3 – Front panel features
TASCAM AV-452
Installation & Support Guide
9
B
Video input selector keys
Only one of
these latching keys (
RGB 1
and
RGB 2
) can be active
(lit) at a time. They are used to select the input source
for an external projector.
NOTE
These
RGB 1
and
RGB 2
keys do not affect the switch-
ing of the composite video or S-Video outputs con-
nected to the AV-452. They allow centralized control of
a projector or display forming part of the AV system
containing the AV-452. See "LEARN IR (switch 1)" on
page 16 for details.
Main control section
This section contains controls related to the overall
system.
C
ROOM VOLUME control
This is used to
adjust the levels from the speaker outputs as well as
from the line level outputs. The indicator on this con-
trol lights when power is supplied to the AV-452.
It is motorized, meaning that it will reflect changes
made from the RC-452 remote control unit (
E
).
D
AUX inputs
This set of three RCA jacks is
used to connect a composite video signal and/or the
left and right components of a stereo audio signal.
E
AUX selector switch
This determines
whether audio and video are enabled together at the
AUX
jacks (switch pushed in), or audio only (switch
in the out position).
F
CASCADE key
When this key is active (lit),
the input to the
CASCADE
inputs (rear panel) is fed
to the stereo bus (pre-
ROOM VOLUME
). A rear panel
switch determines whether this input replaces the
input signals or is summed with them (see ("CAS-
CADE (switch 2)" on page 17).
G
INTERCOM key
When this key is lit, the
signal received at the
INTERCOM
connection on the
rear panel is fed to the stereo bus. This signal is not
affected by the
ROOM VOLUME
control.
H
IR SENSOR
This window is used to receive
the commands from the supplied wireless remote
control unit.
I
AMP A and AMP B keys
The AV-452 can
operate in mono mode, with each amplifier driving a
separate speaker, in which case, these will act as
room control keys.
Alternatively, it can be operated in stereo mode, in
which case, these keys turn the stereo channels on
and off individually.
NOTE
These keys do not turn the amplifiers on and off—they
simply mute the signal to the speakers.
The mono/stereo setting for the line outputs is made
using the dedicated switch on the rear panel
e
and
for the speaker outputs using the DIP switches
i
.
J
PHONES level and jack
Connect a stan-
dard pair of stereo headphones to this 1/4" jack.
Adjust the volume with the
PHONES
level control
(pre-
ROOM CONTROL
).
NOTE
Remove the headphones from the jack when turning
the AV-452 on or off, to avoid possible damage from
“thumps”.
K
RGB 2 input
Connect one end of a VGA
standard 15-pin D-sub (analog) cable to this connec-
tor and the other end to a personal computer. The
signal is passed through to the
RGB 2 THRU
connec-
tor on the rear panel.
NOTE
The AV-452 is not provided with an “RGB 1” input or
output. This numbering system refers to any projector
or video display unit connected to the AV-452.
C
FG
H
I J K
D
E
