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.

24

POWER) is pressed,

or enters in the

The protection circuitry has been

Make sure all speaker wire connections on this unit

13-15

standby mode soon

activated.

and on all speakers are secure and that the wire for

 

after the power has

 

 

each connection does not touch anything other than

 

been 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

 

 

and 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

63

 

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,

17-20

 

connections.

the cables may be defective.

 

 

 

 

 

 

The optimizer microphone is connected.

Disconnect the optimizer microphone.

26

 

 

 

 

 

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,

31

 

selected.

MULTI CH INPUT or the input selector buttons.

 

 

 

 

 

 

Speaker connections are not secure.

Secure the connections.

13

 

 

 

 

 

The front speakers to be used have not

Select the front speakers with SPEAKERS A and/or

31

 

been selected properly.

B.

 

 

 

 

 

 

The volume is turned down.

Turn up the volume.

 

 

 

 

 

The sound is muted.

Press MUTE or any operation buttons of this unit to

32

 

 

cancel a mute and 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.

 

 

 

 

 

 

 

The signals this unit cannot reproduce are

Play a source whose signals this unit can reproduce.

 

being received from a source component

 

 

 

e.g.: a CD-ROM.

 

 

 

 

 

 

No picture

The output and input for the picture are

Turn on the video conversion function.

63

 

connected to different types of video

 

 

 

jacks.

 

 

 

 

 

 

 

INFORMATION

ADDITIONAL

 

 

 

 

 

 

 

English

 

 

 

 

79

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Yamaha DSP-AX750SE owner manual Troubleshooting, General

DSP-AX750SE specifications

The Yamaha DSP-AX750SE is a high-performance audio receiver designed to deliver an immersive home theater experience. Launched as part of Yamaha's renowned lineup of surround sound receivers, the DSP-AX750SE combines advanced technology with user-friendly features, making it a popular choice for both audio enthusiasts and casual listeners.

One of the standout features of the DSP-AX750SE is its impressive audio processing capabilities. Equipped with a powerful DSP (Digital Signal Processor), the receiver supports a variety of surround formats, including Dolby Digital and DTS. This allows users to enjoy a multi-dimensional sound experience, whether they're watching movies or listening to music. The unit can handle up to 7.1 channels, delivering rich and immersive audio that fills any room.

The DSP-AX750SE boasts Yamaha's unique Cinema DSP technology, which simulates the acoustics of various listening environments. With multiple preset sound fields, users can select different modes to enhance their audio experience based on the type of content they’re enjoying, whether it’s a concert, movie, or sports event. This feature stands out in creating a cinematic atmosphere, allowing listeners to feel as if they are part of the action.

Another significant characteristic of the DSP-AX750SE is its versatility in terms of connectivity. The receiver is equipped with multiple inputs and outputs, including HDMI ports, allowing for a seamless connection to modern devices such as Blu-ray players, gaming consoles, and streaming devices. The inclusion of both digital coaxial and optical inputs further enhances its compatibility with various audio sources.

For those who appreciate high-resolution audio, the DSP-AX750SE also supports PCM signals for high-definition sound formats. It comes with a built-in AM/FM tuner, enabling users to enjoy their favorite radio stations. The unit also features a robust power amplifier section, ensuring clean and dynamic audio reproduction even at higher volume levels.

User-friendliness is another key design element of the Yamaha DSP-AX750SE, with an intuitive on-screen menu system that simplifies navigation and setup. The remote control is designed to provide easy access to various functions, allowing users to tweak settings on-the-fly without hassle.

In conclusion, the Yamaha DSP-AX750SE is a feature-rich audio receiver that excels in enhancing the home theater experience. With its advanced processing technologies, versatility in connectivity, and user-friendly design, it is well-suited for anyone looking to create an exceptional audio environment. Whether for movie nights or music playback, the DSP-AX750SE remains a reliable choice for high-performance sound.