JVC RX-7040B, RX-7042S manual Troubleshooting

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	Press SPEAKERS ON/OFF 1 and SPEAKERS
	SPEAKERS ON/OFF 2 buttons are not	ON/OFF 2 correctly. (See page 15.)
	set correctly.
	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	Speakers are overloaded because of high	1. Press	STANDBY/ON on the front panel to
display.	volume.	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 to turn
	circuit of speaker terminals.	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	Press	STANDBY/ON on the front panel to turn
	functioning correctly.	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	An incorrect remote control operation	Select the correct remote control operation mode. (See
intend.	mode is selected.	pages 40 and 41.)

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