JVC KD-G645, KD-G646 User Manual

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CD RECEIVER KD-G646/KD-G645

KD-G646/KD-G645

For canceling the display demonstration, see page 6.

For installation and connections, refer to the separate manual.

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INSTRUCTIONS

GET0502-005A

[UT]

Thank you for purchasing a JVC product.

Please read all instructions carefully before operation, to ensure your complete understanding and to obtain the best

possible performance from the unit.

IMPORTANT FOR LASER PRODUCTS

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1. CLASS 1 LASER PRODUCT

2. CAUTION: Do not open the top cover. There are no user serviceable parts inside the unit; leave all servicing to qualified service personnel.

3. CAUTION: Visible and/or invisible class 1M laser radiation when open. Do not view directly with optical instruments.

4. REPRODUCTION OF LABEL: CAUTION LABEL, PLACED OUTSIDE THE UNIT.

How to reset your unit

[European Union only]

Warning:

If you need to operate the unit while driving, be sure to look around carefully or you may be involved in a traffic accident.

• Your preset adjustments will also be erased.

How to forcibly eject a disc

Caution on volume setting:

Digital devices (CD/USB) produce very little noise compared with other sources. Lower the volume before playing these digital sources to avoid damaging the speakers by sudden increase of the output level.

• Be careful not to drop the disc when it ejects.

• If this does not work, reset your unit.

How to use the M MODE button

If you press M MODE, the unit goes into functions mode, then the number buttons and 5/∞ buttons will work as different function buttons.

Ex.: When number button 2 works as

MO (monaural) button.

To use these buttons for their original functions again after pressing M MODE, wait for 5 seconds

without pressing any of these buttons until the functions mode is cleared, or press M MODE again.

Detaching the control panel

CONTENTS

Control panel —KD-G646/KD-G645 ....... 4

Remote controller —

Getting started ................................ 6

Basic operations ................................................... 6

Radio operations ............................. 7

Disc/USB device operations .............. 8

Playing a disc in the unit ..................................... 8

Playing from a USB device .................................... 8

Sound adjustments .......................... 11

General settings — PSM .................. 12

Other external component

operations ................................... 14

Title assignment .............................. 14

Maintenance ................................... 15

More about this unit ........................ 16

Troubleshooting .............................. 19

Specifications .................................. 21

RM-RK50 ........... 5

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Attaching the control panel

The control panel illustrations used for explanation in this manual is of KD-G645.

For safety...

• Do not raise the volume level too much, as this will block outside sounds, making driving dangerous.

• Stop the car before performing any complicated operations.

Temperature inside the car...

If you have parked the car for a long time in hot or cold weather, wait until the temperature in the car becomes normal before operating the unit.

Control panel — KD-G646/KD-G645

Parts identification

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1 5 (up) / ∞ (down) buttons 2 0 (eject) button 3 (standby/on attenuator) button 4 Control dial 5 Remote sensor

Display window

DO NOT expose the remote sensor to strong light

(direct sunlight or artificial lighting).

6 BAND button 7 Loading slot 8 Display window 9 EQ (equalizer) button p DISP (display) button q (control panel release) button w SRC (source) button e 4 /¢ buttons r AUX (auxiliary) button t SEL (select) button y M MODE button u MO (monaural) button i SSM (Strong-station Sequential Memory) button

o Number buttons ; RPT (repeat) button a RND (random) button s AUX (auxiliary) input jack d USB (Universal Serial Bus) input jack f Source display / Track number / Folder number /

Time countdown indicator

g Tr (track) indicator h DISC indicator j Playback mode / item indicators—RND (random),

(disc), (folder), RPT (repeat)

k Tuner reception indicators—ST (stereo),

MO (monaural)

l Sound mode (iEQ: intelligent equalizer) indicators

—CLASSIC, HIP HOP, JAZZ, ROCK, POPS, USER

/ LOUD (loudness) indicator z EQ (equalizer) indicator x Disc information indicators—

TAG (Tag information), (folder), (track/file)

c Main display

Remote controller — RM-RK50

Installing the lithium coin battery

(CR2025)

Aim the remote controller directly at the remote sensor on the unit. Make sure there is no obstacle in between.

Warning:

• Do not install any battery other than CR2025 or its equivalent; otherwise, it may explode.

• Do not leave the remote controller in a place (such as the dashboard) exposed to direct sunlight for a long time; otherwise, it may explode.

• Store the battery in a place where children cannot reach to avoid the risk of accidents.

• To prevent the battery from over-heating, cracking, or starting a fire:

– Do not recharge, short, disassemble, heat the

battery, or dispose of it in a fire.

– Do not leave the battery with other metallic

materials.

– Do not poke the battery with tweezers or similar

tools.

– Wrap the battery with tape and insulate when

throwing away or saving it.

Main elements and features

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1 (standby/on/attenuator) button

• Turns the power on if pressed briefly or attenuates the sound when the power is on.

• Turns the power off if pressed and held.

2 5 U (up) / D (down) ∞ buttons

• Changes the FM/AM bands with 5 U.

• Changes the preset stations with D ∞.

• Changes the folder of the MP3/WMA.

3 VOL – / VOL + buttons

• Adjusts the volume level.

4 SOUND button

• Selects the sound mode (iEQ: intelligent equalizer).

5 SOURCE button

• Selects the source.

6 2 R (reverse) / F (forward) 3 buttons

• Searches for stations if pressed briefly.

• Fast-forwards or reverses the track if pressed and held.

• Changes the track if pressed briefly.

