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Troubleshooting

Use this chart to help you solve daily operational problems. If there is any problem you cannot solve, contact your JVC’s service center.

PROBLEM

POSSIBLE CAUSE

SOLUTION

 

 

 

 

 

The power does not come on.

The power cord is not plugged in.

Plug the power cord into an AC outlet.

 

 

 

 

 

No sound from speakers.

Speaker signal cables are not connected.

Check speaker wiring and reconnect if

 

 

 

necessary.

 

 

 

 

 

 

 

The SPEAKERS ON/OFF 1 and 2 buttons

Press SPEAKERS ON/OFF 1 and 2 buttons

 

 

are not set correctly.

correctly.

 

 

 

 

 

 

 

 

An incorrect source is selected.

Select the correct source.

 

 

 

 

 

 

 

Muting is activated.

Press MUTING to cancel the mute.

 

 

 

 

 

 

An incorrect input mode (analog or

Select the correct input mode (analog or

 

 

digital) is selected.

digital).

 

 

 

 

 

 

 

 

Connections are incorrect.

Check connections.

 

 

 

 

For analog connections, see pages 6 – 8.

 

 

 

For digital connections, see page 9.

 

 

 

 

 

Sound from one speaker only.

Speaker signal cables are not connected

Check speaker wiring and reconnect if

 

 

properly.

necessary.

 

 

 

 

 

 

 

The balance is set to one extreme.

Adjust the balance properly (see page 19).

 

 

 

 

 

Continuous hiss or buzzing during FM

Incoming signal is too weak.

Connect an outdoor FM antenna or contact

 

reception.

 

your dealer.

 

 

 

 

 

 

 

 

The station is too far away.

Select a new station.

 

 

 

 

 

 

 

An incorrect antenna is used.

Check with your dealer to be sure you have

 

 

 

the correct antenna.

 

 

 

 

 

 

 

 

Antennas are not connected properly.

Check connections.

 

 

 

 

 

 

Occasional cracking noise during FM

Ignition noise from automobiles.

Move the antenna farther from automobile

 

reception.

 

traffic.

 

 

 

 

 

 

Howling during record playing

Your turntable is too close to speakers.

Move speakers away from the turntable.

 

 

 

 

 

Noise is heard.

An earth (H) cable is not connected to the

Connect the cable to the AM (H) terminal on

 

 

AM (H) terminal on the rear panel.

the rear panel.

 

 

 

 

 

 

 

“OVERLOAD” starts flashing on the

Speakers are overloaded because of high

1. Press STANDBY/ON

on the front

 

display.

volume.

panel to turn off the receiver.

 

 

 

2. Stop the playback source.

 

 

 

3. Turn on the receiver again, and adjust the

 

 

 

volume.

 

 

 

 

 

 

 

 

Speakers are overloaded because of short

Press STANDBY/ON

on the front panel,

 

 

circuit of speaker terminals.

then check the speaker wiring.

 

 

 

If “OVERLOAD” does not disappear, unplug

 

 

 

the AC power cord, then plug it back again.

 

 

 

If speaker wiring is not short-circuited, contact

 

 

 

your dealer.

 

 

“DSP MICOM NG” starts flashing on the

The built-in microcomputer is not

Press STANDBY/ON

on the front panel to

 

display.

functioning correctly.

turn off the receiver. After unplugging the

 

 

 

power cord, consult your dealer.

 

 

 

 

 

 

The STANDBY lamp lights up after

The receiver is overloaded because of a

Press STANDBY/ON

on the front panel to

 

turning on the power, but soon the

high voltage.

turn off the receiver. After unplugging the

 

receiver turns off (into standby mode).

 

power cord, consult your dealer.

 

 

 

 

 

 

Remote control does not work.

There is an obstruction in front of the

Remove the obstruction.

 

 

 

remote sensor on the receiver.

 

 

 

 

Batteries are weak.

Replace batteries.

 

 

 

 

 

 

Remote control does not operate as you

The remote control is not ready for your

Press SOUND or source selecting buttons

 

intend.

intended operation.

first, then press the button you want to use.

 

 

 

(See pages 20, 27, 28, 34 – 39).

 

40

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JVC RX-7520VBK manual Troubleshooting, Problem Possible Cause Solution
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RX-7520VBK specifications

The JVC RX-7520VBK is a well-regarded audio receiver that combines advanced technology with user-friendly features, making it an ideal choice for both audiophiles and casual listeners. This model is designed to enhance the home theater experience, delivering high-quality sound and versatility in connectivity options.

One of the standout features of the JVC RX-7520VBK is its powerful amplification system. With a robust output of 100 watts per channel, this receiver can handle large speakers and create an immersive audio experience. It supports various surround sound formats, including Dolby Digital and DTS, allowing users to enjoy movies, music, and games in rich detail and clarity.

In terms of connectivity, the RX-7520VBK is equipped with multiple inputs and outputs, ensuring compatibility with a range of devices. It includes several HDMI ports, which support high-definition video and audio, making it suitable for connecting modern gaming consoles, Blu-ray players, and streaming devices. The receiver also features component video inputs and composite video connections, allowing users to incorporate older devices seamlessly.

The JVC RX-7520VBK is designed to support various audio formats, including MP3 and WMA, ensuring versatility in playback options. For users looking to enhance their music experience, the receiver features a built-in equalizer with multiple presets, enabling fine-tuning of audio settings to match individual preferences and room acoustics.

Furthermore, this model offers advanced technologies such as Virtual Surround for enhancing audio spatialization in two-channel audio sources. This feature is particularly useful for creating a more cinematic experience when watching movies or enjoying music in stereo.

User-friendliness is a key aspect of the RX-7520VBK. The front panel features a clear display and buttons that are easy to navigate, while the included remote control offers convenient access to various settings and functions without needing to get up from the couch.

In summary, the JVC RX-7520VBK is a versatile and powerful receiver, ideal for those looking to create a comprehensive home theater system. With its strong amplification, extensive connectivity options, support for multiple audio formats, and user-friendly design, it stands as a solid choice in the realm of audio receivers. Whether for casual listening or a full cinematic experience, the RX-7520VBK promises to elevate any sound setup.
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