background image

Control Section

Output Jack (with power switch function)/

Battery Holder

Pickup Section

Thank you for choosing a Yamaha electric-acoustic guitar. 
In order to make the most of the advanced features and performance provided by your guitar, 
please read this manual carefully before using the instrument. 
Note that this manual covers only the electronic parts of this product. For information on the 
other non-electronic parts, refer to the separate Acoustic Guitar Owner’s Manual. 

Nomenclature / Controls

The built-in preamplifier is automatically turned ON when a guitar 
cable is connected to the output jack. Always set the volume to its 
minimum level when connecting or disconnecting the cable.

VOL Control  

Controls the volume.

BATT. (Battery Check) Indicator

This indicator will light when the battery needs to be replaced. Please replace the 
battery as soon as possible when the BATT. indicator lights.

* The battery check indicator may light momentarily when the TUNER switch is 

pressed. This is not a sign however, that the battery power is low.

3-Band Equalizer

LOW : 

Boosts or cuts the level of the low frequencies.

MID : 

Boosts or cuts the level of the middle frequencies. The AMF control 

r

 adjusts 

the center frequency of the band affected by this control.

HIGH : 

Boosts or cuts the level of the high frequencies.

AMF Control

Sets the center frequency of the band of frequencies affected by the MID equalizer 
control. The range is from 80 Hz to 10 kHz.

* This control has no effect when the MID equalizer control is set to its center position.

Tuner Display

  

Displays tuner information.

TUNER Switch  

Switches the tuner ON/OFF.

Sound Hole Cover (included) 

Inserting the sound hole cover into the sound hole effectively reduces feedback.

Specifications

System: 

System72  

Pickup: 

Bar Sensor (Piezo type)  

Preamplifier Controls:

 

VOL, 3-Band EQ (HIGH, MID, LOW), AMF control, TUNER  

Output Jack: 

Combination end pin/

power switch  

Output Impedance: 

1kΩ  

Batteries:

 Size AA alkaline battery (LR6) x2  

Battery Life: 

Approx. 180 hours (When tuner is not used and when alkaline batteries are 

installed) 

* May differ depending on operating conditions.

  

Tuner: 

Chromatic type 

(12 semi-tones), Accuracy range +/– 3 cents, A4=440Hz  

Accessories: 

Neck adjustment 

hex-wrench x1, Sound hole cover x1

     

     

Electric Acoustic Guitar

SYSTEM72

 

Owner’s Manual

Using The Tuner

Press and hold the TUNER switch until the 

 display lights to switch the tuner 

power ON.

w

 Tune the guitar string until the note name of the desired pitch appears in the display.

e

 The string is in tune when only the 

 lamp lights in the center of the 

 display.

r

 Press the TUNER switch again to switch the tuner power OFF. Also, if the note name is not 

shown in the display for more than 1 minute, the power will automatically switch OFF. 

(

 display goes off)

* It may take a few seconds before the tuner can detect pitches after being switched ON.
* The note name and 

 

pitch changes. Gradually change the pitch and check when tuning.

* The tuner may not be able to detect notes rich with overtones or with very short sustain.
* Sound output is not muted when the tuner is being used.

Pitch is low       

J

        

J

        

J

       In Tune       

I

        

I

        

I

       Pitch is high

PRECAUTIONS

PLEASE READ CAREFULLY BEFORE PROCEEDING

Please keep this manual in a safe and handy place for future reference.

 WARNING

Always follow the basic precautions listed below to avoid the possibility of serious injury 
or even death from electrical shock, short-circuiting, damages, fire or other hazards. These 
precautions include, but are not limited to, the following:

  Do not open

s¬ 4HIS¬INSTRUMENT¬CONTAINS¬NO¬USERSERVICEABLE¬PARTS¬$O¬NOT¬OPEN¬THE¬INSTRUMENT¬OR¬ATTEMPT¬TO¬

DISASSEMBLE¬OR¬MODIFY¬THE¬INTERNAL¬COMPONENTS¬IN¬ANY¬WAY¬)F¬IT¬SHOULD¬APPEAR¬TO¬BE¬MALFUNCTIONING¬
DISCONTINUE¬USE¬IMMEDIATELY¬AND¬HAVE¬IT¬INSPECTED¬BY¬QUALIlED¬9AMAHA¬SERVICE¬PERSONNEL