Getting started

Basic operations

~ Turn on the power.

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* You cannot select these sources if they are not

ready or not connected.

! For FM/AM tuner

⁄ Adjust the volume.

Volume level appears.

Basic settings

• See also “General settings — PSM” on pages 12 and

13.

1 Canceling the display demonstrations Select “DEMO,” then “DEMO OFF.” 2 Setting the clock Select “CLOCK HOUR,” then adjust the hour. Select “CLOCK MIN” (minute), then adjust the

minute.

3 Finish the procedure.

To check the current clock time while the power is turned off

Clock time is shown on the display for about 5 seconds. See also page 13.

@ Adjust the sound as you want. (See

pages 11 and 12.)

To drop the volume in a moment (ATT)

To restore the sound, press the button again.

To turn off the power

Radio operations

Lights up when receiving an FM stereo broadcast with sufficient signal strength.

! Start searching for a station.

When a station is received, searching stops. To stop searching, press the same button again.

To tune in to a station manually

In step ! above...

When an FM stereo broadcast is hard to receive

Lights up when monaural mode is activated.

Reception improves, but the stereo effect will be lost.

To restore the stereo effect, repeat the same procedure. “MONO OFF” appears and the MO indicator goes off.

Storing stations in memory

You can preset six stations for each band.

FM station automatic presetting —

SSM (Strong-station Sequential Memory)

1 Select the FM band (FM1 – FM3) you want to

store into.

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Select a desired station frequency.

“SSM” flashes, then disappears when automatic presetting is over.

Local FM stations with the strongest signals are searched and stored automatically in the FM band.

Continued on the next page

Manual presetting

Ex.: Storing the FM station of 92.50MHz into preset

number 4 of the FM1 band.

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Preset number flashes for a while.

Disc / USB device operations

: For built-in CD player operations.

: For external USB device operations.

Playing a disc in the unit

Listening to a preset station

2 Select the preset station (1 – 6) you want.

To check the other information while listening to an FM or AM station

Frequency = Clock = Station name * = (back to the

beginning)

* If no title is assigned to a station, “NO NAME” appears.

To assign a title to a station, see page 14.

All tracks will be played repeatedly until you change the source or eject the disc.

To stop play and eject the disc

• Press SRC to listen to another playback source.

Playing from a USB device

This unit can play MP3/WMA tracks stored in a USB device (except HDD). All tracks in the USB device will be played repeatedly until you change the source.

USB input jack

To fast-forward or reverse the track

USB memory

If a USB device has been attached...

Playback starts from where it has been stopped previously.

• If a different USB device is currently attached, playback starts from the beginning.

To detach the USB device, straightly pull it out from the unit.

• Removing the USB device will also stop playback. Then, press SRC to listen to another playback source.

Cautions:

• Avoid using the USB device if it might hinder your

safety driving.

• Do not pull out or attach the USB device

repeatedly while “READING” appears on the display.

• Do not start a car engine if a USB device is

connected.

• This unit may not be able to play the files

depending on the type of the USB device.

• Operation and power supply may not work as

intended for some USB devices.

• You cannot connect a computer to the USB input

jack of the unit.

• Make sure all important data has been backed up

to avoid losing the data.

• Do not leave a USB device in the car, expose to

direct sunlight, or high temperature to avoid deformation or cause damage to the USB device.

• Some USB devices may not work immediately

after you turn on the power.

• For more details about USB operations, see pages

17 and 18.

To go to the next or previous track

To go to the next or previous folder (for MP3/WMA)

To locate a particular track (for CD) or folder (for MP3/WMA) directly

To select a number from 01 – 06:

To select a number from 07 – 12:

• To use direct folder access on MP3/WMA, it is required that folders are assigned with 2-digit numbers at the beginning of their folder names— 01, 02, 03, and so on.

To select a particular track in a folder (for MP3/WMA):

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Other main functions

Skipping tracks quickly during play

Changing the display information

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• For MP3/WMA, you can skip tracks within the same folder

Ex.: To select track 32 while playing tracks whose

number is a single digit (1 to 9)

Each time you press the button, you can skip 10 tracks.

• After the last track, the first track will be selected and vice versa.

Prohibiting disc ejection

You can lock a disc in the loading slot.

While playing an audio CD or CD Text

A = Disc title/performer *1 = Track

title *1 [ ] = B = (back to the beginning)

While playing an MP3/WMA disc or

USB device

• When “TAG DISPLAY” is set to “TAG ON” (see page 13)

A = Album name/performer (folder

name *2) [ ] = Track title (file name *2) [ ] = B = (back to the

beginning)

• When “TAG DISPLAY” is set to “TAG OFF”

A = Folder name [ ] = File name

[ ] = B = (back to the beginning)

A : Clock with the current track number B : The elapsed playing time with the current track

number

[ ] : Corresponding indicator lights up on the display

*1 If the current disc is an audio CD, “NO NAME” appears. *2 If an MP3/WMA file does not have Tag information,

folder name and file name appear. In this case, the TAG indicator will not light up.

To cancel the prohibition, repeat the same procedure.

Selecting the playback modes

You can use only one of the following playback modes at a time.

Sound adjustments

You can select a preset sound mode suitable to the music genre (iEQ: intelligent equalizer).

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2 Select your desired playback mode.

7 Repeat play

Mode Plays repeatedly

TRACK RPT : The current track. [ FOLDER RPT * : All tracks of the current folder.

[ ]

RPT OFF : Cancels.

