Enter below the Model No. and Serial
No. which are located either on the rear,
bottom or side of the cabinet. Retain this
information for future reference.
Model No.
Serial No.
LVT0142-001A
[J]
Warnings, Cautions and Others
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER (OR BACK)
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
The lightning flash with arrowhead symbol,
within an equilateral triangle is intended to
alert the user to the presence of uninsulated
"dangerous voltage" within the product's
enclosure that may be of sufficient
magnitude to constitute a risk of electric
shock to persons.
The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.
WARNING: TO REDUCE THE RISK OF FIRE
OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION
To reduce the risk of electrical shocks, fire, etc.:
1. Do not remove screws, covers or cabinet.
2. Do not expose this appliance to rain or moisture.
Caution –– POWER switch!
Disconnect the mains plug to shut the power off completely. The
POWER switch in any position does not disconnect the mains line.
The power can be remote controlled.
Caution: Proper Ventilation
To avoide risk of electric shock and fire and to protect from damage.
Locate the apparatus as follows:
Front:No obstructions open spacing.
Sides:No obstructions in 10 cm from the sides.
Top:No obstructions in 10 cm from the top.
Back:No obstructions in 15 cm from the back
Bottom:No obstructions, place on the level surface.
In addition, maintain the best possible air circulation as illustrated.
Wall or obstructions
Spacing 15 cm or more
Front
RX-668VBK
Stand height 15 cm or more
Floor
G-1
Table of Contents
Parts Identification ...................................... 2
Getting Started ........................................... 3
Before Installation ...................................................................... 3
Checking the Supplied Accessories ........................................... 3
Connecting the FM and AM Antennas....................................... 3
Connecting the Speakers ............................................................ 4
9 CD-DISC button (32)
p SOUND CONTROL button (17, 32)
q TV VOL. +/– button (33, 34)
w OSD SET/EXIT button (21)
e ONE TOUCH OPERATION button (12)
r TV/VIDEO button (33, 34)
t Source selecting buttons (8)
FM/AM, CD, TAPE/MD, TV SOUND, VCR,
Y
y
DVD, PHONO, DVD MULTI
y TEXT DISPLAY button (26)
RM-SR668U
REMOTE CONTROL
IMPORTANT:
To use the Cursor control buttons (q) on the front panel:
What these buttons actually do depends on which function you are trying to adjust. Before using these buttons, select the function by
pressing one of the buttons marked with *.
2
Getting Started
This section explains how to connect audio/video components and speakers to the receiver, and how to connect the
power supply.
Before Installation
General
• Be sure your hands are dry.
• Turn the power off to all components.
• Read the manuals supplied with the components you are going to
connect.
Locations
• Install the receiver in a location that is level and protected from
moisture.
• The temperature around the receiver must be between –5˚ and 35˚
C (23˚ and 95˚ F).
• Make sure there is good ventilation around the receiver. Poor
ventilation could cause overheating and damage the receiver.
Handling the receiver
• Do not insert any metal object into the receiver.
• Do not disassemble the receiver or remove screws, covers, or
cabinet.
• Do not expose the receiver to rain or moisture.
Checking the Supplied Accessories
Check to be sure you have all of the following items, which are
supplied with the receiver.
The number in the parentheses indicates quantity of the pieces
supplied.
• Remote Control (1)
• Batteries (2)
• AM Loop Antenna (1)
• FM Antenna (1)
If anything is missing, contact your dealer immediately.
Connecting the FM and AM
Antennas
FM Antenna Connections
A
ANTENNA
AM
LOOP
A. Using the Supplied FM Antenna
The FM antenna provided can be connected to the FM 75Ω
COAXIAL terminal as temporary measure.
B. Using the Standard Type Connector (Not Supplied)
A standard type connector should be connected to the FM 75Ω
COAXIAL terminal.
Note:
If reception is poor, connect the outside antenna.
Before attaching a 75
to an outside antenna), disconnect the supplied FM antenna.
ANTENNA
AM
LOOP
FM 75
COAXIAL
EXT
ANTENNA
FM 75
O
C
L
IA
X
A
AM
EXT
B
L
IA
FM 75
X
A
O
C
AM
AM
EXT
LOOP
FM Antenna
Extend the supplied FM antenna horizontally.
