JVC KD-R710 user service Maintenance, Specifications, Troubleshooting

Troubleshooting

	Symptom	Remedy/Cause
	Sound cannot be heard from the	• Adjust the volume to the optimum level.
	speakers.	• Make sure the unit is not muted/paused. (See page 1.)
		• Check the cords and connections.
General	“PROTECT” appears and no	Check to be sure the terminals of the speaker leads are covered
	operations can be done.	with insulating tape properly, then reset the unit. (See page 1.)
		If “PROTECT” does not disappear, consult your JVC car audio
		dealer or a company supplying kits.
	This unit does not work at all.	Reset the unit. (See page 1.)
	“AM,” “AUX IN,” or “BT AUDIO”	Check the <SRC SELECT> setting. (See “Menu operations” on
	cannot be selected.	page 5.)
FM/AM	SSM automatic presetting does	Store stations manually.
	not work.
	Static noise while listening to the	Connect the antenna firmly.
	radio.

	Symptom	Remedy/Cause
	The iPod/iPhone does not	• Check the connecting cable and its connection.
	turn on or does not work.	• Update the firmware version of the iPod/iPhone.
		• Charge the battery of the iPod/iPhone.
		• Reset the iPod/iPhone.
iPod/iPhone		• Check whether <IPOD SWITCH> setting is appropriate (see page 5).
	The sound is distorted.	Deactivate the equalizer on the iPod/iPhone.
	A lot of noise is generated.	Turn off (uncheck) the “VoiceOver” feature of the iPod. For details, visit
		<http://www.apple.com>.
	Playback stops.	The headphones are disconnected during playback. Restart the
		playback operation.
	“NO FILE” appears.	No tracks are stored. Import tracks to the iPod/iPhone.
	“RESTRICTED” appears.	Check whether the connected iPod/iPhone is compatible with this
		unit (see page 5).

	Disc cannot be played back.	Insert the disc correctly.
	• CD-R/CD-RW cannot be played	• Insert a finalized CD-R/CD-RW.
	back.	• Finalize the CD-R/CD-RW with the component which you used
	• Tracks on the CD-R/CD-RW	for recording.
playback	cannot be skipped.
	Disc can be neither played back	• Unlock the disc. (See page 2.)
	nor ejected.	• Eject the disc forcibly. (See page 1.)
Disc	Disc sound is sometimes	• Stop playback while driving on rough roads.
	interrupted.	• Change the disc.
		• Check the cords and connections.
	“NO DISC” appears.	Insert a playable disc into the loading slot.
	“PLEASE” and “EJECT” appear	Press 0, then insert a disc correctly.
	alternately.
	Disc cannot be played back.	• Use a disc with MP3/WMA tracks recorded in a format
		compliant with ISO 9660 Level 1, Level 2, Romeo, or Joliet.
		• Add the extension code <.mp3> or <.wma> to the file names.
	Noise is generated.	Skip to another track or change the disc. (Do not add the
		extension code <.mp3> or <.wma> to non-MP3 or WMA tracks.)
playback	A longer readout time is required	Do not use too many hierarchical levels and folders.
	(“READING” keeps flashing on the
	display).

Maintenance

How to clean the connectors

Wipe the connectors with a cotton swab or cloth moistened with alcohol.

Connectors

Moisture condensation

Moisture may condense on the lens inside the unit. Eject the disc and leave the unit turned on for a few hours until the moisture has evaporated.

To keep discs clean

Wipe in a straight line from center of disc to edge. Do not use liquid cleaners, thinners, or benzene.

To play new discs

Remove any rough areas from the inner and outer edges of the disc.

Do not use the following discs:

•Single CD—8 cm (3-3/16”) disc

•Warped disc

•Disc with sticker and sticker residue

•Disc with stick-on label

•Unusual shape disc

•C-thru Disc (semi-transparent disc)

•Disc with transparent or semi-transparent parts on its recording area

MP3/WMA	Tracks are not played back in the	The playback order is determined by the file name. Folder with
	order you have intended.	numbers on the initial as their names are sorted in numerical
		order. However, folder with no numbers on the initial of their
		names are sorted according to the file system of the CD.
	“NOT SUPPORT” appears and track	Skip to the next track encoded in an appropriate format or to
	skips.	the next non-copy-protected WMA track.
	The elapsed playing time is not	This sometimes occurs during playback. This is caused by how
	correct.	the tracks are recorded on the disc.
	The correct characters are not	This unit can only display letters (upper case), numbers,
	displayed (e.g. album name).	and a limited number of symbols. (See page 2.)
	Noise is generated.	The track played back is not an MP3/WMA/WAV track. Skip to
		another file. (Do not add the extension code <.mp3>, <.wma>,
		or <.wav> to non-MP3/WMA/WAV tracks.)
	“READING” keeps flashing on the	• Readout time varies depending on the USB device.
	display.	• Do not use too many hierarchy or folders.
		• Turn off the power then on again.
		• Reattach the USB device again.
	“NO FILE” appears.	Check whether the selected folder, the connected USB device,
playback		or the iPod/iPhone contains a playable file.
	“NOT SUPPORT” appears and track	Check whether the track is a playable file format.
	skips.
	Tracks/folders are not played back	The playback order is determined by the file name. Folders
device
	in the order you have intended.	with numbers on the initial of their names are sorted in
		numerical order. However, folders with no numbers on the
USB
		initial of their names are sorted according to the file system of
		the USB device.
	• “READ FAILED” or “NO USB”	• Check whether the connected USB device or the iPod/iPhone
	appears.	is compatible with this unit.
	• The unit cannot detect the USB	• The USB device is not connected properly. Connect the USB
	device.	device again.
	While playing a track, sound is	The tracks have not been properly copied into the USB device.
	sometimes interrupted.	Copy tracks again into the USB device, and try again.
	Correct characters are not	This unit can only display letters (upper case), numbers, and a
	displayed (e.g. album name).	limited number of symbols. (See page 2.)
	The unit does not detect the	• Search from the Bluetooth device again.
	Bluetooth device.	• Reset the unit, then search from the Bluetooth device again.
	The unit does not make pairing	Enter the same PIN code for both the unit and target device.
	with the Bluetooth device.
	Echo or noise occurs.	Adjust the microphone unit’s position.
	Phone sound quality is poor.	• Reduce the distance between the unit and the Bluetooth
		mobile phone.
		• Move the car to a place where you can get a better signal
		reception.
	The unit does not response when	You may have tried to copy the same entries (as stored) to the
Bluetooth	you tried to copy the phonebook	unit. Press DISP or BACK to exit.
	to the unit.
	The sound is interrupted or	• Reduce the distance between the unit and the Bluetooth
	skipped during playback of a	audio player.
	Bluetooth audio player.	• Disconnect the device connected for Bluetooth Phone.
		• Turn off, then turn on the unit.
		• Connect the player again, when the sound is not yet restored.
	The connected audio player	• Check whether the connected audio player supports AVRCP
	cannot be controlled.	(Audio/Video Remote Control Profile). (Operations depend on
		the connected audio player.)
		• Disconnect and connect the Bluetooth player again.
	“VOICE DIAL” is not successful.	• Use “VOICE DIAL” calling method in a more quiet environment.
		• Reduce the distance from the microphone when you speak
		the name.
		• Change the <NR/EC MODE> to <OFF> (see page 3), then try
		again.