7 Random play

Mode Plays at random

FOLDER RND * : All tracks of the current folder,

then the tracks of the next folder and so on. [

ALL RND : All tracks of the current disc or

USB device. [ ]

RND OFF : Cancels.

Only while playing a media (MP3/WMA/USB).

[ ] : Corresponding indicator lights up on the

display

Preset values

BAS MID TRE LOUD

Indication (For) USER

(Flat sound)

]

ROCK

(Rock or disco music)

CLASSIC

(Classical music)

POPS

(Light music)

HIP HOP

(Funk or rap music)

JAZZ

(Jazz music)

BAS: Bass MID: Mid-range TRE: Treble LOUD: Loudness

00 00 00 OFF

+03 00 +02 OFF

+01 00 +03 OFF

+02 +01 +02 OFF

+04 –02 +01 OFF

+03 00 +03 OFF

Adjusting the sound

You can adjust the sound characteristics to your preference.

* Displayed only when “L/O MODE” is set to “SUB.W”

(see page 13).

Continued on the next page

Indication, [Range]

, [–06 to +06]

BASS * Adjust the bass.

(mid-range), [–06 to +06]

MIDDLE *

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Adjust the mid-range frequencies sound level.

TREBLE *

, [–06 to +06]

Adjust the treble.

FADER *

, [R06 to F06]

Adjust the front and rear speaker output balance.

BALANCE *

, [L06 to R06]

Adjust the left and right speaker output balance.

(loudness), [LOUD ON or LOUD OFF]

LOUD * Boost low and high frequencies to produce a well-balanced sound at a low volume level.

, [00 to 08, initial: 04]

SUB.W * Adjust the subwoofer output level.

VOL ADJ (volume adjust), [–05 to +05, initial: 00] Adjust the volume level of each source (except FM), in relation to the FM volume level. The volume level will automatically increase or decrease when you change the source.

• Before making an adjustment, select the source you want to adjust.

VOLUME, [00 to 50 or 00 to 30] *

Adjust the volume.

When you adjust the bass, mid-range, or treble, the

adjustment you have made is stored for the currently selected sound mode (iEQ) including “USER.”

*2 If you are using a two-speaker system, set the fader

level to “00.” *3 This adjustment will not affect the subwoofer output. *4 The adjustment made (LOUD ON/LOUD OFF) will be

applied to all sound modes. *5 Displayed only when “L/O MODE” is set to “SUB.W”

(see page 13). *6 Depending on the amplifier gain control setting. (See

page 13 for details.)

General settings — PSM

You can change PSM (Preferred Setting Mode) items listed in the table on page 13.

2 Select a PSM item.

3 Adjust the PSM item selected.

4 Repeat steps 2 and 3 to adjust other PSM

items if necessary.

5 Finish the procedure.

Indications Item

Selectable settings, [reference page]

( : Initial)

DEMO

Display demonstration

CLOCK DISP * Clock display

• DEMO ON

• DEMO OFF

• CLOCK ON

• CLOCK OFF

: The display demonstration will be activated automatically if no

operation is done for about 20 seconds, [6].

: Cancels.

The clock time is shown on the display at all times when the power is

turned off

: Cancels; pressing DISP will show the clock time for about 5 seconds

when the power is turned off, [6].

CLOCK HOUR

1 – 12 [Initial: 1 (1:00)], [6]

Hour adjustment

CLOCK MIN

00 – 59 [Initial: 00 (1:00)], [6]

Minute adjustment

DIMMER

Dimmer

SCROLL * Scroll

• AUTO

• ON

• OFF

• ONCE

• AUTO

• OFF

: Dims the display and button illumination when you turn on the

headlights. : Activates dimmer. : Cancels.

: Scrolls the displayed information once. : Repeats scrolling (at 5-second intervals). : Cancels.

• Pressing DISP for more than one second can scroll the display

regardless of the setting.

L/O MODE

Line output mode

• REAR

• SUB.W

: Select if the REAR LINE OUT terminals are used for connecting the

speakers (through an external amplifier). : Select if the REAR LINE OUT terminals are used for connecting a

subwoofer (through an external amplifier).

SUB.W FREQ * Subwoofer cutoff frequency

TAG DISPLAY

Tag display

AMP GAIN

Amplifier gain control

If the power supply is not interrupted by turning off the ignition key of your car, it is recommended to select

• LOW

• MID

• HIGH

• TAG ON

• TAG OFF

•

LOW POWER

•

HIGH POWER

: Frequencies lower than 90 Hz are sent to the subwoofer. : Frequencies lower than 135 Hz are sent to the subwoofer. : Frequencies lower than 180 Hz are sent to the subwoofer.

: Shows the Tag information while playing MP3/WMA tracks, [10]. : Cancels.

: VOLUME 00 – VOLUME 30 (Select this if the maximum power of the

speaker is less than 50 W to avoid damaging the speaker.) : VOLUME 00 – VOLUME 50

“CLOCK OFF” that you save the car’s battery. *2 Some characters or symbols will not be shown correctly (or will be blanked) on the display. *3 Displayed only when “L/O MODE” is set to “SUB.W.”

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Other external component operations

You can connect an external component to the

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AUX (auxiliary) input jack on the control panel.

Portable audio player, etc

3.5 mm stereo mini plug (not supplied)

• You can also select “AUX IN” as the playback source by pressing the SRC (source) button.

Ÿ Turn on the connected component and

start playing the source.

Title assignment

You can assign titles to 30 station frequencies (FM and AM) and up to 8 characters for each station name.

