Onkyo A-9755, 9555 instruction manual Troubleshooting, Recording, Others

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Troubleshooting—Continued

Recording

Can’t record.

The component connected to the MAIN IN jacks cannot be recorded.

When using the A-9755 as a power amplifier (MAIN IN function), recording is not possible.

Others

The Volume control has no effect.

When using the A-9755 as a power amplifier (MAIN IN function), the Volume control has no effect. Adjust the volume on the connected preamp instead.

The Muting function doesn’t work.

When using the A-9755 as a power amplifier (MAIN IN function), the Muting function does not work. Use the muting function on the connected preamp instead.

The A-9755/A-9555 contains a microcomputer for signal processing and control functions. In very rare situations, severe interference, noise from an external source, or static electricity may cause it to lock up. In the unlikely event that this happens, unplug the power cord from the wall outlet, wait at least ten seconds, and then plug it back in again.

Onkyo is not responsible for damages (such as CD rental fees) due to unsuccessful recordings caused by the unit’s malfunction. Before you record important data, make sure that the material will be recorded correctly.

How to reset:

To reset the A-9755/A-9555 to its factory defaults, while holding down the [PURE DIRECT] button, press the [LOUDNESS] button, and then release both buttons. The input selector indicators light up for one second, and then the A-9755/A-9555 enters On mode.

A-9755/A-9555 BLOCK DIAGRAM

 

SELECTOR

 

VOLUME

PHONO

ON

CD

 

TUNER

OFF

BASS,

 

IN

TREBLE

 

TAPE

PURE DIRECT

OUT

IN

 

MD

 

OUT

ON

HDD IN

 

LINE

OFF

BASS, TREBLE

 

 

HEADPHONE

 

DIGITAL

MAIN IN

AMPLIFIER

ON

 

 

 

 

OFF

LOW PASS

 

L-ch

 

 

FILTER

POWER

 

 

AMP

 

SPEAKER B

DIRECT

 

RELAY

MAIN IN

R-ch

LOW PASS

FILTER

 

ON

 

 

OFF

 

 

DIGITAL

A-9755 ONLY

AMPLIFIER

 

SPEAKER A RELAY

SPEAKER SPEAKER

AB

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Contents 9755/A-9555 Avis Important Safety InstructionsPower PrecautionsFeatures Table of ContentsConnecting the Supplied Power Cord Supplied AccessoriesInstalling the Remote Controller’s Batteries Front Panel Front & Rear PanelsRear Panel Front & Rear PanelsRemote Controller Using the Remote Controller Remote ControllerConnecting the Speaker Cables Connecting the A-9755/A-9555Connecting Your Speakers Speaker Connection PrecautionsBefore Making any Connections Connecting the A-9755/A-9555Connecting a Turntable Connecting a CD PlayerConnecting a TV or Other Component with an Audio Output Connecting a TunerConnecting a Remote Interactive Dock RI Dock Connecting a Cassette DeckRemote Control Operation Connecting a Preamp A-9755 onlyConnecting Components Auto Power OnSelecting Speaker Press the Power switchEnjoying Audio Sources Turning On the A-9755/A-9555Listening to Components Muting the A-9755/A-9555 remote controller onlyUsing Headphones Enjoying Audio SourcesAdjusting the Treble Using the Tone ControlsSetting the Pure Direct Function Adjusting the BassRecording Using the Main in Function A-9755 onlyRemote Controller TroubleshootingAudio Recording TroubleshootingOthers 9755 9555 Specifications

A-9755, 9555 specifications

The Onkyo 9555 and A-9755 are two notable models in the world of high-fidelity audio, representing a blend of technological innovation and classic design principles that appeal to audiophiles and casual listeners alike.

The Onkyo 9555 integrates a powerful amplifier with advanced features suitable for both home theater systems and stereo setups. One of its main highlights is the incorporation of a high-current amplifier design, which ensures optimal driving power for various speakers, making it capable of delivering clear sound even at high volumes. With a RMS power output typically ranging from 50 to 100 watts per channel, it provides a robust performance that can fill larger rooms with immersive audio.

Equipped with a range of input options including digital coaxial and optical inputs, as well as traditional analog connections, the Onkyo 9555 offers flexibility for connecting multiple audio sources. The inclusion of a built-in phono stage also allows for direct connection of turntables, catering to vinyl enthusiasts who appreciate the warmth and character of analog sound. The model features customizable equalization settings, enabling users to tailor their listening experience to personal preferences or room acoustics.

Similarly, the A-9755 carries forward Onkyo’s commitment to superior sound quality, further enhancing user experience with its sophisticated circuitry. Notably, the A-9755 employs a highly precise 192 kHz/24-bit DAC, elevating digital audio playback to a new level of clarity and detail. This is complemented by a variable loudness control, which adjusts frequency response based on listening levels, ensuring consistent sound quality whether you're enjoying soft background music or cranking up the volume for a party.

Both models are designed with solid build quality and user-friendly interfaces, often featuring rotary knobs and clearly labeled buttons that enhance usability. Additionally, the aesthetically pleasing design fits well in both modern and traditional environments.

In conclusion, the Onkyo 9555 and A-9755 are strong contenders in the high-fidelity audio market, offering powerful amplification, versatile input options, and advanced technologies catering to diverse listening preferences. Whether for critical listening or casual enjoyment, these models are worthy of consideration for anyone looking to elevate their audio experience.