 
specifi cations. 

Disposal of your old device:

Do not dispose of the device with household waste! 
This device is subject to the WEEE Directive (Waste 
Electrical and Electronic Equipment) in its currently 
valid version.

The device will be disposed of by an approved waste disposal 
company or your local waste disposal offi ce. The regulations 
valid in your country must be observed! 

1. 

To switch on, hold the On/Off switch (1) pressed for 
approx. 1-2 seconds.

2. 

Press the On/Off switch (1) to select the tuning (Chroma-
tic, Guitar, Bass, Violin, Ukulele).

3. 

Attach the tuner with the clip (4) to your instrument (for 
example to the headstock of a guitar).

4. 

Play the string you want to tune. The note (b) (for all 
tunings) and the string number (for guitar, bass, violin, 
ukulele tuning) are shown on the display (2).

• 

Note is correct: the backlight changes to green, the 
pointer in the measuring range (c) is in the middle.

• 

Note too low or too high: the backlight is white, the 
pointer is in the left or right measuring range (c).

DANGER! (For babies and children)

Dispose of or store any packaging material properly! 
Packaging material must be kept out of the reach of 
babies and children due to the risk of 

suffocation

.

Ensure that children never use the appliance unat-
tended! In addition, make sure that children do not 
remove (small) parts from the device, as they could 
suffocate by swallowing parts

!

Hint! (Operating conditions)

Due to its structural characteristics, the device is 
designed for indoor operation (IP20). Never expose 
the device to rain, moisture or liquids as this may 
cause damage.
Vibrations, dust or sunlight can also cause damage,  
as well as the proximity to a magnetic fi eld, avoid 
them!

• 

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. Use 
the tuner at a suffi cient distance.

• 

Avoid using excessive force during operation.

• 

Please use a dry, soft cloth for cleaning. Do not 
immerse the unit in water and do not use chemical 
cleaners such as benzene, thinners or fl ammable 
detergents.

• 

If the device will not be used for an extended period 
of time, remove the battery.

Content

Quantity

1x

AT-300B Clip-on Tuner

1x

CR2032 Battery

1x

Manual

Model

Fame CAT-02C

Tuning

Chromatic, Guitar, Bass, Violin, 
Ukulele

Tuning mode

Clip (frequency measurement via 
vibration)

Tuning range

A0 (27,5 Hz) ~ A6 (1760 Hz)

Standard pitch 
frequency

440 Hz

2-colour backlight

green - tone is right
white - tone too low/high

Power supply

CR2032 Battery

Weight

40 g

Dimensions

35 x 48 x 54 mm

MS ID:  ACC0002854-000 (07/2019)

DEUTSCH

ENGLISH

AT-300B

Nr. Beschreibung

1. On/Off Switch
2. LCD Display
3. Battery Compartment Cover
4. Clip
a. Tuning (Chromatic, Guitar, Bass, Violin, Ukulele)
b. Note
c. Measuring range

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