Outside FM Antenna Cable
AM
Ω
coaxial cable (the kind with a round wire going
3
AM Antenna Connections
RIGHTLEFT
FRONT SPEAKERS
1
2
1
2
Basic connecting procedure
1
ANTENNA
AM
LOOP
FM 75
COAXIAL
AM
EXT
Snap the tabs on the loop into the
slots of the base to assemble the
AM loop.
AM Loop Antenna
2
3
Outdoor single vinyl-covered wire
1
2
3
1 Cut, twist and remove the insulation at the end of
each speaker signal cable.
2 Open the terminal and then insert the speaker
signal cable.
3 Close the terminal.
Connecting the front speakers
You can connect two pairs of front speakers (one pair to the FRONT
SPEAKERS 1 terminals, and another pair to the FRONT
SPEAKERS 2 terminals).
Right speaker
FRONT SPEAKERS 1
Left speaker
Turn the loop until you have the best reception.
Notes:
• Make sure the antenna conductors do not touch any other
terminals, connecting cords and power cord. This could cause poor
reception.
• If reception is poor, connect an outdoor single vinyl-covered wire to
the AM EXT terminal. (Keep the AM loop antenna connected.)
Connecting the Speakers
You can connect the following speakers:
• Two pairs of front speakers to produce normal stereo sound.
• One pair of rear speakers to enjoy the surround effect.
• One center speaker to produce more effective surround effect (to
emphasize human voices).
• One subwoofer to enhance the bass.
IMPORTANT:
After connecting the speakers listed above, set the speaker
setting information properly to obtain the best possible
surround effect. For details, see page 11.
For each speaker (except for a subwoofer), connect the (–) and (+)
terminals on the rear panel to the (–) and (+) terminals marked on
the speakers. For connecting a subwoofer, see page 5.
Right speaker
FRONT SPEAKERS 2
Left speaker
Connecting the rear and center speakers
Connect rear speakers to the REAR SPEAKERS terminals and a
center speaker to the CENTER SPEAKER terminals.
CENTER
SPEAKER
Center speaker
Left rear
speaker
Right rear
speaker
RIGHT LEFT
SPEAKERS
REAR
CAUTION:
Use speakers with the SPEAKER IMPEDANCE indicated by the
speaker terminals.
4
Connecting the subwoofer speaker
You can enhance the bass by connecting a subwoofer.
Connect the input jack of a powered subwoofer to the
SUBWOOFER OUT jack on the rear panel, using a cable with RCA
pin plugs.
SUBWOOFER
OUT
CD player
CD player
To audio output
Cassette deck or MD recorder
Cassette deck
PHONO
L
R
AUDIO
OUT
(REC)IN(PLAY)
TAPE/MDCD
TV
SOUND
Powered subwoofer
Connecting Audio/Video Components
You can connect the following audio/video components to this
receiver using cables with RCA pin plugs (not supplied). Refer also
to the manuals supplied with your components.
Audio component connections
Use the cables with RCA pin plugs (not supplied).
Connect the white plug to the audio left jack, and the red plug to the
audio right jack.
CAUTION:
If you connect a sound-enhancing device such as a graphic equalizer
between the source components and this receiver, the sound output
through this receiver may be distorted.
Turntable
AM
LOOP
ANTENNA
FM 75
COAXIAL
If an earth cable is
provided for your
turntable, connect the
cable to the ground
terminal (H) of the
ANTENNA terminals on
the rear panel.
AM
EXT
PHONO
L
R
AUDIO
TAPE/MDCD
OUT
(REC)IN(PLAY)
TV
SOUND
To audio input
To audio input
PHONO
L
R
AUDIO
OUT
(REC)IN(PLAY)
TAPE/MDCD
To audio output
TV
SOUND
To audio output
MD recorder
Note:
You can connect either a cassette deck or an MD recorder to the
TAPE/MD jacks. When connecting an MD recorder to the TAPE/MD
jacks, change the source name, which will be shown on the display
when selected as the source, to “MD.” See page 11 for details.
