Operation – Harman-Kardon PT2500 User Manual

Page 13

PT2500 rev (G) 10/23/96

Operation

OPERATION

1. Press the

Power

button

on the

front panel to turn the unit on.

• To use the remote for power on/off it is
necessary to turn the unit on from the
front panel switch and to leave the switch
in the “on” position. The PT2500 may
then be turned off using the

Power

but-

ton

on the remote. When the remote

is used to turn the unit “off” it is actually
placing the system in a standby mode, as
indicated by the amber color of the power
switch ring.

• If you will be away from home for an
extended period of time it is always a
good idea to completely turn the unit off
using the front panel

Power

button

2. Select the desired program source
using the

Input Selector Switches

9 )f

on the front panel or remote.

• To use a camcorder or video game
which is connected to the front panel
VCR2 input, press the

VCR2 Sel

button

• When the selected input is VCR1, VCR2
or VDP the video signal for that input
will be routed to the

MONITOR

output

jacks

‹

and will be viewable on a TV

monitor connected to the PT2500. Make
certain that your TV set is set to the prop-
er “VIDEO” input to view the signal.

3. Choose a surround mode using the

Surround Mode Selector

buttons on the front panel or remote. To
listen to traditional two channel stereo
press the

Surround Off

button

4. Adjust the

Center Channel Mode

and/or

Delay Time

if a

change is required from the setting
established during installation.

5. Adjust the volume to a comfortable
level using the front panel

Volume

Control

or remote

Volume Up/Down

buttons

• To temporarily silence the system press
the

Mute

button

on the remote.

6. Adjust the

Bass

and

Treble

controls

to suit your listening taste.

• To remove the tone controls from the
circuit, press the

Direct

button

• At lower volume levels you may wish to
engage the

Loudness

button

boost low and high frequency sounds to
compensate for response of the human
ear at low listing levels (known as the
Fletcher-Munson hearing curve).

Surround Mode Options
Surround sound processing enables four
separate audio signals to be transmitted
within the left and right channels of a
videocassette, radio or TV broadcast, or
video disc. Through a process known as
matrix encoding a separate center chan-
nel signal for dialog and a surround
channel for effects are encoded into the
stereo signal. When you see the Dolby
Surround

™

, Dolby Stereo

™

, DTS Stereo

™

or other similar logos on a movie or
broadcast this indicates that the program
has surround information.

When the program you are listening to
has encoded surround information, as
shown by one of the logos or brand

names described above, select the

ProLogic

mode using the front panel or

remote

Surround Mode Selectors

If a center channel speaker is used along
with front left/right speakers, but no sur-
round speakers are used, choose the

Dolby 3 Stereo

mode

. This

combines the surround signal into the
front left and right channels to create a
greater feeling of presence and a more
expansive sound field than with conven-
tional stereo signals. Center channel dia-
log information will continue to be
heard through its proper place at center
screen.

When listening to conventional stereo
recordings or programs, those with sepa-
rate left and right channels but no inten-
tionally recorded surround information,
you may wish to experiment with the
surround modes to see which produces
the effect you prefer. Stereo recordings
often contain sufficient natural phase
differences so that the ProLogic or
Dolby 3 Stereo Modes are enjoyable,
despite the lack of true surround infor-
mation.

Stereo recordings may also sound more
expansive in either the

Theater

Stadium

modes. Selecting these modes

uses the front left and right

speakers for normal stereo, while the sur-
round speakers are fed a reverberated
sound. In order to provide for a wider
variety of sound field effects, the sur-
round channel delay available in the
Theater and Stadium modes is substan-
tially greater than that in Dolby
ProLogic.

NOTE: The center channel speaker is
not operational in the Theater or
Stadium modes.

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