 Water 

warning

s¬ $O¬NOT¬EXPOSE¬THE¬INSTRUMENT¬TO¬RAIN¬USE¬IT¬NEAR¬WATER¬OR¬IN¬DAMP¬OR¬WET¬CONDITIONS¬PLACE¬IT¬ON¬ANY¬

CONTAINERS¬SUCH¬AS¬VASES¬BOTTLES¬OR¬GLASSES ¬CONTAINING¬LIQUIDS¬THAT¬MIGHT¬SPILL¬INTO¬ANY¬OPENINGS¬
)F¬ANY¬LIQUID¬SUCH¬AS¬WATER¬SEEPS¬INTO¬THE¬INSTRUMENT¬TURN¬OFF¬THE¬POWER¬IMMEDIATELY¬AND¬HAVE¬THE¬
INSTRUMENT¬INSPECTED¬BY¬QUALIlED¬9AMAHA¬SERVICE¬PERSONNEL

  If you notice any abnormality

s¬ 7HEN¬ONE¬OF¬THE¬FOLLOWING¬PROBLEMS¬OCCUR¬IMMEDIATELY¬TURN¬OFF¬THE¬POWER¬AND¬REMOVE¬ALL¬BATTERIES¬

FROM¬THE¬INSTRUMENT¬THEN¬HAVE¬THE¬INSTRUMENT¬INSPECTED¬BY¬9AMAHA¬SERVICE¬PERSONNEL

¬ )T¬EMITS¬UNUSUAL¬SMELLS¬OR¬SMOKE
¬ 3OME¬OBJECT¬HAS¬BEEN¬DROPPED¬INTO¬THE¬INSTRUMENT
¬ 4HERE¬IS¬A¬SUDDEN¬LOSS¬OF¬SOUND¬DURING¬USE¬OF¬THE¬INSTRUMENT

 CAUTION

Always follow the basic precautions listed below to avoid the possibility of physical injury to 
you or others, or damage to the instrument or other property. These precautions include, but 
are not limited to, the following:

 Connection

s¬ "EFORE¬CONNECTING¬THE¬INSTRUMENT¬TO¬OTHER¬ELECTRONIC¬COMPONENTS¬TURN¬OFF¬THE¬POWER¬FOR¬ALL¬COMPONENTS¬

"EFORE¬TURNING¬THE¬POWER¬ON¬OR¬OFF¬FOR¬ALL¬COMPONENTS¬SET¬ALL¬VOLUME¬LEVELS¬TO¬MINIMUM

s¬ "E¬SURE¬TO¬SET¬THE¬VOLUMES¬OF¬ALL¬COMPONENTS¬AT¬THEIR¬MINIMUM¬LEVELS¬AND¬GRADUALLY¬RAISE¬THE¬

VOLUME¬CONTROLS¬WHILE¬PLAYING¬THE¬INSTRUMENT¬TO¬SET¬THE¬DESIRED¬LISTENING¬LEVEL

 Location

s¬ $O¬NOT¬PLACE¬THE¬INSTRUMENT¬IN¬AN¬UNSTABLE¬POSITION¬WHERE¬IT¬MIGHT¬ACCIDENTALLY¬FALL¬OVER

 Handling 

caution

s¬ $O¬NOT¬REST¬YOUR¬WEIGHT¬ON¬OR¬PLACE¬HEAVY¬OBJECTS¬ON¬THE¬INSTRUMENT¬AND¬DO¬NOT¬USE¬

EXCESSIVE¬FORCE¬ON¬THE¬BUTTONS¬SWITCHES¬OR¬CONNECTORS

s¬ $O¬NOT¬USE¬THE¬INSTRUMENTDEVICE¬OR¬HEADPHONES¬FOR¬A¬LONG¬PERIOD¬OF¬TIME¬AT¬A¬HIGH¬OR¬

UNCOMFORTABLE¬VOLUME¬LEVEL¬SINCE¬THIS¬CAN¬CAUSE¬PERMANENT¬HEARING¬LOSS¬)F¬YOU¬EXPERIENCE¬
ANY¬HEARING¬LOSS¬OR¬RINGING¬IN¬THE¬EARS¬CONSULT¬A¬PHYSICIAN

*  Yamaha cannot be held responsible for damage caused by improper use or modifications 

to the instrument, or data that is lost or destroyed.

*  Information on the battery can be found in the section at the end of this sheet.
*  Please read the instruction manual for the external audio device such as a guitar 

amplifier, etc., prior to use. 

EN

Replacing the Batteries

q

 Slide the tab on the endpin section in the direction indicated by the arrow in the diagram 

below to release the lock, then pull out the battery holder.

w

 Insert two AA batteries making sure that the battery poles are properly aligned with the 

polarity markings on the battery holder.

e

 Slide the battery holder back into the endpin section until it locks.

q

 Release the lock

AA battery 

x2

Battery Holder

Tab

System72_ZW19200_R0_0706.indd   2

2016/9/2   15:04:10

Содержание SYSTEM72

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