Specifications

AUDIO AMPLIFIER SECTION

Power Output:

20 W RMS × 4 Channels at 4 Ω and ≤ 1% THD+N

Signal-to-Noise Ratio:

80 dBA (reference: 1 W into 4 Ω)

Load Impedance:		4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range:
Bass:	±12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) ;
	Q1.0, Q1.25, Q1.5, Q2.0
Middle:	±12 dB (0.5 kHz, 1.0 kHz, 1.5 kHz,
	2.5 kHz) ; Q0.75, Q1.0, Q1.25
Treble:	±12 dB (10.0 kHz, 12.5 kHz, 15.0 kHz,

17.5kHz) ; Q (Fixed)

Frequency Response: 40 Hz to 20 000 Hz Line-Out Level/ Subwoofer-Out Level/Impedance:

2.5V/20 kΩ load (full scale)

Output Impedance: 1 kΩ

Other Terminal:		USB input terminal, USB
		cable, AUX (auxiliary) input
		jack, Antenna input
TUNER SECTION
Frequency Range:
FM:	87.5 MHz to 107.9 MHz
	(with channel interval set to 100 kHz or
	200 kHz)
	87.5 MHz to 108.0 MHz
	(with channel interval set to 50 kHz)
AM:	530 kHz to 1 710 kHz
	(with channel interval set to 10 kHz)
	531 kHz to 1 602 kHz
	(with channel interval set to 9 kHz)

[FM Tuner]

Usable Sensitivity: 9.3 dBf (0.8 μV/75 Ω)

50 dB Quieting Sensitivity: 16.3 dBf (1.8 μV/75 Ω)

Alternate Channel Selectivity (400 kHz): 65 dB

Frequency Response: 40 Hz to 15 000 Hz

Stereo Separation: 40 dB

[AM Tuner]

Sensitivity/Selectivity: 20 μV/40 dB

CD PLAYER SECTION
Type:	Compact disc player

Signal Detection System: Non-contact optical pickup

	(semiconductor laser)
Number of channels:	2 channels (stereo)
Frequency Response:	5 Hz to 20 000 Hz
Dynamic Range:	96 dB
Signal-to-Noise Ratio:	98 dB
Wow and Flutter:	Less than measurable limit
MP3 Decoding Format:	MPEG1/2 Audio Layer 3

Max. Bit Rate: 320 kbps

WMA (Windows Media® Audio) Decoding Format: Max. Bit Rate: 320 kbps

USB SECTION
USB Standard:		USB 1.1, USB 2.0
Data Transfer Rate (Full Speed): Max. 12 Mbps
Compatible Device:		Mass storage class (except
		HDD)
Compatible File System: FAT 32/16/12
Playable Audio Format:		MP3/WMA/WAV
Max. Current:		DC 5 V	500 mA
BLUETOOTH SECTION
Version:	Bluetooth 2.0 certified
Power Class:	Class 2 Radio (possible distance 10 m)
Service Area:	10 m
Profile:	HFP 1.5, OPP 1.1, A2DP 1.2, AVRCP 1.3,
	PBAP 1.0

GENERAL

Power Requirement:

Operating Voltage: DC 14.4 V (11 V to 16 V allowance)

Grounding System: Negative ground Allowable Operating Temperature:

0°C to +40°C (32°F to 104°F)

Dimensions (W × H × D): Installation Size (approx.):

182 mm × 52 mm × 160 mm (7-3/16” × 2-1/16” × 6-5/16”)

Panel Size (approx.):

188 mm × 58 mm × 6 mm (7-7/16” × 2-5/16” × 1/4”)

Mass (approx.): 1.4 kg (3.1 lbs) (excluding accessories)

Design and specifications are subject to change without notice.

If a kit is necessary for your car, consult your telephone directory for the nearest car audio speciality shop.

JVC bears no responsibility for any loss of data in an iPod/iPhone and/or USB mass storage class device while using this System.

Having TROUBLE with

operation?

Please reset your unit

Still having trouble?? Call 1-800-252-5722

(USA ONLY)

http://www.jvc.com

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