Sony SEQ-711 User manual

SONY
Graphic Equalizer

OWNER’S RECORD
The model and serial numbers are located at the rear.
Record serial number in the space provided below.
Refer to these numbers whenever you call upon your Sony
dealer regarding this product.
Model No.SEQ-711
WARNING
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
Serial No.
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.
This symbol is intended to alert the
user to the presence of uninsulated
“dangerous voltage” within the prod-
uct's enclosure that may be of suffi-
cient magnitude to constitute a risk of
electric shock to persons.
This symbol is intended to alert the
user to the presence of important
operating and maintenance (servicing)
instructions in the literature accompa-
nying the appliance.
* The graphical symbols are on the rear enclosure.
CAUTION
You are cautioned that any changes or modifications not
expressly approved in this manual could void your authority
to operate this equipment.
INFORMATION
This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This equipment generates, use, and
can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause
harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more
of the following measures:
~ Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and
receiver.
- Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician
for help.
Precautions
On safety
¢ Operate the unit only on 120 V AC, 60 Hz.
* The unswitched socket outlets remain live, independently
of power switch setting, at ali times when the unit is
connected to the AC power supply.
* Should any solid object or liquid fall into the unit, unplug
it and have it checked by qualified personnel before
operating it any further.
e Unplug the unit from the wall outlet if it is not to be used
for an extended period of time. To disconnect the cord,
pull it out by grasping the plug. Never pull the cord itself.
e AC power cord must be change only at the qualified
service shop.
On operation
Before making program source connections, be sure to turn
the power switch off and unplug the unit.
On cleaning the cabinet
Clean the cabinet, panei and controls with a soft cloth lightly
moistened with mild detergent solution. Do not use any type
of abrasive pad, scouring powder or solvent such as alcohol
or benzine.
For the customers in the U.S.A
For detailed safety precautions, see the leaflet “IMPORTANT
SAFEGUARDS".
If you have any question or problem concerning your unit,
please consult your nearest Sony dealer.

Tab e of Contents
Getting Started
Unpacking
Choosing a good location ....
Inserting the batteries into the remote commander
Connections
Connecting to your system
Location of controls
ArRRWWw
Using Your Equalizer
Equalizing the sound with preset settings Sages 10) .....
Checking the equalization results
Changing the display ..
Demo mode ..
SELECT 10 settings as
Obtaining a desired equalizer curve ......
To adjust right and left channels independently
Characteristics of each frequency .......
To flatten an equalizer curve
TO reverse AN CQUAIIZEL CUIVE ooo icccceecteeseeettettteeeees 10
To have an equalizer curve re-adjusted automatically
(DSC: Dynamic Sound Control) ........0cccccsccceeseseseeseees 10
Storing your individual settings
(PERSONAL FILE)
To recall a stored setting on Nn er
To clear the stored SettingS ..........cccccccessceccssseeessesteeens 10
General
Specifications
Troubleshooting
lateled-iitle We: M Crelelem Meter] {cel 1)
To prevent internal heat build-up in the unit,
Place the unit in a location with adequate air circulation.
Do not install the unit:
in a place subject to direct sunlight, excessive dust,
mechanical vibration or shock.
This way.
Not this way.
vi ee
iS
Do not throw away the carton and packing material!
It will be an ideal container when transporting the unit for
repair work, etc.
Inserting the Batteries into the Remote
Commander
2 Insert two size-AA (R6)
batteries with correct
polarity.
1 Open the cover.
RES
Battery life
About half a year of normal operation can be expected
when using the Sony SUM-3 (NS) batteries.
When the batteries are exhausted, the commander can no
longer operate the unit. Replace both batteries with new
ones.
To avoid battery leakage
When the commander is not to be used for a long period of
time, remove the batteries to avoid damage caused by
battery leakage and corrosion.

Connections
This section describes about the connections with the other audio equipments.
* Connect the AC power cord last. Make sure power is off.
¢ Fully insert cable connectors into jacks. Loose connections may cause hum or
noise.
¢ The red jacks are for the right-channel (R) connections and the white jacks are for
the left-channel (L).
Connecting to Your System
Connecting to the GRAPHIC EQ jacks of the amplifier
GOO
OOOO G|QjOO
Q|OQ|Q|O_G|QlOo@
4 OOO
22.9) Amplifier
LINE IN AC OUTLET
SEQ-711
aaj to an AC outlet of
the amplifier or a
wall outlet
TAPE RECORDER
REC OUT
TAPE RECORDER IN
Cassette deck
LINE IN
Ss
Cume our)
If your unit is supplied with an AC plug adaptor AC OUTLET (UNSWITCHED)
Use it to connect the unit to a wall outlet. When making Use this outlet to power audio component whose power
power connections among the Sony component, this consumption is less than the wattage indicated on the AC
adaptor is not needed. ouilets. The outlet is not controlled by the POWER switch on
the front panel.
Note
When SEQ-711 is connected to the system, always keep the CAUTION
power on, even when the sound is not to be equalized. If Do not connect any electrical home appliances such as an
the power is off, the sound does not come out. electric iron, fan, TV or other high wattage equipment to
these AC outlets.

