Dolby
Dolby Surround
Surround Mixing
Mixing Manual
Manual
Chapter
Chapter 3
3 -
- System
System Installation
Installation
3-7
3-7
units are in the monitoring chain, not the
units are in the monitoring chain, not the recording chain. Such monitoring can also be used
recording chain. Such monitoring can also be used
when tracking a music session that will
when tracking a music session that will be mixed later in Dolby
be mixed later in Dolby Surround.
Surround.
C
CO
ON
NS
SO
OL
LE
E
S
SE
EU
U4
4
S
SD
DU
U4
4
L
L
R
R
C
C
S
S
L
L
L
L
R
R
R
R
C
C
C
C
S
S
S
S
L
L
L
L
R
R
R
R
t
t
tt
t
t
tt
Figure 3-9 Signal Routing—4-2-4 Monitoring
Figure 3-9 Signal Routing—4-2-4 Monitoring
3.4
3.4
Dolby
Dolby Model
Model SEU4
SEU4 Setup
Setup
Normal operation of the SEU4 requires no
Normal operation of the SEU4 requires no modifications to the unit as it co
modifications to the unit as it comes from the factory.
mes from the factory.
There are two modes which should be
There are two modes which should be checked if problems are encountered.
checked if problems are encountered.
On the older units (“gold” finish), access the switches
On the older units (“gold” finish), access the switches referred to below by removing the front
referred to below by removing the front
cover plate (using the thumbscrews) and withdrawing the plug-in modules. On the
cover plate (using the thumbscrews) and withdrawing the plug-in modules. On the more recent
more recent
units (“silver” finish) remove the front extrusion first. However, it is likely
units (“silver” finish) remove the front extrusion first. However, it is likely that these switches
that these switches
are in their default positions.
are in their default positions.
3.4.1
3.4.1
Surround
Surround Active
Active LED
LED
The Surround Active LED on the front
The Surround Active LED on the front should be lit as in
should be lit as in
Figure 3-10.
Figure 3-10.
If it is not, a jumper inside
If it is not, a jumper inside
the unit has likely been
the unit has likely been changed (there is no reason to do this
changed (there is no reason to do this under normal operation) or a
under normal operation) or a
jumper wire (or closed switch) between pins 5
jumper wire (or closed switch) between pins 5 and 15 of the DB15 connector on the
and 15 of the DB15 connector on the back of the
back of the
unit is disabling the function. Open this switch
unit is disabling the function. Open this switch or remove the jumper to restore operation.
or remove the jumper to restore operation.
Figure 3-10 SEU4 Front Panel with
Figure 3-10 SEU4 Front Panel with Surround Active LED On
Surround Active LED On
Note:
Note:
If your unit is modified for game mode
If your unit is modified for game mode
(Section 7.5)
(Section 7.5)
the surround active light indicates
the surround active light indicates
normal operation. If the LED is
normal operation. If the LED is not illuminated, the unit is in
not illuminated, the unit is in game mode.
game mode.
