TROUBLESHOOTING

Refer to the chart below when this unit does not function properly. If the problem you are experiencing is not listed below or if the instruction below does not help, set this unit to the standby mode, disconnect the power cord, and contact the nearest authorized YAMAHA dealer or service center.

■General

Problem

Cause

Remedy

Refer to

page

 

 

 

This unit fails to turn

The power cord is not connected or the

Connect the power cord firmly.

—

on when STANDBY/

plug is not completely inserted.

 

 

ON (or SYSTEM

The impedance setting is incorrect.

Set the impedance to match your speakers.

67

POWER) is pressed,

or enters the standby

The protection circuitry has been

Make sure all speaker wire connections on this unit

11-14

mode soon after the

activated.

and on all speakers are secure and that the wire for

 

power has been

 

 

each connection does not touch anything other than

 

turned on.

 

 

 

its respective connection.

 

 

 

 

 

This unit has been exposed to a strong

Set this unit in the standby mode, disconnect the

—

 

external electric shock (such as lightning

power cord, plug it back in after 30 seconds, then use

 

 

or strong static electricity).

it normally.

 

On-screen display

The setting for the on-screen display is set

Select the full display or short display mode.

52

does not appear.

to “DISPLAY OFF”.

 

 

 

“GRAY BACK” in SET MENU is set to

Set “GRAY BACK” to AUTO to always show the

64

 

OFF, and no video signal is currently

OSD.

 

 

being received.

 

 

No sound

Incorrect input or output cable

Connect the cables properly. If the problem persists,

15-20

 

connections.

the cables may be defective.

 

 

 

 

 

 

The optimizer microphone is connected.

Disconnect the optimizer microphone.

24

 

 

 

 

 

The input mode is set to DTS or

Select AUTO.

37

 

ANALOG.

 

 

 

No appropriate input source has been

Select an appropriate input source with INPUT,

30

 

selected.

MULTI CH INPUT (or MULTI CH IN on the remote

 

 

 

control) or the input selector buttons.

 

 

 

 

 

 

Speaker connections are not secure.

Secure the connections.

12

 

The front speakers to be used have not

Select the front speakers with SPEAKERS A and/or

30

 

been selected properly.

B.

 

 

The volume is turned down.

Turn up the volume.

—

 

 

 

 

 

The sound is muted.

Press MUTE or any operation button of this unit to

31

 

 

resume audio output, then adjust the volume.

 

 

The input mode is set to ANALOG while

Set the input mode to AUTO or DTS.

37

 

playing a source encoded with a DTS

 

 

 

signal.

 

 

 

 

 

 

 

Signals this unit cannot reproduce are

Play a source whose signals can be reproduced by this

—

 

being received from a source component,

unit.

 

 

such as a CD-ROM.

 

 

No picture

The output and input for the picture are

Turn on the video conversion function.

64

 

connected to different types of video

 

 

 

jacks.

 

 

86

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Yamaha DSP-AX757SE owner manual Troubleshooting, General
Page 87 Page 89

DSP-AX757SE specifications

The Yamaha DSP-AX757SE is a high-performance home theater receiver designed to meet the demands of audiophiles and casual listeners alike. As part of Yamaha's critically acclaimed line of audio equipment, the DSP-AX757SE combines advanced technologies with robust build quality to deliver an immersive audio experience.

At the heart of the Yamaha DSP-AX757SE is its powerful 7.1 channel amplifier. With a total output of up to 100 watts per channel, this receiver is capable of driving a wide range of speakers, making it suitable for various home theater setups. The low total harmonic distortion ensures that audio reproduction remains clear and faithful to the original source, whether you're watching a movie, listening to music, or playing video games.

One of the standout features of the DSP-AX757SE is its Digital Sound Field Processing technology. This innovative feature simulates realistic listening environments by creating sound fields inspired by actual concert halls and theaters. With presets that replicate these acoustics, users can tailor their audio experience based on the type of content they are enjoying. Furthermore, the receiver supports various surround sound formats, including Dolby Digital, DTS, and Yamaha’s proprietary Cinema DSP, allowing for an engaging multi-channel audio experience.

Connectivity options are abundant with the DSP-AX757SE. It offers multiple HDMI inputs, ensuring compatibility with modern devices such as Blu-ray players and gaming consoles. In addition to HDMI, the receiver provides inputs for digital audio, analog audio, and even phono input for vinyl enthusiasts. The inclusion of component video switching allows users to connect high-definition video sources, making it a versatile choice for a complete home theater system.

Another significant aspect of the DSP-AX757SE is its intuitive on-screen graphical interface, which simplifies navigation and configuration. Users can effortlessly adjust settings, select sound modes, and optimize speaker setups using the on-screen menus. The built-in YPAO (Yamaha Parametric room Acoustic Optimizer) feature automatically analyzes the room’s acoustic characteristics and calibrates the system accordingly, ensuring optimal sound quality.

In terms of aesthetics, the Yamaha DSP-AX757SE boasts a sleek and modern design that easily fits into any home theater environment. Its sturdy construction reflects Yamaha’s attention to detail, making it a reliable choice for long-term use.

Overall, the Yamaha DSP-AX757SE embodies a perfect blend of powerful performance, advanced technology, and user-friendly features, making it a worthy addition to any home theater setup. It caters to a wide range of audio preferences and delivers an exceptional listening experience that ensures enjoyment for years to come.
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