Connecting to the TAPE jacks-of the amplifier pen,
has the: tape monitor function :
——
TAPE REC OUT
ge AC OUTLET
SEO-711
SIRES TAPE RECORDER IN P to an AC outlet of
TAPE RECORDER the amplifier ora
REC OUT aa a wail outlet
fi
= Cassette:deck

|Morer-1ilelame) m Orel alice) ts
_
NR
[>]
[=|
o
[IN
|
o
11
12)
13
14)
POWER switch
Remote sensor
Display window
SELECT 10 button and indicator
PERSONAL FILE 1-5 button and indicator
FLAT and numeric buttons and indicators
CURSOR CONTROL buttons
TAPE/LINE buttons and indicators
When the POWER is on, the LINE mode is selected.
CURSOR MODE LEFT, L+R. RIGHT buttons
DSC (Dynamic Sound Control) button and indicator
MEMORY button and indicator
REVERSE button
DISPLAY button
EFFECT button and indicator
i 2 3 a\(s][el[7
; |
= |
14] el TEE
RM-J711
Main unit Remote commander
[4] SELECT 10 button —
2) FLAT and numeric buttons
[3] CURSOR CONTROL/CURSOR MODE buttons
Each time this button is pressed, the channel mode is
changed in the following order:
ce (left) + R (right) >» L_—» R5
[4] DISPLAY button
[5] REVERSE button
[6] EFFECT button
[7] P. FILE1-5 button
“N

Equalizing the Sound with Preset Settings (SELECT 10)
The SELECT 10 function allows you to equalize the sound, simply by choosing from
10 preset combinations of equalization and DSC (Dynamic Sound Control). See
page 8 for details.
up.
Checking the Equalization Results
By switching EFFECT on and off, compare the results. The
spectrum analyzer can be used to visually confirm the need
for and effect of, equalizer adjustment.
Changing the Display
Each time you press DISPLAY, the display switches
between the equalizer curve and spectrum analyzer.
Equalizer curve: Shows how the sound you hear is adjusted.
Spectrum analyzer: Shows the level of frequency band in
real time.
To start the demo mode, press DISPLAY twice within 1
second.
After a variety of equalizer curves is desplayed, each curve
of the SELECT 10 function and the personal file is
sequentially displayed. To stop the demo mode, press any
other button except TAPE/LINE.
In the demo mode, each equalizer curve of the SELECT 10
is displayed in the following order:
27147374985 0. > 10

Equalizing the Sound with Preset Settings (SELECT 10)
SELECT 10 Settings
T/FLAT
Gives rich expansiveness to sources recorded with
reverberation, such as classical music.
2
Gives the atmosphere of a large hall with a deep
reverberation and emphasized middle-low frequencies.
3
Gives an atmosphere similar to a movie theater in which
sound effects and a voluminous bass sound is emphasized.
4
Gives width to a monaural program source (TV, etc.) with
different equalizer curves for each channel.
5
Gives an atmosphere similar to a jazz club in which the
sound is heard brightly with expanding reverberation.
6
Gives an atmosphere similar to a live concert in a gym. The
DSC function (See page 10.) modifies the equalizer curve
according to the sound level.
7
Gives an atmosphere similar to a disco in which bass sound
is emphasized.
8
Improves sound at low listening levels by adding
reverberation.
9
Improves sound to be listened to with stereo headphones by
emphasizing bass sound and spaciousness.
10
Improves sound to be listened to in noisy surroundings,
such as in acar.

Obtaining a Desired Equalizer Curve
You can adjust the level of 7 frequency bands for both channels.
4 Press A or V, to adjust the level of the
1/FLAT 2, 3, 4 frequency range.
1 REVERSE DSC
1 Press EFFECT so that the indicator lights up.
vie
oer After the adjustment is completed
Approximately 5 seconds after the adjustment is completed,
wa the display returns to the sound level display. However, as
long as the EFFECT indicator is lit, you can listen to the
adjusted sound.
When a frequency range stops blinking
2 You cannot adjust the channels. Repeat from step 1.
Press one of the CURSOR CONTROL buttons.
When the EFFECT indicator is not lit
You can adjust sound, but cannot listen to the adjusted
sound.
(m To Adjust Right and Left Channels Independently
1 Press EFFECT.
2 Press CURSOR MODE LEFT to adjust the left channel. The
Boone Wenn. | frequency range on the left channel blinks.
Press CURSOR MODE RIGHT to adjust the right channel.
The frequency range on the right channel blinks.
3 Adjust the desired frequency ranges with the CURSOR
3 Press <] or >, so that the frequency range CONTROL buttons while it is blinking.
you wish to adjust blinks.
To return to the mode for adjusting both channels
together
Press CURSOR MODE L + R.

