DOWNLOAD JBL ESC 340 Sub (serv.man3) Service Manual ↓ Size: 3.6 MB | Pages: 116 in PDF or view online for FREE

Model
ESC 340 Sub (serv.man3)
Pages
116
Size
3.6 MB
Type
PDF
Document
User Manual / Operation Manual
Brand
Device
Audio
File
esc-340-sub-sm3.pdf
Date

JBL ESC 340 Sub (serv.man3) User Manual / Operation Manual ▷ View online

-9-
Bass
Treble
Delay
Level
0 dB
Test
Adjustment
Late Night
Power
Mute
Surround 
Mode
Input
+
+
+
Volume
8
10
11
12
13
5
4
9
7
3
2
1
6
Volume
Surround Mode
Input
Mute
STANDBY
ON
SUB
LVL
DLY
RS
RF
C
LF
LS
AUX
PCM
3 - St
Late Night
Phantom
Digital
ProLogic
Surround
DIG. OPT
DIG. COAX
TV
31
32
33
2
6
5
4
18
16
15
14
22
23
24
25
19
21
26
17
27
28
29
30
20
Remote and Front-Panel Controls and Indicators
Front Panel
Remote Control
1. Power
This button, located only on the
remote control, allows the user
to manually turn on or off the
ESC340. Please note that the
ESC340 features Automatic Turn-
On/Off, and the power switch is
not normally used unless it is
necessary to override this
automatic feature, or in case the
analog input to be used is not
the last one that was used and
so Automatic Turn-On is not
available for that input. Please
read the details regarding
Automatic Turn-On/Off on page
3 of this manual, and keep in
mind that the ESC340 automatic
turn-on feature will be disabled
for five minutes if the ESC340 is
shut down manually. The ESC340
can also be powered on by using
the Input button (4) on the
front panel of the subwoofer or
on the remote control. Please
note that if input selection is
done by pressing the Input
button, the Automatic Digital
Input Selection of the ESC340
will be disabled until the ESC340
shuts down. 
When the ESC340 is plugged into
a working electrical outlet and
its master switch on the back
panel is set to On/Standby, the
Standby (32) indicator will
illuminate. The ON (31) indicator
will light as soon as the ESC340
is turned on either automatically
or via the pressing of the Power
or Input buttons.
2. Mute
From either the front panel or
the remote control, press (Mute)
to lower the volume completely.
The mute symbol indicator (33)
will illuminate. When you press
either of the mute buttons
again, the volume will return to
its previous setting.
Note: The mute function can
also be turned off by pressing
either of the volume buttons on
the front panel or the remote
control.
3. Late Night 
This feature is available for
Dolby Digital only. It compresses
the inherently dynamic digital
sound so that the quiet and loud
passages are not quite as
different in sound levels as they
ordinarily are. This feature
allows the user to watch movies
and listen to dialogue at toned-
down levels so as not to disturb
others by the loud sound effects
that may be present. The Late
Night indicator (26) illuminates
when this feature is active.
-10-
4. Input
This control is available on both
the front panel and the remote
control. It allows manual selec-
tion when the user repeatedly
presses and releases the button
for any of the ESC340’s four
inputs. The ESC340 features an
Automatic Digital Input Selec-
tion feature that automatically
switches the ESC340 to the
source connected to one of its
two digital inputs as soon as
that device is powered on.
Please read the section on page
3 to thoroughly familiarize
yourself with the conveniences
and conditions of using the
Automatic Digital Input
Selection feature. The Input
switch is also used when the
source connected to the
ESC340’s analog input is not the
analog source that was listened
to the last time the ESC340 was
on (and hence the Automatic
Turn-On feature is not
available). The Input switch also
turns on the ESC340 when
pressed (see item 1 earlier in
this section). Whenever a
specific input is selected either
manually or automatically, its
indicator (14, 15, 16 or 17) on
the ESC340’s unit’s front panel
will be illuminated.
5. Surround Mode
Pressing and releasing this
button allows the selection of
different listening modes.
Surround (18), Phantom (19)
and 3-Stereo (20) are available
listening options for Dolby Pro
Logic. Stereo (21) bypasses the
surround processing and out-
puts sound through the right-
and left-front speakers only. 
In Surround mode, all five
satellites and the subwoofer will
play. In Phantom mode, all
speakers except the center
channel will play. In 3-Stereo,
all speakers except for the two
surround speakers will be active.
6. Volume
Press (
) on the remote control
or the front panel to raise the
system’s volume. Press (
) on
the remote control or the front
panel to lower the system’s
volume. The volume setting is
indicated on the status-bar
indicator (27).
7. 0 dB
Press this button to reset the
Center, Surround, Balance,
Treble and Bass controls to their
default positions.
8. Test
Press this button to activate the
Test Tone mode (see Test Tone
section).
9. Delay
The relative timing of sounds
coming from the center and/or
surround speakers compared to
the front-left and front-right
speakers can be adjusted. The
first press of this button allows
adjustment of the center
channel, all the way from the
default setting of 0 ms (milli-
seconds), which means no delay
(all status bars off), to a
maximum of 5 ms (5 status bars
on). The indicators C (28) and