TV (as the sound source)
TV
To audio output
PHONO
L
R
AUDIO
OUT
(REC)IN(PLAY)
TAPE/MDCD
TV
SOUND
To audio output
Turntable
Note:
Any turntables incorporating a small-output cartridge such as an MC
(moving-coil type) must be connected to this receiver through a
commercial head amplifier or step-up transformer. Direct connection
may result in insufficient volume.
If your audio components have a COMPU LINK-3 or
TEXT COMPU LINK terminal
• See also page 24 for detailed information about the connection and
the COMPU LINK-3 remote control system.
• See also page 25 for detailed information about the connection and
the TEXT COMPU LINK remote control system.
5
Video component connections
Use the cables with RCA pin plugs (not supplied).
Connect the white plug to the audio left jack, the red plug to the
audio right jack, and the yellow plug to the video jack.
If DVD player and TV have S-video (Y/C-separation) terminals,
connect them using S-video cables (not supplied). Connecting these
video components through the S-video input/output terminals will
give you better picture playback quality.
DVD player
• When you connect the DVD player with stereo output jacks:
DVD player
DVD
IMPORT ANT:
This receiver is equipped with both the composite video and S-video
input terminals for the DVD player connection.
You do not have to connect both the composite video and S-video
terminals.
However, remember that the video signals from the composite
video input terminal are output only through the composite
video output terminals, while the ones from the S-video input
terminal are output only through the S-video output terminal.
Therefore, if your DVD player is connected to the receiver only
through the S-video input terminal, you cannot record the picture
from the DVD player on the VCR.
In addition, if the TV and the DVD player are connected to the
receiver through the different video terminals, you cannot view the
playback picture from the DVD player on the TV.
TV (as the monitor)
TV (or Monitor)
DVD
VIDEO
OUT
(REC)IN(PLAY)
VCR
OUT
(REC)IN(PLAY)
LEFT
VIDEO
MONITOR
OUT
S-VIDEO
To composite video input
Åı Ç
DVD
VIDEO
OUT
(REC)IN(PLAY)
VCR
OUT
(REC)IN(PLAY)
LEFT
RIGHT
VIDEO
MONITOR
OUT
S-VIDEO
DVD
FRONTCENTERREAR
L
R
SUBWOOFER
DVD
LEFT
RIGHT
Å To front left/right channel audio
output (or to audio mixed output if
necessary)
ı To composite video output
Ç To S-video output (for better
playback picture quality)
• When you connect the DVD player with its analog discrete output
(5.1 CH reproduction) jacks:
DVD player
Å
ıljÎÏ
AUDIO
VCR
To audio/video
input
RIGHT
To S-video input
(when the DVD player is connected
using the S-video terminal)
DVD
VIDEO
OUT
(REC)IN(PLAY)
VCR
OUT
(REC)IN(PLAY)
AUDIO
VHS
LEFT
RIGHT
VIDEO
MONITOR
OUT
S-VIDEO
VCR
To audio/video
output
DVD
FRONTCENTERREAR
L
R
SUBWOOFER
DVD
LEFT
RIGHT
VIDEO
OUT
(REC)IN(PLAY)
VCR
OUT
(REC)IN(PLAY)
LEFT
RIGHT
Å To front left/right channel audio output
ı To center channel audio output
Ç To subwoofer audio output
Î To composite video output
‰ To S-video output (for better playback picture quality)
Ï To rear left/right channel audio output
VIDEO
MONITOR
OUT
S-VIDEO
6
Connecting the Power Cord
Putting Batteries in the Remote Control
Before plugging the receiver into an AC outlet, make sure that all
connections have been made.
Plug the power cord into an AC outlet.
Keep the power cord away from the connecting cables and the
antenna. The power cord may cause noise or screen interference.
We recommend that you use a coaxial cable to connect the
antenna, since it is well-shielded against interference.
Note:
The preset settings such as preset channel and sound adjustment
may be erased in a few days in the following cases:
– When you unplug the power cord.
– When a power failure occurs.
Before using the remote control, put two supplied batteries first.
When using the remote control, aim the remote control directly at
the remote sensor on the receiver.
1. On the back of the remote control, remove the
battery cover as illustrated.