1 Select FM/AM.

2 Show the title entry screen.

3 Assign a title.

1 Select a character.

2 Move to the next (or previous) character

position.

! Adjust the volume.

⁄ Adjust the sound as you want. (See

pages 11 and 12.)

To check the other information while listening to an external component

Clock Ô AUX IN

3 Repeat steps 1 and 2 until you finish

entering the title.

4 Finish the procedure.

To erase the entire title

In step 2 above...

Maintenance

How to clean the connectors

Frequent detachment will deteriorate the connectors. To minimize this possibility, periodically wipe the connectors with a cotton swab or cloth moistened with alcohol, being careful not to damage the connectors.

Connectors

Moisture condensation

Moisture may condense on the lens inside the unit in the following cases:

• After starting the heater in the car.

• If it becomes very humid inside the car. Should this occur, the unit may malfunction. In this case, eject the disc and leave the unit turned on for a few hours until the moisture has evaporated.

How to handle discs

When removing a disc from its case, press down the center holder

of the case and lift the disc out, holding it by the edges.

• Always hold the disc by the edges. Do not touch its recording surface.

When storing a disc in its case, gently insert the disc around the center holder (with the printed surface facing up).

• Make sure to store discs in cases after use.

Center holder

To keep discs clean

A dirty disc may not play correctly. If a disc does become dirty, wipe it with a soft cloth in a straight line from center to edge.

• Do not use any solvents (for example, conventional record cleaner, spray, thinner, benzine, etc.) to clean discs.

To play new discs

New discs may have some rough spots around the inner and outer edges. If such a disc is used, this unit may reject the disc. To remove these rough spots, rub the edges with a pencil or ball-point pen, etc.

Do not use the following discs:

Single CD (8 cm disc)

Sticker and

sticker residue

Unusual shape

Warped disc

Stick-on label

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More about this unit

Basic operations

Turning on the power

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• By pressing SRC or AUX on the unit, you can also turn on the power. If the source is ready, playback also starts.

Turning off the power

• If you turn off the power while listening to a disc, disc play will start from where it had been stopped previously next time you turn on the power.

Tuner operations

Storing stations in memory

• During SSM search...

– All previously stored stations are erased and the

stations are stored anew.

– Received stations are preset in No. 1 (lowest

frequency) to No. 6 (highest frequency).

– When SSM is over, the station stored in No. 1 will

be automatically tuned in.

• When storing a station manually, the previously preset station is erased when a new station is stored in the same preset number.

Disc operations

Caution for DualDisc playback

• The Non-DVD side of a “DualDisc” does not comply with the “Compact Disc Digital Audio” standard. Therefore, the use of Non-DVD side of a DualDisc on this product may not be recommended.

General

• This unit has been designed to reproduce CDs/CD Texts, and CD-Rs (Recordable)/CD-RWs (Rewritable) in audio CD (CD-DA), MP3 and WMA formats.

• MP3 and WMA “tracks” (words “file” and “track” are used interchangeably) are recorded in “folders.”

• When a disc is inserted upside down, “PLEASE” and “EJECT appear alternately on the display. Press 0 to eject the disc.

• While fast-forwarding or reversing on an MP3 or WMA disc, you can only hear intermittent sounds.

Playing a CD-R or CD-RW

• Use only “finalized” CD-Rs or CD-RWs.

• This unit can only play back files of the same type as those which are detected first if a disc includes both audio CD (CD-DA) files and MP3/WMA files.

• This unit can play back multi-session discs; however, unclosed sessions will be skipped while playing.

• Some CD-Rs or CD-RWs may not be played back on this unit because of their disc characteristics, or for the following reasons:

– Discs are dirty or scratched. – Moisture condensation has occurred on the lens

inside the unit. – The pickup lens inside the unit is dirty. – The files on the CD-R/CD-RW are written using the

“Packet Write” method. – There are improper recording conditions (missing

data, etc.) or media conditions (stained, scratched,

warped, etc.).

• CD-RWs may require a longer readout time since the

reflectance of CD-RWs is lower than that of regular CDs.

• Do not use the following CD-Rs or CD-RWs: – Discs with stickers, labels, or protective seal stuck

to the surface. – Discs on which labels can be directly printed by an

ink jet printer. Using these discs under high temperature or high

humidity may cause malfunctions or damage to the unit.

Playing an MP3/WMA disc

• This unit can play back MP3/WMA files with the extension code <.mp3> or <.wma> (regardless of the letter case—upper/lower).

• This unit can show the names of albums, artists (performer), and Tag (Version 1.0, 1.1, 2.2, 2.3, or

2.4) for MP3 files and for WMA files.

• This unit can display only one-byte characters. No other characters can be correctly displayed.

• This unit can play back MP3/WMA files meeting the conditions below:

– Bit rate: 8 kbps — 320 kbps – Sampling frequency: 48 kHz, 44.1 kHz, 32 kHz (for MPEG-1) 24 kHz, 22.05 kHz, 16 kHz (for MPEG-2) 12 kHz, 11.025 kHz, 8 kHz (for MPEG-2.5) – Disc format: ISO 9660 Level 1/ Level 2, Romeo,

Joliet, Windows long file name – Bit rate of WMA: 16 kbps — 32 kbps (Sampling frequency: 22.05 kHz) 32 kbps — 320 kbps (Sampling frequency: 48 kHz,

44.1 kHz, 32 kHz)

• The maximum number of characters for file/folder

names vary depending on the disc format used (includes 4 extension characters—<.mp3> or

<.wma>). – ISO 9660 Level 1: up to 12 characters – ISO 9660 Level 2: up to 31 characters – Romeo: up to 128 characters – Joliet: up to 64 characters – Windows long file name: up to 128 characters

• This unit can recognize a total of 512 files, 255

folders, and 8 hierarchical levels.

