Troubleshooting

In case of trouble, check the following before calling for service:

1.Are the connections made properly ?

2.Are you operating the unit properly following the user’s guide ?

3.Are the power ampliﬁers and speaker working properly ?

If the unit does not operate properly, check items shown in the following table.

If your trouble cannot be recovered with the remedy actions listed in the following table, malfunction of the internal circuitry is suspected; immediately unplug the power cable and contact your dealer, nearest Marantz authorized dealer or the Marantz Service Center in your country.

SYMPTOM	CAUSE	REMEDY
SR4021 cannot be turned up.	The power plug is not connected.	Connect the power plug to the outlet.

No sound and picture are output even	Mute is on.	Cancel mute using the remote control
when power is on.		unit.

	The input cable is not connected	See the connection diagram and connect
	correctly.	the cables correctly.

	The master volume control is turned all	Adjust the master volume.
	the way down.

	The function selector position is wrong.	Select correct position.

No speaker output.	The headphones are connected to the	Disconnect the headphones. (Speakers
	headphone jack.	will not output sound when headphones
		are connected.)

Incorrect Audio or Video for selected	Input cable connected incorrectly.	Connect the cable correctly by referring
source.		to the connection diagram.

Sound is only heard from one of front	The BALANCE control is set to one end.	Adjust BALANCE control.
speakers	One of the connection cords is	Connect the right and left connection
	disconnected.	cords securely.

FM or AM reception fails.	Antenna connection is incomplete.	Correctly connect the indoor FM and
		AM antennas to FM and AM antenna
		outlets.

Noise is heard during AM reception.	Reception is affected by other electrical	Try changing location where the AM
	ﬁ elds.	indoor antenna is set up.

Noise is heard during FM reception.	The radio waves from the broadcasting	Install an FM outdoor antenna.
	station are weak.

Cannot get programmed station when	Preset data has been erased.	Disconnecting power plug for long
the PRESET button is pressed.		periods of time will erase preset data.
		If that happens, input the preset data
		again.

Control with the remote control unit fails.	Batteries are consumed.	Replace all the batteries with new ones.

	Remote controller's function-key setting	Select different position from which
	is wrong.	equipment will be controlled.

	The distance between this SR4021 and	Move closer to this SR4021.
	the remote commander is too far.

	Something is blocking SR4021 and the	Remove offending object.
	remote commander.

GENERAL MALFUNCTION

If the equipment malfunctions, this may be because an electrostatic discharge or AC line interference has corrupted the information in the equipment memory circuits. Therefore:

-disconnect the plug from the AC line supply

-after waiting at least three minutes, reconnect the plug to the AC line supply

-re-attempt to operate the equipment

Memory backup

•In case a power outage occurs or the power cord is accidentally unplugged, the SR4021 is equipped with a backup function to prevent memory data such as the preset memory from being erased. This function provides approximately one week of memory storage.

HOW TO RESET THE UNIT

Should the operation or display seem to be abnormal, reset the unit with the following procedure.

The SR4021 is turned on, press and hold the SLEEP and SOURCE DIRECT buttons simultaneously for 3 seconds or more.

Remember that the procedure will reset the settings of the function selector, TUNER PRESET etc., to their initial settings.

ENGLISH

SR4021 specifications

The Marantz SR4021 is a powerful and sophisticated AV receiver, designed to cater to both audiophiles and casual listeners seeking an exceptional audio-visual experience. This model stands out in the Marantz lineup, showcasing the brand's commitment to high fidelity sound and innovative technology.

At the heart of the SR4021 is its dynamic power output, which delivers a robust 100 watts per channel across seven channels. This capability ensures that the receiver can accurately reproduce a wide range of audio content, from delicate musical nuances to the explosive sounds of modern cinema. The amplifier section employs discrete component design, which enhances sound clarity and preserves the integrity of audio signals, making it a reliable choice for both home theater setups and music systems.

One of the key features of the SR4021 is its support for advanced audio formats. The receiver is equipped with capabilities to decode popular surround sound formats such as Dolby Atmos and DTS:X, allowing users to enjoy immersive 3D audio experiences that transport them into the narrative of their favorite films. Additionally, it supports the latest high-resolution audio formats, ensuring that audiophiles can experience their music in studio-quality sound.

Another noteworthy aspect of the SR4021 is its extensive connectivity options. The receiver includes multiple HDMI inputs, allowing users to connect various devices such as gaming consoles, streaming devices, and Blu-ray players. The HDMI ports support 4K passthrough and HDR, making it an ideal choice for modern 4K television setups. Furthermore, the inclusion of Wi-Fi and Bluetooth connectivity enables seamless streaming from smartphones and tablets, providing versatility in how content can be enjoyed.

Marantz also prioritizes user-friendly operation with the SR4021. The intuitive on-screen interface makes it easy to navigate through settings and configurations, while the accompanying remote control offers direct access to frequently used functions. Additionally, the receiver is compatible with various control systems, allowing for integration into smart home environments.

In conclusion, the Marantz SR4021 is an exceptional AV receiver that combines high power output, advanced audio decoding capabilities, and extensive connectivity options, making it a top choice for both serious home theater enthusiasts and casual listeners alike. With its superior sound quality and user-friendly features, the SR4021 epitomizes Marantz's dedication to the art of audio.