2. Insert batteries. Make sure to observe the proper
polarity: (+) to (+) and (–) to (–).
+
+
-
R6P(SUM-3)/AA(15F)
CAUTIONS:
• Do not touch the power cord with wet hands.
• Do not pull on the power cord to unplug the cord. When
unplugging the cord, always grasp the plug so as not to damage
the cord.
3. Replace the cover.
If the range or effectiveness of the remote control decreases, replace
the batteries. Use two R6P(SUM-3)/AA(15F) type dry-cell batteries.
CAUTION:
Follow these precautions to avoid leaking or cracking cells:
• Place batteries in the remote control so they match the polarity
indicated: (+) to (+) and (–) to (–).
• Use the correct type of batteries. Batteries that look similar may
differ in voltage.
• Always replace both batteries at the same time.
• Do not expose batteries to heat or flame.
7
Basic Operations
The following operations are commonly used when you play any sound source.
Turning the Power On and Off (Standby)
On the front panel:
To turn on the power, press POWER.
The STANDBY lamp goes off. The name of the
current source (or station frequency) appears on
the display.
Current source name appears
VOLUME
100 1k 10k
Current volume level is shown here
To turn off the power (into standby mode),
press POWER again.
The STANDBY lamp lights up. A small amount
of power is consumed in standby mode. To turn
the power off completely, unplug the AC power
cord.
From the remote control:
To turn on the power, press AUDIO POWER.
The STANDBY lamp goes off. The name of the
current source (or station frequency) appears on
the display.
To turn off the power (into standby mode),
press AUDIO POWER again.
The STANDBY lamp lights up.
STANDBY
POWER
STANDBY
POWER
AUDIO
Selected source name appears
MUTE AUTO
SLEEPAT T
EON
TA
NEWS
INFO
VOLUME
CH–
100 1k 10k
LSC
R
D S P
3D-PHONC
THEATER
LIVE CLUB ACTION
DANCE CLUB
HALL
PA VILION
DVD MULTI Select the DVD player for viewing the digital video
disc using the analog discrete output mode (5.1CH
reproduction) on the DVD player.
To enjoy the DVD MULTI playback, see page 20.
DVDSelect the DVD player for viewing the stereo digital
video disc.
VCRSelect the video component connected to the VCR
jacks.
TV SOUND Select the TV sound.
CD *Select the CD player.
PHONO *Select the turntable.
TAPE/MD *Select the cassette deck (or the MD recorder).
FM/AM *Select an FM or AM broadcast.
Each time you press the button, the band alternates
between FM and AM.
Notes:
• When connecting an MD recorder (to the TAPE/MD jacks), change
the source name that appears on the display. See page 11 for
details.
• When you press one of the source selecting buttons on the remote
control marked above with an asterisk (*), the receiver
automatically turns on.
Selecting the Source to Play
Press one of the source selecting buttons.
On the front panel:
DVD MULTI
CD
From the remote control:
DVD
PHONO
M
/A
M
F
V
T
N
U
O
S
O
N
O
H
P
CD
VCR
D
VCR
TAPE/MD
SOURCE NAME
TA
D
D
V
D
P
E
/M
D
V
D
M
U
L
T
I
TV SOUND
FM/AM
Selecting different sources for picture and sound
You can watch picture from a video component while listening to
sound from another component.
Press one of the audio source selecting buttons (CD, TAPE/MD,
PHONO, FM/AM, TV SOUND*), while viewing the picture from a
video component such as the VCR or DVD player, etc.
Notes:
• Once you have selected a video source, pictures of the selected
source are sent to the TV until you select another video source.
* Except when your TV is connected through the AV COMPU LINK
remote control system (see page 30.)
8
Adjusting the Volume
On the front panel:
To increase the volume, turn MASTER
VOLUME clockwise.
To decrease the volume, turn it
counterclockwise.
• When you turn MASTER VOLUME rapidly,
the volume level also changes rapidly.
• When you turn MASTER VOLUME slowly,
the volume lev el also changes slowly.
From the remote control:
To increase the volume, press VOLUME +.
To decrease the volume, press VOLUME –.
–
VOLUME
MASTER VOLUME
Listening only with headphones
1. Connect a pair of headphones to the PHONES jack on the front
panel.