• This unit can play back files recorded in VBR (variable

bit rate). Files recorded in VBR have a discrepancy in the

elapsed time display, and do not show the actual

elapsed time. In particular, this difference becomes

noticeable after performing the search function.

• This unit cannot play back the following files: – MP3 files encoded in MP3i and MP3 PRO format. – MP3 files encoded in an inappropriate format. – MP3 files encoded with Layer 1/2. – WMA files encoded in lossless, professional, and

voice format. – WMA files not based on Windows Media® Audio. – WMA files copy-protected with DRM. – Files which have data such as WAVE, ATRAC3, etc.

• The search function works but search speed is not

constant.

Playing MP3/WMA tracks from a USB device

• While playing from a USB device, the playback order

may differ from other players.

• This unit may be unable to play back some USB

devices or some files due to their characteristics or recording conditions.

• Depending on the shape of the USB devices and

connection ports, some USB devices may not be attached properly or the connection might be loose.

• Connect one USB mass storage class device to the unit

at a time. Do not use a USB hub.

• If the connected USB device does not have the correct

files, “NO FILE” appears.

• This unit can show Tag (Version 1.0, 1.1, 2.2, 2.3, or

2.4) for MP3 files and for WMA files.

• This unit can play back MP3/WMA files meeting the

conditions below: – Bit rate of MP3: 16 kbps — 320 kbps – Sampling frequency of MP3: 48 kHz, 44.1 kHz, 32 kHz (for MPEG-1) 24 kHz, 22.05 kHz, 16 kHz (for MPEG-2) 12 kHz, 11.025 kHz, 8 kHz (for MPEG-2.5) – Bit rate of WMA: 16 kbps — 32 kbps

(Sampling frequency: 22.05 kHz)

32 kbps — 320 kbps

(Sampling frequency: 48 kHz, 44.1 kHz, 32 kHz)

• This unit can play back MP3 files recorded in VBR

(variable bit rate).

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Continued on the next page

• The maximum number of characters for: – Folder names : 25 characters – File names : 25 characters – MP3 Tag : 128 characters – WMA Tag : 64 characters

• This unit can recognize a total of 2 500 files, 255

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folders (999 files per folder), and of 8 hierarchies.

• This unit does not support SD card reader.

• This unit cannot recognize a USB device whose rating is other than 5 V and exceeds 500 mA.

• USB devices equipped with special functions such as data security functions cannot be used with the unit.

• Do not use a USB device with 2 or more partitions.

• This unit may not recognized a USB device connected through a USB card reader.

• This unit may not play back files in a USB device properly when using a USB extension cord.

• This unit cannot play back the following files:

– MP3 files encoded with MP3i and MP3 PRO format. – MP3 files encoded in an inappropriate format. – MP3 files encoded with Layer 1/2. – WMA files encoded in lossless, professional, and

voice format.

– WMA files not based on Windows Media® Audio.

Changing the source

• If you change the source, playback also stops.

Next time you select the same source again, playback

starts from where it has been stopped previously.

General settings—PSM

• “AUTO” setting for “DIMMER” may not work correctly on some vehicles, particularly on those having a control dial for dimming.

In this case, change the “DIMMER” setting to any

other than “AUTO.”

• If you change the “AMP GAIN” setting from “HIGH POWER” to “LOW POWER” while the volume level is set higher than “VOLUME 30,” the unit automatically changes the volume level to “VOLUME 30.”

Title assignment

• If you try to assign titles to more than 30 station frequencies, “NAMEFULL” appears. Delete unwanted titles before assignment.

Ejecting a disc or removing a USB device

• If the ejected disc is not removed within 15 seconds, it is automatically inserted into the loading slot again to protect it from dust.

• After ejecting a disc or removing a USB device, “NO DISC” or “NO USB“ appears and you cannot operate some of the buttons. Insert another disc, reattach a USB device, or press SRC to select another playback source.

Troubleshooting

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

Symptoms Remedies/Causes

• Sound cannot be heard from the speakers. • Adjust the volume to the optimum level.

• Check the cords and connections.

General

• The unit does not work at all. Reset the unit (see page 2).

• SSM automatic presetting does not work. Store stations manually.

FM/AM

• Static noise while listening to the radio. Connect the antenna firmly.

• Disc cannot be played back. Insert the disc correctly.

• CD-R/CD-RW cannot be played back.

• Tracks on the CD-R/CD-RW cannot be skipped.

• Disc can neither be played back nor ejected. • Unlock the disc (see page 10).

• Disc sound is sometimes interrupted. • Stop playback while driving on rough roads.

Disc playback

• “NO DISC” appears on the display.

• “PLEASE” and ”EJECT” appear alternately on the display.

• Disc cannot be played back. • Use a disc with MP3/WMA tracks recorded in a format

• Insert a finalized CD-R/CD-RW.

•

Finalize the CD-R/CD-RW with the component which you used for recording.

• Eject the disc forcibly (see page 2).

• Change the disc.

• Check the cords and connections.

Insert a playable disc into the loading slot.

compliant with ISO 9660 Level 1, Level 2, Romeo, or Joliet.

• Add the extension code <.mp3> or <.wma> to the file names.

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• 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

MP3/WMA playback

• A longer readout time is required

(“READING” keeps flashing on the display).

tracks.)

