JVC RX-7042S, RX-7040B manual Troubleshooting, Problem, Possible Cause, Solution

Models: RX-7042S RX-7040B

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 Troubleshooting

PROBLEMPOSSIBLE CAUSE 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 display does not light up.

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. (See

 

 

page 7.)

The SPEAKERS ON/OFF 1 and SPEAKERS ON/OFF 2 buttons are not set correctly.

Press SPEAKERS ON/OFF 1 and SPEAKERS ON/OFF 2 correctly. (See page 15.)

 

An incorrect source is selected.

Select the correct source.

 

 

 

 

Muting is activated.

Press MUTING to cancel the mute. (See page 18.)

 

 

 

 

An incorrect input mode (analog or

Select the correct input mode (analog or digital). (See

 

digital) is selected.

pages 15 and 16.)

 

 

 

Sound from one speaker only.

Speaker signal cables are not connected

Check speaker wiring and reconnect if necessary. (See

 

properly.

page 7.)

 

 

 

“NO SUBWFR” appears on the display.

SUBWOOFER OUT ON/OFF is pressed

If subwoofer is connected, set “SUB WOOFER” to

 

while “SUB WOOFER” is set to “NO.”

“YES” so that SUBWOOFER OUT ON/OFF works.

 

 

 

Continuous hiss or buzzing during FM

Incoming signal is too weak.

Connect an outdoor FM antenna or contact your

reception.

 

dealer. (See page 6.)

 

 

 

 

The station is too far away.

Select a new station.

 

 

 

Noise is heard during FM/AM reception.

An incorrect antenna is used.

Check with your dealer to be sure you have the correct

 

 

antenna.

 

 

 

 

Antennas are not connected properly.

Check connections. (See pages 6 and 7.)

 

 

 

 

Ignition noise from automobiles.

Move the antenna farther from automobile traffic.

 

 

 

No sound effect such as the Surround

Analog Direct is turned on.

Turn off Analog Direct. (See page 17.)

mode, DSP mode and equalization

 

 

DVD MULTI is selected as the source

Select the source other than DVD MULTI. (See page

pattern.

(except digital equalization).

13.)

 

EX/ES (7.1-channel) reproduction cannot

Software or setting is not for Dolby

Play back software bearing the mark Dolby Digital

be done for Dolby Digital EX or DTS-ES

Digital-EX or DTS-ES software.

EX or DTS-ES.

software.

 

Set “EX/ES” setting to “AUTO” or “ON.” (See page

 

 

33.)

“OVERLOAD” starts flashing on the display.

Speakers are overloaded because of high volume.

1.Press SOLUTION STANDBY/ON on the front 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 circuit of speaker terminals.

Press Manual background STANDBY/ON on the front panel to turn off the receiver, 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 NG” starts flashing on the display.

The built-in microcomputer is not functioning correctly.

Press Manual background STANDBY/ON on the front panel to turn off the receiver. After unplugging the AC power cord, contact your dealer.

The STANDBY lamp lights up after

Very high voltage or very low voltage is

Press

STANDBY/ON on the front panel to turn

turning on the power, and soon the

applied to the receiver, or built-in power

off the receiver. After unplugging the AC power cord,

receiver turns off again (into standby

amplifier becomes out of order.

consult your dealer.

mode).

 

 

 

 

 

 

Remote control does not work.

There is an obstruction between the

Remove the obstruction.

 

remote sensor on the receiver and the

 

 

 

remote control.

 

 

 

 

 

 

Batteries are weak.

Replace batteries. (See page 6.)

Remote control does not work as you intend.

An incorrect remote control operation mode is selected.

Select the correct remote control operation mode. (See pages 40 and 41.)

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JVC RX-7042S, RX-7040B manual Troubleshooting, Problem, Possible Cause, Solution