2. Press SPEAKERS 1 and SPEAKERS 2 to set them in the —
+
OFF position.
CAUTION:
Be sure to turn down the volume before connecting or putting on
headphones, as high volume can damage both the headphones and
your hearing.
Note:
You cannot shut off the sound through the other speakers using the
SPEAKERS 1 and 2 buttons.
CAUTION:
Always set the volume to the minimum before starting any source. If
the volume is set at its high level, the sudden blast of sound energy
can permanently damage your hearing and/or ruin your speakers.
Note:
The volume level can be adjusted within the range of “0” (minimum)
to “80” (maximum).
Selecting the Front Speakers
On the front panel ONLY:
When you have connected two pairs of the front
speakers, you can select which to use. Pressing
SPEAKERS 1 or SPEAKERS 2 activates the
respective set of speakers.
• To use the speakers connected to the FRONT SPEAKERS 1terminals, press SPEAKERS 1 to set it in the _ ON position, and
press SPEAKERS 2 to set it in the — OFF position.
• To use the speakers connected to the FRONT SPEAKERS 2terminals, press SPEAKERS 2 to set it in the _ ON position, and
press SPEAKERS 1 to set it in the — OFF position.
• To use both sets of the speakers, press SPEAKERS 1 to set it in
the _ ON position, and press SPEAKERS 2 to set it in the _ ON
position.
• To use neither set of the speakers, press SPEAKERS 1 and
SPEAKERS 2 to set them in the — OFF position.
SPEAKERS
12
_ ON —OFF
Muting the Sound
From the remote control ONLY:
Press MUTING to mute the sound through all
T
I
N
U
G
M
speakers and headphones connected.
“MUTING” appears on the display and the
volume turns off (the volume level indicator goes
off).
To restore the sound, press MUTING again so that “OFF” appears
on the display.
• Turning MASTER VOLUME or pressing VOLUME +/– also
restores the sound.
Recording a Source
You can record any source playing through the receiver to a cassette
deck (or an MD recorder) connected to the TAPE/MD jacks and the
VCR connected to the VCR jacks at the same time.
While recording, you can listen to the selected sound source at
whatever sound level you like, without affecting the sound levels of
the recording.
Note:
The output volume level, tone adjustment (see page 10), bass boost
(see page 10) and DSP modes (see page 17) cannot affect the
recording.
Note:
When only one set of the speakers is connected to either the FRONT
SPEAKERS 1 or 2 terminals, do not activate both pairs of the
speakers. If you do, no sound comes out of the front speakers.
IMPORTANT:
Before recording, turn off the DVD MULTI playback mode.
9
Attenuating the Input Signal
When the input level of the playing source is too high, the sounds
will be distorted. If this happens, you need to attenuate the input
signal level to prevent the sound distortion.
On the front panel ONLY:
Press INPUT ATT. so that the lamp next to
the button lights up.
The ATT indicator also lights up on the display.
• Each time you press the button, the Input Attenuator mode turns
on (“INPUT ATT ON”) or off (“INPUT NORMAL”).
Note:
When selecting “DVD MULTI” as the source, this effect only applies to
front left and right channel signals.
INPUT ATT .
Adjusting the Front Speaker Output
Balance
If the sounds you hear from the front right and left speakers are
unequal, you can adjust the speaker output balance.
Before you start, remember....
• There is a time limit in doing the following steps. If the setting is
canceled before you finish, start from step 1 again.
On the front panel ONLY:
ADJUST
1. Press ADJUST so that the cursor
control % / fi buttons work for
adjusting the sound.
output (from “R-21” to “L-21”).
Reinforcing the Bass
With this Bass Boost function, you can boost the bass level.
Before you start, remember....
• There is a time limit in doing the following steps. If the setting is
canceled before you finish, start from step 1 again.
On the front panel ONLY:
1. Press ADJUST so that the cursor
ADJUST
control % / fi buttons work for
adjusting the sound.
2. Press cursor control % / fi
repeatedly until “BASSBOOST”
(with the current setting) appears
on the display.
3. Press cursor control @ / # to
switch this function “ON” or
“OFF.”