Do not use too many hierarchical levels and folders.

Continued on the next page

Symptoms Remedies/Causes

• Tracks are not played back in the order you have intended.

• The elapsed playing time is not correct. This sometimes occurs during playback. This is caused by

ENGLISH

• The correct characters are not displayed (e.g.

MP3/WMA playback

album name).

• Noise is generated. The track played back is not an MP3/WMA track. Skip to

• “READING” keeps flashing on the display. • Readout time varies depending on the USB device.

• Tracks/folders are not played back in the order you have intended.

• “NO FILE” flashes on the display.

• “NO USB” appears on the display.

USB device playback

• The unit cannot detect the USB device.

• “READ” and “FAILED” appear alternately on the display.

The playback order is determined when the files are recorded.

how the tracks are recorded on the disc.

This unit can only display alphabets (upper case), numbers, and a limited number of symbols.

another file. (Do not add the extension code <.mp3> or <.wma> to non-MP3 or WMA tracks.)

• Do not use too many hierarchy, folders, and empty folders*.

• Turn off the power then on again.

• Reattach the USB device again.

* Folder that is physically empty or folder that contains

data but does not contain valid MP3/WMA track.

The playback order is determined by the write-in time stamp. The first track/folder written into the USB device will be the first track/folder for playback.

• Attach a USB device that contains tracks encoded in an appropriate format.

• Reattach the USB device again.

The total number of tracks could not be accessed properly.

• Correct characters are not displayed (e.g. album name).

• While playing a track, sound is sometimes interrupted.

Microsoft and Windows Media are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.

This unit can only display alphabets (upper case), numbers, and a limited number of symbols.

The MP3/WMA tracks have not been properly copied into the USB device. Copy MP3/WMA tracks again into the USB device, and try again.

Specifications

AUDIO AMPLIFIER SECTION

Maximum Power Output:

Front/Rear: 50 W per channel

Continuous Power Output (RMS):

Front/Rear: 19 W per channel into 4 Ω,

40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion.

Load Impedance: 4 Ω (4 Ω to 8 Ω allowance)

Tone Control Range:

Bass: ±12 dB at 60 Hz

Mid-range: ±12 dB at 1 kHz

Treble: ±12 dB at 10 kHz

Frequency Response: 40 Hz to 20 000 Hz

Signal-to-Noise Ratio: 70 dB

Line-Out Level/ Impedance:

Output Impedance: 1 kΩ

Subwoofer-Out Level/ Impedance:

Other Terminal: AUX (auxiliary) input jack, USB

2.5 V/20 kΩ load (full scale)

input jack

TUNER SECTION

Frequency Range:

FM: 87.5 MHz to 108.0 MHz

AM: 531 kHz to 1 602 kHz

FM Tuner

Usable Sensitivity: 11.3 dBf (1.0 μV/75 Ω)

50 dB Quieting Sensitivity:

Alternate Channel Selectivity (400 kHz):

Frequency Response: 40 Hz to 15 000 Hz

Stereo Separation: 30 dB

AM Tuner

Sensitivity/Selectivity: 20 μV/35 dB

16.3 dBf (1.8 μV/75 Ω)

65 dB

CD PLAYER SECTION

Type: Compact disc player

Signal Detection System:

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

Non-contact optical pickup (semiconductor laser)

USB SECTION

USB Standard: USB 1.1, USB 2.0

Data Transfer Rate (Full Speed):

Storage:

Compatible Device:

Compatible File System:

Playable Audio Format:

Max. Current: 500 mA

Max. 12 Mbps

Less than 8 GB (1 partition type)

Mass storage class (except HDD)

FAT 32/16/12

MP3/WMA

GENERAL

Power Requirement:

Operating Voltage: DC 14.4 V

(11 V to 16 V allowance)

Grounding System: Negative ground

Allowable Operating Temperature:

Dimensions (W × H × D): (approx.)

Installation Size: 182 mm × 52 mm × 160 mm

Panel Size: 188 mm × 58 mm × 6 mm

Mass:

Design and specifications are subject to change without notice.

0°C to +40°C

1.3 kg (excluding accessories)

ENGLISH

Having TROUBLE with operation?

Please reset your unit

Refer to page of How to reset your unit

EN, CT

1007DTSMDTJEIN

KD-G646/KD-G645

Installation/Connection Manual

安裝/連接手冊

GET0502-010A

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[

ENGLISH

This unit is designed to operate on 12 V DC, NEGATIVE ground electrical systems. If your vehicle does not have this system, a voltage inverter is required, which can be purchased at JVC car audio dealers.

WARNINGS

To prevent short circuits, we recommend that you disconnect the battery’s negative terminal and make all electrical connections before installing the unit.

• Be sure to ground this unit to the car’s chassis again after installation.

Notes:

• Replace the fuse with one of the specified rating. If the fuse blows frequently, consult your JVC car audio

dealer.

• It is recommended to connect speakers with a maximum power of more than 50 W (both at the rear and

at the front, with an impedance of 4 Ω to 8 Ω). If the maximum power is less than 50 W, change “AMP GAIN” setting to prevent the speakers from being damaged (see page 13 of the INSTRUCTIONS).

• To prevent short circuits, cover the terminals of the UNUSED leads with insulating tape.

• The heat sink becomes very hot after use. Be careful not to touch it when removing this unit.