Obtaining a Desired
Equalizer Curve
+S) Kolalare Melua ave(hucel ere Li
Settings (PERSONAL FILE)
Characteristics of Each Frequency
63 Hz: Boosts or cuts the bass.
160 Hz: Governs the low-middie range and greatly
influences the overall characteristics of the sound.
400 Hz: Adjusts the power, spaciousness and warmth of
the sound.
1kHz: Provides more presence for vocals.
2.5 kHz: Boosts a brighter sound and reduces stridency.
6.3 kHz: Affects the treble. Adjusts the brightness of the
sound and reduces high frequency noise, such as
tape hiss.
16 kHz: Adjusts the general atmosphere rather than the
sound itself. Highlights the delicate quality of
instrumental sound.
To Flatten an Equalizer Curve
Press 1/FLAT.
Use this function when you want to make an equalizer curve
from the beginning.
To Reverse an Equalizer Curve
Press REVERSE.
Use this function, for example, to listen to a tape recorded
with the No.10 of the SELECT 10 function, in a room.
To return to the original curve, press REVERSE again.
To flatten or reverse the equalizer curve of each channel
independently
Press CURSOR MODE LEFT or RIGHT, then press 1/FLAT or
REVERSE within 5 seconds.
(While the frequency ranges are blinking).
To Have an Equalizer Curve Re-adjusted
Automatically (DSC: Dynamic Sound Control)
Press DSC so that the indicator lights up.
The equalizer curve is displayed in the display window.
When the input level of a sound increases, the DSC function
automatically keeps down emphasized frequency ranges.
This prevents distortion and damage to speakers. (The
equalizer curve set under 0 position does not move.)
To cancel the DSC function
Press DSC again so that the indicator goes off.
When the DSC indicator is lit
The equalizer curve is displayed in the display window and
the DISPLAY button does not function.
10
You can store a combination of a desired equalizer curve.
You can store up to 5 settings in the numeric buttons 1 to 5.
1 Adjust the sound to the setting you wish to
store.
2 Press MEMORY so that the indicator lights
up.
¢
‘
-=O-
ead
o
3 While the MEMORY indicator is lit
(approximately 5 seconds), press the desired
numeric button (1 to 5).
o to}
io ac
m
To Recall a Stored Setting
1 Press PERSONAL FILE 1-5 so that the indicator lights up.
2 Press the numeric button in which the desired setting is
stored.
The settings are stored only in the numeric buttons 1 to 5.
To Clear the Stored Settings
Set the unit to the demo mode (see page 7.) and then press
POWER to turn off the unit.

Specifications
Inputs LINE IN: Phono jacks, 245 mV
(-10 dBs), 50 kilohms
TAPE IN: Phono jacks, 245 mV
(-10 dBs) 50 kilohms
Outputs LINE OUT: Phono jacks, 245 mV
(-10 dBs),
Load impedance: more than 10
kilonms
TAPE REC OUT: Phono jacks, 245 mV
(-10 dBs),
Load impedance: more than 10
kilohms
Graphic equalizer Boost/cut range: + 10 dB
Center frequencies: 63 Hz, 160 Hz,
400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz,
16 KHz
Frequency response (with EFFECT OFF)
LINE IN: 20 Hz to 50 kHz, *°, dB
Harmonic distortion LINE IN: Less than 0.01 %
(at 1 kHz, 1 V output)
Signal-to-noise ratio (with EFFECT OFF)
LINE IN: Better than 100 dB
(A network, 1 V output)
Power requirements 120 V AC, 60 Hz
Power consumption 13W
AC outlet 1 unswitched, 120 W/1A max.
Dimensions Approx.430 X 110 X 265mm (w/h/d)
(17 x 4/, x 10 '/, inches)
including projecting parts and controls
Weight Approx. 3.2 kg (7 ib 1 oz)
Accessories supplied
Audio connecting cords (2)
Remote commander RM-J711(1)
Sony batteries SUM-3 (NS) (2)
Design and specifications are subject to change without
notice.
Troubleshooting
Before going through the check list below, first refer back to
the connections and operating procedures.
Should any problem persist after you have made these
checks, consult your nearest Sony deaier.
Trouble
Cause
No audio even when
the POWER switch is
turned on.
© The power cord is
disconnected.
® The connecting cord is
disconnected.
No equalization
© The EFFECT button is switched
off (the indicator is off).
¢ Connections are not made
properly.
The operation cannot
be performed with the
remote commander.
¢ Check that the batteries are
loaded correctly.
* Check if there is any obstacle
between the remote
commander and this unit.
¢ Check if the batteries are
exhausted.
11