DLY (30) will be on. The second
press of the Delay button allows
adjustments of the surround
speakers; indicators LS (28) and
RS (28) and DLY (30) will be on.
The delay can be adjusted from
zero (all status bars off) to 
15 ms (all status bars on) in 
DTS and Dolby Digital and from
15 ms (all status bars off) to 30
ms (all status bars on) in Dolby
Pro Logic (there is an inherent
and fixed 15 ms of delay added
in the “matrixed” Dolby Pro
Logic to re-create the proper
surround effect). The center and
surround adjustments can be
done in either DTS, Dolby
Digital or Dolby Pro Logic
“matrixed” modes. There are no
separate delay adjustments for
the individual modes of
operation. During adjustments,
the audio mutes momentarily
every time the Adjustment +/–
button (11) is pressed. Please
note that the status-bar
indicator (27) will not display
unless Adjustment +/– buttons
are pressed. Also, while the
status-bar indicator (27) is on,
channel indicators (28) and DLY
(30) will not be displayed. And,
if adjust-
ments are done in a mode where
a certain channel is not
available, the adjustment step
for that channel is skipped. For
example, in Phantom mode, the
center-channel delay cannot be
adjusted since Phantom does
not have a center channel. In
Stereo, neither the center nor
the surround delay can be
adjusted since Stereo does not
feature surround speakers or a
center speaker. A third press of
the Delay button will exit the
ESC340 from its delay-
adjustment mode.
10. Level
The relative level of sounds
coming from each of the
ESC340’s speakers can be ad-
justed while listening to
program material on the
ESC340. Repeated pressing and
releasing of the Level button
allows access to each channel.
The display will indicate LVL
(29), and the channel indicators
(28) LF (Left Front), C (Center),
RF (Right Front), LS (Left
Surround), RS (Right Surround)
and SUB (subwoofer) will
illuminate to indicate the active
speaker. The level for the
-11-
selected channel can then be
changed using the Adjustment
+/– buttons (11). Levels set in
one mode will stay valid for all
other modes and are not inde-
pendent. Please note that the
status-bar indicator (27) will
not display unless Adjustment
+/– buttons are pressed. And,
while the status-bar indicator
(27) is on, channel indicators
(28) and LVL (29) will not be
displayed. Also, if adjustments
are done in a mode where a
certain channel is not available,
the adjustment step for that
channel is skipped. For examp-
le, in Phantom mode the center-
channel level cannot be ad-
justed since Phantom does not
have a center channel. In
stereo, neither the center nor
the surround levels can be
adjusted since Stereo does not
feature surround speakers or a
center speaker. 
A seventh press of the Level
button will exit the ESC340 from
its level-adjustment mode.
11. Adjustment
These buttons are used in
conjunction with Test (8), Delay
(9), and Level (10) to increase
or decrease a setting.
12. Bass
Press (+) to increase the level of
low-frequency information.
Press (–) to decrease the level
of low-frequency information.
13. Treble
Press (+) to increase the level of
high-frequency information.
Press (–) to decrease the level
of high-frequency information.
14–17. Input
One of these four indicators will
illuminate, depending on which
input is selected.
18–21. Surround
One of these will illuminate,
depending on which surround
mode is chosen.
22. Dolby Digital
Indicates the presence of a
Dolby Digital-encoded AC-3
digital signal.
23. DTS
Indicates the presence of DTS
encoded digital signal.
24. Dolby Pro Logic
Illuminates when Dolby Pro
Logic decoding of a 2-channel
signal is taking place. This
indicator may be on by itself
(when analog inputs are used),
in conjunction with Dolby
Digital (when using a digital
input where the AC-3 format
signal contains two channels
and needs to be decoded into
multichannel) or together with
PCM (when using a digital input
where 2-channel PCM-format
data is being decoded into
multichannel).
25. PCM
Illuminates when the signal
supplied through the selected
digital input is in PCM format.
26. Late Night
Illuminates when the Late Night
compression is selected.
27. Status-Bar Indicator
These LEDS show the relative
setting of volume, bass, treble,
speaker level and speaker delay.
28. Speaker Indicator
Identifies the speaker that’s
being adjusted. LS is Left
Surround, LF is Left Front, C is
Center, RF is Right Front, RS is
Right Surround, and SUB is
Subwoofer.
29. Level
Illuminates when the ESC340 is
in speaker-level adjustment
mode.
30. Delay
Illuminates when the ESC340 is
in speaker-delay adjustment
mode.
31. On
Indicates that the ESC340 is
fully powered up.
32. Standby
Indicates that the ESC340 is
plugged into an active wall
outlet and the master switch on
the back panel is in On/Standby
position, but the unit is not
powered on.
33. Mute
Illuminates when the mute
function is activated (the
ESC340 will be on but will not
produce any sound).
-12-
LED Bar Indicators illuminate in
response to adjustments in 
volume, delay, level, bass and
treble controls. 
Status-Bar Indicators
Increase
Decrease
Volume, Level, Delay
0dB
0dB
Increase
Decrease
Bass, Treble
Page of 116
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