1007DTSMDTJEIN

EN, CT

中文

本機僅可使用直流 12 V 、負極接地的電源系統。如果您的車輛沒有這一電源系統，則需要一個電壓變換器，可以在 JVC 汽車音響分銷商處買到。

警告

為防止短路，建議在安裝本機之前，拔開電池的負極，並把所有電路都連接好。

• 安裝完畢後務必將本機的地線重新接至車身。

注意:

•

把保險絲更換為額定負荷值的保險絲。如果保險絲經常燒壞，請向 JVC 汽車音響分銷商詢問。

• 後置和前置揚聲器的最大輸入功率應大於 50 W，其阻抗為 4 Ω - 8 Ω。如果最大功率小於 50 W，

請調校“AMP GAIN”設定值，以防止揚聲器損壞。（參閱使用說明書的第

• 為防止電源短路，請用絕緣帶包住未使用電線的端子。

• 本機使用後，散熱片會很熱。因此，在移出本機時，小心不要觸摸散熱片。

頁。）

Heat sink / 散熱片

PRECAUTIONS on power supply and speaker connections:

• DO NOT connect the speaker leads of the power cord to the car battery; otherwise, the unit

will be seriously damaged.

• BEFORE connecting the speaker leads of the power cord to the speakers, check the speaker wiring in

your car.

Parts list for installation and connection

The following parts are provided for this unit. If any item is missing, consult your JVC car audio dealer immediately.

電源和揚聲器接線注意事項:

• 切勿把揚聲器導線接頭接至電池，否則本機將會嚴重損壞。

• 在把揚聲器導線接頭接至揚聲器之前，檢查您汽車上的揚聲器線路。

用於安裝和連接的零組件清單

下列零組件隨本機提供。若有任何遺漏，立刻咨詢您的 JVC 汽車音響經銷商。

A / B Hard case/Control panel

硬盒/控制面板

Power cord

電路連接用的配線束

Rubber cushion

橡膠防震墊

Washer (ø5) 墊圈（ø5）

Handles

板條型把手

Sleeve

外套機殼

Lock nut (M5) 鎖定螺母（M5）

Remote controller

遙控器

Trim plate

裝飾框

Mounting bolt (M4 × 5 mm, M5 × 12.5 mm) 緊固螺栓（M4 × 5 mm, M5 × 12.5 mm）

Battery

電池

INSTALLATION (IN-DASH MOUNTING)

The following illustration shows a typical installation. If you have any questions or require information regarding installation kits, consult your JVC car audio dealer or a company supplying kits.

• If you are not sure how to install this unit correctly, have it installed by a qualified technician.

安裝（裝設、固定在儀表板內）

下面的圖解表示了典型的安裝程序。如果您有問題，或需要有關配套元件的資料，請向 JVC 汽車音響分銷商或配套元件供應公司詢問。

• 如果您不能確定如何正確地安裝本機，應請合格的技術人員來安裝。

Do the required electrical connections.

進行所需的電路連接。

Removing the unit

Before removing the unit, release the rear section.

Bend the appropriate tabs to hold the sleeve firmly in place.

弄彎機殼的突舌，把外套機殼牢固在儀表板內。

拆卸本機

在拆卸本機前，應將本機後部的固定和連接部分鬆開。

Insert the two handles, then pull them as illustrated so that the unit can be removed.

按圖所示，將兩片板條型把手插入卡槽，然後輕穩地從兩側向外拉兩片把手，本機隨之拉出。

When using the optional stay / 若選用支撐架

Stay (option)

支撐架（選用的）

Fire wall

防火板

Dashboard

儀表板

Screw (option)

螺絲釘（選用的）

Install the unit at an angle of less than 30˚.

將本機安裝在少於

30˚ 的角度。

When installing the unit without using the sleeve / 若不使用外套機殼安裝本機

In a Toyota car for example, first remove the car radio and install the unit in its place. 以豐田牌（TOYOTA）汽車為例：首先取出汽車收音機，然後將本機裝入其空出的位置。

Flat head screws (M5 × 8 mm) 平頭螺絲釘（M5 × 8 mm） *

Bracket*

托座 *

Pocket

空殼

Note : When installing the unit on the mounting bracket, make sure to use the 8 mm-long screws. If longer screws are

used, they could damage the unit.

注意 : 把本機安裝在托座上時，務必使用 8 mm 長的螺絲釘。如使用過長的螺絲釘，會損壞本機。

Bracket*

托座*

Flat head screws (M5 × 8 mm)* 平頭螺絲釘（M5 × 8 mm） *

When you stand the unit, be careful not to damage the fuse on the rear.

Not supplied for this unit.

您豎起本機時，小心不要損壞底部的保險絲。

不隨本機提供。

ENGLISH

中文

ELECTRICAL CONNECTIONS

Typical connections / 典型的接線方法

Before connecting: Check the wiring in the vehicle carefully. Incorrect connection may cause serious

damage to this unit. The leads of the power cord and those of the connector from the car body may be different in color.

