Troubleshooting

Problem

 

Possible Cause

 

Action

See page

 

 

 

 

 

 

No keyboard Sound

1.

Power supply problem.

1.

Correctly attach the AC adaptor,

Page E-14

 

 

 

 

make sure that batteries poles (+/

 

 

 

 

 

–) are facing correctly, and check to

 

 

 

 

 

make sure that batteries are not

 

 

 

 

 

dead.

 

 

2.

Power is not turned on.

2.

Set the POWER/MODE switch to

Page E-16

 

 

 

 

the NORMAL position.

 

 

3.

Volume setting is too low.

3.

Use the MAIN VOLUME button to

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increase volume.

 

 

4.

The POWER/MODE switch is in

4.

Normal play is not possible on the

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the CASIO CHORD or FINGERED

 

accompaniment keyboard while the

 

 

 

position.

 

POWER/MODE switch is set to

 

 

 

 

 

CASIO CHORD or FINGERED.

 

 

 

 

 

Change the POWER/MODE switch

 

 

 

 

 

setting to NORMAL.

 

 

 

 

 

Any of the following symptoms

Low battery power

Replace the batteries with a set of new

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while using battery power.

 

 

ones or use the AC adaptor.

 

Dim power supply indicator

Instrument does not turn on

Display that is flickering, dim, or difficult to read

Abnormally low speaker/ headphone volume

Distortion of sound output

Occasional interruption of sound when playing at high volumes

Sudden power failure when playing at high volumes

Flickering or dimming of the display when playing at high volume

Continued sound output even after you release a key

A totally different tone may sound

Abnormal rhythm pattern and Song Bank play

Loss of power, sound distor- tion, or low volume when playing from a connected computer or MIDI device

Auto Accompaniment does not

Auto accompaniment volume is set to

Use the ACCOMP VOLUME button to

Page E-21

sound.

0.

 

increase the volume.

 

 

 

 

 

The key or tuning does not

The tuning or transpose parameter is

Change the transpose or tuning pa-

Page E-29

match when playing along with

set to a value other than 0 or 00.

rameter value to 0 or 00.

 

another instrument.

 

 

 

 

 

 

 

 

 

Missing Song Bank tune.

1.

Left-hand or right-hand part is

1. Check the display to see if the indi-

Page E-24

 

 

turned off.

cator for one of the parts is not dis-

 

 

 

 

played. If so, press the part’s but-

 

 

 

 

ton (LEFT ON/OFF, RIGHT ON/

 

 

 

 

OFF) to turn it on.

 

 

2.

Accompaniment volume is set to 0.

2. Adjust accompaniment volume.

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Casio 451 manual Troubleshooting, Problem Possible Cause Action See

451 specifications

The Casio 451 is a remarkable timepiece that combines classic design with contemporary features, making it a favorite among watch enthusiasts. Known for its reliability and functionality, the Casio 451 showcases the brand's dedication to innovation while honoring its legacy.

One of the main features of the Casio 451 is its precision quartz movement. This technology ensures accurate timekeeping, minimizing the hassles of manual winding. The watch is powered by a long-lasting battery, providing extended use without frequent replacements, which is a testament to Casio's commitment to convenience.

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Another noteworthy characteristic of the Casio 451 is its versatility in design. Whether dressed up for formal occasions or worn casually, this watch seamlessly complements various styles and outfits. The comfortable strap ensures a secure fit on the wrist, allowing for all-day wear without discomfort.

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In summary, the Casio 451 encapsulates a perfect blend of style, functionality, and durability. Its precision quartz movement, robust construction, and thoughtful features make it a reliable choice for anyone in search of a versatile timepiece. Whether you're navigating daily tasks or enjoying leisure activities, the Casio 451 proves to be more than just a watch; it’s a trusted companion for life's moments.