• When this function is switched “ON,” the
BASS BOOST lamp on the front panel
lights up.
Note:
The Bass Boost function affects the front speaker sounds only.
2. Press cursor control % / fi
repeatedly until “L/R BALANCE”
appears on the display.
3. Press cursor control @ / # to
adjust the balance.
• Pressing @ decreases the right channel
output (from “L-21” to “R-21”).
• Pressing # decreases the left channel
Adjusting the Tone
You can adjust the treble and bass sounds as you like.
Before you start, remember....
• There is a time limit in doing the following steps. If the setting is
canceled before you finish, start from step 1 again.
On the front panel ONLY:
1. Press ADJUST so that the cursor
ADJUST
control % / fi buttons work for
adjusting the sound.
2. Press cursor control % / fi
repeatedly until “BASS” or
“TREBLE” appears on the
display.
• Select “BASS” to adjust the bass sound
level.
• Select “TREBLE” to adjust the treble
sound level.
3. Press cursor control @ / # to
adjust the bass or treble sound
level within the range of –10 to
+10.
• Each time you press the button, the sound
level changes by ± 2 steps.
10
LARGESMALLNONE
Basic Settings
Some of the following settings are required after connecting and positioning your speakers in your listening room, while
others will make operations easier.
Changing the Source Name
When you have connected an MD recorder to the TAPE/MD jacks
on the rear panel: Change the source name shown on the display
when you select the MD recorder as the source.
On the front panel ONLY:
When changing the source name from “TAPE” to “MD”:
TAPE/MD
1. Press T APE/MD.
• Make sure “TAPE” appears on the display.
2. Press and hold SOURCE NAME
(the same button as TAPE/MD)
SOURCE NAME
TAPE/MD
SOURCE NAME
until “ASSGN. MD” appears on
the display.
To change the source name from “MD” to “TAPE,” repeat
the same procedure above (in step 1, make sure “MD” appears
on the display).
Note:
Without changing the source name, you can still use the connected
components. However, there may be some inconvenience.
– “TAPE” will appear on the display when you select the MD
recorder.
– You cannot use the COMPU LINK remote control system (see page
24) to operate the MD recorder.
Setting Center and Rear Speakers for
the DSP Modes
3. Press cursor control @ / # to
select your center speaker size.
LARGE: Select this mode when the size of the center speaker
is the same as that of the front speakers.
SMALL: Select this mode when the size of the center speaker
is smaller than that of the front speakers.
NONE:Select this mode when you do not use a center
speaker.
Rear Speaker Setting
Register whether you have connected the rear speakers or not.
Before you start, remember....
• There is a time limit in doing the following steps. If the setting is
canceled before you finish, start from step 1 again.
On the front panel ONLY:
1. Press SETTING so that the cursor
SETTING
control % / fi buttons work for
setting the rear speaker
information.
2. Press cursor control % / fi
repeatedly until “REAR SPK”
(Rear Speaker) appears on the
display.
To obtain the best possible surround sound of the DSP (Digital
Signal Processor) modes (see page 17), you have to register the
information about the speakers arrangement after all connections are
completed.
Center Speaker Setting
Register the center speaker size.
Before you start, remember....
• There is a time limit in doing the following steps. If the setting is
canceled before you finish, start from step 1 again.
On the front panel ONLY:
SETTING
1. Press SETTING so that the cursor
control % / fi buttons work for
setting the center speaker size.
2. Press cursor control % / fi
repeatedly until “CENTER SPK”
(Center Speaker) appears on the
display.
3. Press cursor control @ / # to
register whether you have
connected the rear speakers.
YES: Select this mode when you use rear speakers.
NO:Select this mode when you do not use rear speakers.
Note:
When you change your speakers, you need to register the information
about the speakers again.
Delay Time Setting
Register the delay time of the sound from the rear speakers,
comparing the sound from the front speakers. Delay time is only
valid for “PRO LOGIC.” (See page 15.)
Before you start, remember....
• There is a time limit in doing the following steps. If the setting is
canceled before you finish, start from step 1 again.
• You can adjust the delay time only when you have connected the
rear speakers and have set “REAR SPK” to “YES” (See above).
11
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