1 Connect the colored leads of the power cord in the order specified in the illustration below.

2 Connect the antenna cord.

3 Finally connect the wiring harness to the unit.

Line out (see diagram

輸出端子 (參閱圖表）

Antenna terminal

天線端子

)

Rear ground terminal

本機後背接地端子

15 A fuse 15 A 保險絲

電路連接

接線前：仔細檢查汽車內的線路。不正確的接線會導致本機嚴重損壞。

電源線的引線和車身的連接器引線在顏色上可能有所不同。

1 依照下圖所示之次序連接電源線的顏色導線。

2 將天線的電線連接起來。

3 最後，把配線束的插頭插在本機上。

Black

黑色

Yellow

黃色 *

Red

紅色

Blue

藍色

Ignition switch

點火開關

To the metallic body or chassis of the car

接至金屬體或汽車底盤

To a live terminal in the fuse block connecting to the car battery (bypassing the ignition switch) (constant 12 V)

接至保險絲單元內的帶電端子，保險絲單元與車裝電池相連接（用於旁路點火開關）（恆定 12 V）

Fuse block

保險絲單元

To an accessory terminal in the fuse block

接至保險絲單元內的附屬端子

To the automatic antenna if any (250 mA max.) 接至自動天線（若有裝設）（最大 250 mA）

Blue with white stripe

藍色帶有白色條紋

Orange with white stripe

橙色帶有白色條紋

White with black stripe

白色帶有黑色條紋

Not supplied for this unit.

Before checking the operation of this unit prior to installation, this lead must be connected, otherwise the power cannot be turned on.

White

白色

Left speaker (front)

左揚聲器（前置）

Gray with black stripe

灰色帶有黑色條紋

Gray

灰色

Right speaker (front)

右揚聲器（前置）

To the remote lead of other equipment (200 mA max.) 連接至其他裝置上的遙控導線（最大 200 mA）

To car light control switch

連接至車燈控制開關

Green with black stripe

綠色帶有黑色條紋

不隨本機提供。

本機未安裝時，進行工作狀況檢查之前，必須把這導線接上，否則不能開啟電源。

Green

綠色

Left speaker (rear)

左揚聲器（後置）

Purple with black stripe

紫色帶有黑色條紋

Purple

紫色

Right speaker (rear)

右揚聲器（後置）

Connecting the external amplifiers and/or subwoofer / 連接至外部功率放大器和 / 或重低音揚聲器

You can connect amplifiers to upgrade your car stereo system.

• Connect the remote lead (blue with white stripe) to the remote lead of the other equipment so that it can be controlled through this unit.

• Disconnect the speakers from this unit, connect them to the amplifier. Leave the speaker leads of this unit unused.

Front speakers

前置揚聲器

JVC Amplifier

JVC 功率放大器

Set “L/O MODE” to “SUB.W” (See page 13 of the INSTRUCTIONS.)

將“L/O MODE”設定為 “SUB.W”（參閱使用說明書的第 13 頁。）

You can also connect a subwoofer to the REAR LINE OUT terminals.

您也可以將重低音揚聲器連接至 REAR

LINE OUT

端子。

Set “L/O MODE” to “REAR” (See page 13 of the INSTRUCTIONS.)

將“L/O MODE”設定為“

REAR

”（參閱使用說明書

的第 13 頁。）

You can connect a power amplifier for rear speakers.

您可為後置揚聲器連接功率放大器。

或

您可以連接功率放大器以提昇尊車的音響系統。

•

將遙控導線（藍色帶有白色條紋）和其他裝置上的遙控導線連接起來，以便可以經由本機進行遙控。

• 將揚聲器和本機拔開，再接上功率放大器。將本機的揚聲器接線放置不用。

Y-connector (not supplied for this unit) Y-型連接導線（不隨本機提供）

Remote lead (blue with white stripe)

遙控導線（藍色帶有白色條紋）

To the remote lead of other equipment or automatic antenna if any

連接至其他裝置上的遙控導線或自動天線（若有裝設）

Subwoofer

重低音揚聲器

JVC Amplifier

JVC 功率放大器

Remote lead

Firmly attach the ground wire to the metallic body or to the chassis of the car—to the place uncoated with paint (if coated with paint, remove the paint before attaching the wire). Failure to do so may cause damage to the unit.

Signal cord (not supplied for this unit)

Rear speakers

後置揚聲器

JVC Amplifier

JVC 功率放大器

TROUBLESHOOTING

Front speakers

前置揚聲器

遙控導線

將地線與金屬車體或者汽車底盤緊密連接，連接處應該沒有被油漆覆蓋（如果已塗上油漆，在連接電

線前，將油漆刮去）。如果不這樣做，可能會損壞本機。

信號電纜（不隨本機提供）

故障排除

• The fuse blows.

* Are the red and black leads connected correctly?

• Power cannot be turned on.

* Is the yellow lead connected?

• No sound from the speakers.

* Is the speaker output lead short-circuited?

• Sound is distorted.

* Is the speaker output lead grounded? * Are the “–” terminals of L and R speakers grounded in common?

• Noise interfere with sounds.

* Is the rear ground terminal connected to the car’s chassis using shorter and thicker cords?

• This unit becomes hot.

* Is the speaker output lead grounded? * Are the “–” terminals of L and R speakers grounded in common?

• This unit does not work at all.

* Have you reset your unit?

• 保險絲燒斷。

* 檢查紅色導線接頭和黑色導線接頭是否接觸正確?

• 電源不能接通。

* 檢查黃色導線接頭是否接上?

• 揚聲器沒有聲音。

* 檢查揚聲器輸出導線接頭是否短路?

• 聲音失真。

* 檢查揚聲器輸出端子是否接地? * 檢查揚聲器的左（L）、右（R）端子的負極（–）是否共同接地?

• 噪音干擾音響。

* 後接地端子與車身是否使用較短和較厚的電線連接?

• 本機發熱。

* 檢查揚聲器輸出端子是否接地? * 檢查揚聲器的左（L）、右（R）端子的負極（–）是否共同接地?

• 本機完全不能操作。

* 您是否已經重置您的機組?

JVC KD-G645, KD-G646 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual