JVC KD-SX939/SX930 manual Troubleshooting, Symptoms Causes Remedies

TROUBLESHOOTING

What appears to be trouble is not always serious. Check the following points before calling a service center.

Symptoms		Causes		Remedies
• CD cannot be played back.	CD is inserted upside down.		Insert the CD correctly.
• CD sound is sometimes	You are driving on rough		Stop CD play while driving on
interrupted.	roads.		rough roads.
	CD is scratched.		Change the CD.
	Connections are incorrect.		Check the cords and
			connections.
• Sound cannot be heard from	The volume control is turned		Adjust it to the optimum level.
the speakers.	to the minimum level.
	Connections are incorrect.		Check the cords and
			connections.
• SSM (Strong-station	Signals are too weak.		Store stations manually.
Sequential Memory)
automatic preset does not
work.
• Static noise while listening	The antenna is not connected		Connect the antenna firmly.
to the radio.	firmly.
• “NO DISC” appears on the	No CD is in the loading slot (or		Insert CD.
display.	in the magazine).
	CD is inserted incorrectly.		Insert it correctly.
• “RESET 8” appears on the	This unit is not connected to a		Connect this unit and the CD
display.	CD changer correctly.		changer correctly and press
			the reset button of the CD
			changer.
• “RESET 1 – RESET 7”			Press the reset button of the
appears on the display.			CD changer.
• CD can be neither played	The CD player may function		Press CD and SEL at the
back nor ejected.	incorrectly.		same time for more than 2
			seconds. (“PLEASE EJECT”
			appears on the display.) When
			you open the control panel by
			pressing 0, be careful not to
			drop the CD when it ejects.
• The unit does not work at	The built-in microcomputer		Press		and SEL at
all.	may function incorrectly due to		the same time for more than 2
	noise, etc.		seconds to reset the unit. (The
			clock setting and preset
			stations stored in memory are
			erased.)

28