•PT2500(g).qx 10/23/96 7:36 AM Page 16
Harman Kardon
A/VSurround Tuner Controller
PT2500
1
2 3 4 5
6 7 8 9 0
Power
Memory0-30
VCR 2
Scan
Sel
Direct
Delay
DIRECT
CENTER
DOLBY 3-CH
FM
MODE
NORM
THEATER
WIDE
AM
PHANTOM
STADIUM
Off
Pro-Logic
Stadium
3 Ch
Theater
TAPE2MON AUTO VCR1REC
Test
Center Tape2Mon Rec VDP TV/Aux Phono
MEMORY
MHz
DELAY
Tuned
TIME
FMST
SLEEP
KHz
SOURCE
Tape 1 VCR 1 VCR 2 CDTuner
PRESET
VDP VCR2
MS
MIN
Owner’s Manual
Tuning
FMAM
Auto/ManFM Mode
Bass Treble Balance
Volume
Loudness
VCR 2
PT2500 rev (G) 10/23/96
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Introduction & Safety Information. . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Unpacking and Installation . . . . . . . . . . . . . . . . 3
Using this manual . . . . . . . . . . . . . . . . . . . . . . . 3
Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . 5
System Remote Control. . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installation and Configuration . . . . . . . . . . . . . . . . 7–10
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11–12
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Technical Specifications . . . . . . . . . . . . . . . . . Back Cover
Table of Contents
80 Crossways Park West
Woodbury, NY 11797
©1996 Harman Kardon, Incorporated
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Introduction and Safety Information
1
Congratulations! With the purchase
of a Harman Kardon PT2500you are
about to begin many yearsof listening
enjoyment. The PT2500 has beencustom
designed to provide all theexcitement
and detail of movie soundtracks and
every subtle nuance of musicalselections.
While complex processing systems are
hard at work within the PT2500, hookup and operation are simple. Color keyed
connections, a comprehensive remote
control and on screen menus make the
PT2500 easy to use. To obtain the maximum enjoyment from your new receiver
we urge you to take a few minutes to read
through this manual. This will ensure
that connections to speakers, source
playback units and other external devices
are made properly. A few minutes spent
learning the functions of the various
controls will enable you to take advantage of all the power the PT2500 is able
to deliver.
If you have any questions about this
product, its installation or operation,
please contact your dealer. They are your
best local source of local information.
You may also contact Harman Kardon
directly via the Internet at
http://www.harmankardon.com.
Description and Features
The PT2500 is a full featured A/V surround tuner controller, incorporating
a wide variety of listening options.
Through the use of an Analog Devices
decoder, surround encoded programs are
played back with stunning accuracy,
while the direct mode enables stereo
recordings to be played back in their
purest form. The open architecture of a
surround tuner controller allows for easy
expansion to full discrete surround
decoding with external adapters.
*Trademarks of Dolby Laboratories
Five audio inputs, three audio/video
inputs and the PT2500’s 30 preset tuner
create a safety and fire hazard, and may
damage the amplifier.
enable it to serve as the control center for
a complete audio/video system. A system
remote control operates the PT2500 and
compatible Harman Kardon source
equipment, while an on board trigger
jack provides control capability to automatically turn on the companion
PA5800 amplifier.
Features
■
Analog Devices decoding circuit for
precise surround decoding
■
Dolby* ProLogic*, Dolby 3 Stereo,
Theater and Stadium surround modes
■
Direct Mode for pure stereo playback
■
System remote control
■
Remote Trigger Control for PA5800
Important Safety Information
Verify Line Voltage Before Use
Your PT2500 has been designed for use
in North America with 120 volt AC current. Connection to a line voltage other
than that for which it is intended can
If you have any questions about the volt-
age requirements for your specific model,
or about the line voltage in your area,
contact your dealer before plugging the
unit into a wall outlet.
Do Not Use Extension Cords
To avoid safety hazards, use only the
power cord supplied with your unit. If a
replacement cord is used, make certain
that it is of similar gauge. We do not rec-
ommend that extension cords be used
with this product. As with all electrical
devices, do not run power cords under
rugs or carpets or place heavy objects on
them. Damaged power cords should be
replaced immediately with cords meeting
factory specifications.
Handle the AC Power Cord Gently
When disconnecting the power cord from
an AC outlet, always pull the plug, never
pull the cord. If you do not intend to use
the amplifier for any considerable length
of time, disconnect the plug from the AC
outlet.
CAUTION
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
CAUTION:
presence of uninsulated “dangerous voltage”
within the product’s enclosure that may be of
sufficient magnitude to constitute a risk of
electric shock to persons.
EXTENSION CORD THAT DOES NOT HAVE A GROUNDING PLUG PROVIDED.
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE
COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL.
The lightning flash with arrowhead
symbol, within an equilateral triangle, is
intended to alert the user to the
WARNING:
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION:
GROUNDING PLUG ON THE POWER CORD, OR USE ANY PLUG OR
MAKE CERTAIN THAT THE AC OUTLET IS PROPERLY GROUNDED.
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
TO PREVENT ELECTRIC SHOCK, DO NOT REMOVE THE
DO NOT USE AN ADAPTER PLUG WITH THIS PRODUCT.
The exclamation point within an
equilateral triangle is intended to
alert the user to the presence of
important operating and maintenance
(servicing) instructions in the literature
accompanying the appliance.
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Introduction and Safety Information
2
Do Not Open The Cabinet
There are no user serviceable components inside this product. Opening the
cabinet may present a shock hazard, and
any modification to the product will void
your guarantee. If water or any metal
object such as a paper clip, wire or a staple accidentally falls inside the unit, disconnect it from the AC power source
immediately, and consult an authorized
service center.
CATV or Antenna Grounding
If an outside antenna or cable system is
connected to this product, be certain that
it is grounded so as to provide some protection against voltage surges and static
charges. Section 810-B of the National
Electrical Code, ANSI/NFPA No. 70-1996,
provides information with respect to proper grounding of the mast and supporting
structure, grounding of the lead-in wire
to an antenna discharge unit, size of
grounding conductors, location of antenna discharge unit, connection to grounding electrodes and requirements of the
grounding electrode.
NOTE TO CATV SYSTEM INSTALLER:
This reminder is provided to call the
CATV (Cable TV)system installer’s attention to article 820-40 of the NEC that
provides guidelines for proper grounding
and, in particular, specifies that the cable
ground shall be connected to the grounding system of the building, as close to the
point of cable entry as possible.
Installation Location
■
To assure proper operation, and to
avoid the potential for safety hazards,
place the unit on a firm and level surface. When placing the unit on a
shelf, be certain that the shelf and any
mounting hardware can support the
weight of the product.
■
Make certain that proper space is provided both above and below the unit
for ventilation. If this product will be
installed in a cabinet or other
enclosed area, make certain that there
is sufficient air movement within the
cabinet. Under some circumstances a
fan may be required.
■
Do not place the unit directly on a
carpeted surface.
■
Avoid installation in extremely hot or
cold locations, or an area that is
exposed to direct sunlight or heating
equipment.
■
Avoid moist or humid locations.
■
Do not obstruct the ventilation slots
on the top of the unit, or place objects
directly over them.
Cleaning
When the unit gets dirty, wipe it with a
clean, soft dry cloth. If necessary, wipe it
with a soft cloth dampened with mild
soapy water, then a fresh cloth with clean
water. Wipe dry immediately with a dry
cloth. NEVER use benzene, thinner, alcohol or any other volatile cleaning agent.
Do not use abrasive cleaners, as they may
damage the finish of metal parts. Avoid
spraying insecticide near the unit.
Moving The Unit
Before moving the unit, be certain to disconnect any interconnection cords with
other components, and make certain
that you disconnect the unit from the AC
outlet.
Important information for the user
Note: This equipment has been tested
and found to comply within the limits for
a Class B digital device, pursuant to Part
15 of the FCC Rules. The limits are
designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to
radio communication. However, there is
no guarantee that harmful 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
tuning 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.
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions: (1) this device
may not cause harmful interference, and
(2) this device must accept interference
received, including interference that may
cause undesired operation.
Note: Changes or modifications may
cause this unit to fail to comply with Part
15 of the FCC Rules and may void the
user’s authority to operate the equipment.
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Introduction and Safety Information
3
Unpacking and Installation
The carton and shipping materials used
to protect your new PT2500 during shipment were specially designed to cushion
it from shock and vibration. We suggest
that you save the carton and packing
materials for use in shipping if you move
or should the unit ever need repair.
To minimize the size of the carton in
storage, you may wish to flatten it. This
is done by carefully removing any staples
that attach the carton flaps to one another, and then slitting the tape covering the
seams. Fold the carton down to a more
two dimensional appearance. Packing
materials that cannot be collapsed
should be saved along with the carton in
a plastic bag.
If you do not wish to save the packaging
materials, please note that the carton
and other sections of the shipping protection are recyclable. Please respect the
environment and discard those materials
at a local recycling center.
When positioning your PT2500 in its
final location, make certain that any
shelf or stand is capable of supporting it’s
weight, and that there is adequate ventilation on all sides, as well as on the top
and bottom. Do not place CDs, record
jackets, owner’s manuals, or other paper
on top of, or beneath the unit. This will
block air flow, causing degraded performance and a possible fire hazard. If the
unit is to be enclosed in a cabinet or
rack, make certain that there is adequate
air circulation, with a means provided
for hot air to exit, and for cool air to be
brought in.
Using this Manual
For easy identification of the inputs, outputs and controls on the PT2500, a separate reference card accompanies this
manual. Printed on that card are diagrams of the front and rear panels and
the remote control. Refer to that card as
needed to make certain that connections
are being made properly.
The following conventions are used
throughout this manual when referring
to the diagrams on the reference card:
1: A number within a square references
a front panel control.
¡: A number within a circle references
a connection point on the rear panel.
: A number within an oval references
a
a button on the remote control.
Example: Bold type will be used to indi-
cate a front or rear panel control. It will
typically be followed with a reference letter or number to the specific control
being described.
EXAMPLE: OCR type indicates a mes-
sage that is visible through the display
window.
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Front Panel Controls
4
Using the Reference Card supplied with
this manual, familiarize yourself with
each of the controls on the front panel of
the PT2500. This section of the Manual
will also serve as a quick reference to the
operation of any of these controls.
1 Power Switch: Press this button
to turn the PT2500 on or off. In order
to use the power button on the
remote this power switch must be
pressed once and left in the “standby” mode. Note that a green indicator around the switch will illuminate
when the unit is on, and an orange
”standby” indicator will illuminate
when the unit has been turned off
using the remote control.
2 VCR2 Selector: Press this button
to select the front panel VCR2 inputs
rather than the rear panel inputs.
3 Direct Input Selector: Press this
button to select direct input to the
preamp circuits, bypassing all tone
controls and surround processing.
When this feature is activated, the
DIRECT indicator illuminates within the information display.
4 Delay Time Adjust: Press this
button to adjust the delay time
between the front and rear channels.
5 Surround Off: Press this button
to select conventional two channel
stereo reproduction and to cancel
surround processing.
6 Surround Mode Selectors:
Press one of these buttons to select
a surround processing mode.
7 Center Channel Mode Selector:
Press this button to change the center channel mode.
8 Test Mode Selector: Press this
button to place the unit in the Test
mode for adjustment of system output levels.
9 Tape 2 Monitor: Press this button
to monitor the output of the tape
deck connected to the Tape 2
Inputs. For normal operation this
control should be in the off position.
) Input Selectors: Press one of
these buttons to select an input
source.
! Bass Control: Turn this control to
adjust the low frequency output of
the left/right channels by as much as
±10dB. Set this control to a suitable
position for your taste and room
acoustics.
@ Treble Control: Turn this control
to adjust the high frequency output
of the left/right channels by as much
as ±10dB. Set this control to a suitable position for your taste and room
acoustics.
# Balance Control: Turn this con-
trol to change the relative volume for
the front left/right channels.
NOTE: For normal operation of the
surround modes this control should
be at the midpoint, or “12 O’clock”
position.
$ VCR2 Inputs: This alternate set
of VCR2 Inputs may be used for the
connection of a camcorder or video
game. Select this input by pressing
the VCR2 button 2 on the front
panel.
% Loudness Button: Press this
button when listening at low levels to
activate special circuits that compensate for the response of the
human ear at lower volumes. In the
off position the unit will provide flat
frequency response.
^ Volume Control: Rotate this
control to raise or lower the volume.
Note that this is a motorized control,
and when the volume is changed
using the remote control n it will
move in response to remote
commands.
& Mute/Volume Indicator: In nor-
mal operation this green LED provides a relative indication of the
unit’s volume level. When the
PT2500 is in the MUTE mode, this
indicator flashes to remind you that
output to the speakers has momentarily been silenced.
* Auto/Man Selector: Press this
button to select AUTO or MANUAL
tuning. In the AUTO mode the tuner
will stop only at stations with a strong
signal. In the MANUAL mode the
tuner will step in 50 kHz increments
for FM and10kHz increments for AM.
( AM/FM Selector: Press this
button to select AM or FM stations.
Ó Up/Down Tuning Button: Press
the left side
lower frequency stations and the
right side
higher frequency stations. When a
station with a strong frequency is
tuned, the TUNED indicator will illuminate in the Information Display .
Ô FM Mode: Press this button to
select the stereo or mono mode for
FM tuning. In the STEREO mode an
FMST indicator will illuminate in the
information display, and stereo
reception will be provided when stations are transmitting stereo signals.
In the MONO mode the left and right
signals from stereo broadcasts will
be mixed together and reproduced
through all channels. Select the
MONO mode fro better reception of
weak signals.
Information Display: The indica-
tors in this display illuminate to provide visual display of the unit’s
operation.
Ò Remote Sensor: This sensor
receives the signals from the remote
control to operate the unit. Do not
block this area.
Ú Tuner Memory Button: Press
this button to store an AM or FM frequency in the unit’s memory. The
MEMORY indicator will flash in the
display to remind you to choose a
numeric location using Numeric
Buttons on the front panel or remote
(Ùd). Press this button a second
time to complete the memorization
process. Storing a station in a memory location that has already been
used will overwrite the existing data.
NOTE: The preset memories are protected from power loss for two
weeks. If the unit is unplugged for
more than two weeks all stored frequencies will be erased.
Û Preset Scan Button: Press this
button to scan the stations entered
in the unit’s memory. When the
desired station is reached, press
the button again to stop the scan.
Ù Numeric Buttons: Use these
buttons to enter or recall stations
from the tuner memory.
¤
of the button to tune
⁄
of the button to tune
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Rear Panel Connections
5
Using the Reference Card supplied with
this manual, use this section as a quick
guide to the connections required to
install the PT2500. For complete installation and set up instructions, see pages
7-10.
¡ Phono Input: Connect the output
of a turntable or tone arm to these
jacks.
™ System Ground Terminal: To
reduce hum and noise, connect the
ground lead from your turntable or
tone arm to this terminal.
£ Aux Input: Connect the outputs
of any audio source to these jacks.
¢ CD Input: Connect the outputs of
a CD player or external D/A converter to these jacks.
∞ Tape 1 Input: Connect the
PLAY/OUT jacks of an audio tape
recorder to these jacks.
§ Tape 1 Output: Connect the
RECORD/INPUT jacks of an audio
tape recorder to these jacks.
¶ Tape 2 Input: Connect the
PLAY/OUT jacks of a second audio
tape recorder to these jacks.
• Tape 2 Monitor Output: Connect
the RECORD/INPUT jacks of a second audio tape recorder to these
jacks.
ª VCR1 A/V Inputs: Connect the
audio and video PLAY/OUT jacks of
a VCR to these jacks.
‚ VCR1 A/V Outputs: Connect the
audio and video record RECORD/IN
jacks of a VCR to these jacks.
⁄ VCR2 A/V Inputs: Connect the
audio and video PLAY/OUT jacks of
a second VCR, or another A/V
source such as a satellite receiver to
these jacks.
¤ VDP A/V Inputs: Connect the
audio and video outputs of a laser
disc or DVD player to these jacks.
‹ Video Monitor Outputs:
Connect these jacks to the video
input of a TV or video projector.
› Remote Amplifier Trigger:
Using the accessory cable supplied
with the PT2500, connect this jack to
compatible products such as the
PA5800 for automatic turn on/off
operation.
fi AC Power Cord: Connect this
plug to an unswitched, wall mounted
AC outlet.
fl Unswitched Accessory AC
Power Outlet: This outlet provides
AC power that may used with any AC
device up to 100 watts. The power
will remain on at this outlet regardless
of whether the PT2500 is on or off.
‡ Switched Accessory AC Power
Outlet: This outlet provides AC
power to connected products only
when the PT2500 is turned on. Note
that the total current draw of the
products may not exceed 100 watts.
° Remote Control Extension
Output: This jack may be connect-
ed to other compatible Harman
Kardon products so that they will
receive infrared commands captured by the PT2500’s remote sensor.
· Remote Control Extension Input:
If the PT2500’s front panel IR sensor
is blocked due to cabinet doors or
other obstructions, an external IR
sensor may be used. Connect the
output of the sensor to this jack.
a Surround Channel Outputs:
Connect these jacks to the surround
channel inputs of a power amplifier
or digital audio processor with pass
through capability.
b Center Channel Outputs:
Connect the output of one of these
jacks to the center channel input of
a power amplifier or digital audio
processor with pass through capability.
NOTE: In most applications only one
center channel connection will be
required. The output of both jacks is
identical, and either jack may be
used for system connections.
c Front Channel Outputs:
Connect these jacks to the front
left/right channel inputs of a power
amplifier or digital audio processor
with pass through capability.
d Subwoofer Outputs: Connect
these jacks to the line level input of a
powered subwoofer, or to the inputs
of a subwoofer amplifier.
NOTE: This output is a full range
left/right signal. For proper operation
BOTH jacks must be connected to
the left/right inputs of a powered
subwoofer, or a “Y” cable must be
used to connect the two outputs
together if a single input mono subwoofer is used.
WARNING: Since this is a full range
output, the signal must be sent
through a crossover or low pass filter
before being used with a passive
subwoofer or other speaker that
does not contain a built in crossover.
e AM Antenna Input: Connect the
AM loop antenna supplied with the
PT2500 to these terminals. An external AM antenna may also be connected here.
f FM Antenna Input: Connect an
FM antenna to these terminals. Note
that a 300 ohm to 75 ohm adapter is
required for connections from twin
lead dipole antennas.
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System Remote Control
6
Using the Reference Card supplied with
this manual, familiarize yourself with
each of the controls on the PT2500’s
infrared remote control. This section of
the manual will also serve as a quick reference to the operation of any of these
controls.
a Transmitter Window: An
infrared beam is transmitted from
this window when you press any button on the remote. For the remote to
function properly always point this
window toward the remote sensor on
the PT2500 and do not obstruct this
window.
Remote Control
Operation Range
b Power Button: Press this button
to turn the PT2500 on or off.
NOTE: In order for this button to
work, the PT2500 must first be
placed in the standby mode by
pressing the front panel Power
switch 1 until it is engaged and the
ring surrounding the switch turns
amber.
c Up/Down Tuning Buttons:
Press these buttons to manually tune
higher or lower frequency stations.
d Numeric Buttons: Press these
buttons to select one of the stations
stored in the unit’s memory.
e CD Function Controls: These
buttons will control the functions of a
compatible Harman Kardon CD
player or multi disc changer.
f Input Select Buttons: Press
one of these buttons to choose an
input source.
Note: Automatic Power On: When
you press any Input Select Button
while the unit is in the Standby
Mode, the system will automatically
be turned on.
g Delay Time Adjust: Press this
button to adjust the amount of delay
between the sounds heard from
the front and surround speakers.
This function is only available in
the Dolby ProLogic, Theater and
Stadium modes.
h Surround Mode Selectors:
Press one of these buttons to
choose a surround processing
mode. Press the OFF button to
cancel the surround processing for
conventional stereo reproduction.
i Center Level Up/Down
Buttons: These buttons adjust the
center channel volume relative to
that of the other speakers. They
operate only in the Dolby ProLogic
and Dolby 3 Stereo modes.
j Rear Level Up/Down Buttons:
These buttons adjust the volume of
the rear (Surround) channels relative
to that of the other speakers. They
operate only in the Dolby ProLogic,
Theater and Stadium modes.
k Display Dim: Press this button
to dim the brightness of the front
panel display. A second press turns
that display off completely and a
third press returns the displays to
their normal brightness level.
l Sleep Timer Button: Press this
button to activate the sleep timer.
Each press increases the amount of
time before the unit will turn off, in
the following sequence:
10
20
30
60
90
min
min
min
min
min
OFF
m Mute Button: Press this button to
momentarily silence the speakers.
Note that the Mute/Volume Indicator
& will flash to remind you that the
Mute function is engaged. Press the
button again to return to the previously selected listening level.
n Master Volume Control: Press
this button to raise or lower the overall system volume to all speakers.
o Center Mode Select: Press
this button to select the center
channel mode. Each press of the
button changes the mode in the
following sequence:
Normal ‡ Wide‡ Phantom
p Test Mode Select: Press this
button to have a test signal noise
appear in sequence through the left,
center, right and surround speakers
so that relative volume may be
adjusted.
q Cassette Deck Controls: These
buttons control the functions of compatible Harman Kardon cassette
decks.
r Preset Scan Button: Press this
button to scan the stations entered
in the unit’s memory. When the
desired station is reached, press the
button again to stop the scan.
s Battery Compartment: Install
two “AA” batteries as shown to
power the remote control.
Slide the cover on the battery compartment as shown to remove. Insert the
batteries being certain to observe proper
polarity.
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Installation & Configuration
7
Your new Harman Kardon receiver is
designed to provide the best reproduction
from both movies and musical programs.
To assure thatthe unit operates to its
fullest capability, it is important that you
spend a few minutes to properly install
and configure all of the elements in your
new system. Some, or all of the following
steps will apply to your system, depending on the equipment in use. If you have
any questions concerning the installation
of this product consult your local dealer,
or contact the Harman Kardon web site
at http://www.harmankardon.com.
System Component
Connections
IMPORTANT SAFETY NOTE: Many
products feature automatic turn on circuitry which may accidentally be activated when making connections. For your
safety and to prevent damage to speakers,
amplifiers and other components we
strongly recommend that all equipment
power be turned off, or that AC power
cords be unplugged when any system
connections are made or changed.
Using high quality interconnect cables,
connect all source components to the
appropriate input jacks on the rear
panel. When connecting audio recorders
and VCRs it is important to make certain
that the PLAY/OUT jacks on the recorders
are connected to the PLAY jacks on the
PT2500, and that the RECORD/IN jacks
of the recorders are connected to the
REC jacks on the PT2500.
If the phono input is used, connect the
small ground wire connection furnished
on most turntables to the System
Ground Terminal™ on the rear
panel. This will greatly reduce system
noise and hum.
Assemble the supplied AM loop antenna
as shown below and connect it to the AM
ANTENNA Terminalse.
AM LOOP ANTENNA SETTING
Stand and place it on a shelf, or hang it on a wall.
LEG
It may be necessary to rotate the antenna
or change its position to achieve the best
AM reception. Connect an FM antenna to
the FM Antenna Terminals. A 300
ohm to 75 ohm adapter may be required
for some antennae.
If a PA5800 or other compatible amplifier will be used, connect the supplied
accessory cable to the Remote
Amplifier Trigger Jack› on the
PT2500. Connect the other end to the
appropriate jack on your amplifier.
Consult the amplifier manual for further
instructions.
IMPORTANT NOTE: Do not connect
amplifier trigger cables to the “IR
Remote Control” jacks on this or any
other equipment.
If you are using the PT2500 to switch
video inputs, connect either MONITOR
output ‹ to a video input on your TV or
projector.
The rear panel accessory outlets on the
PT2500 may be used to power low current devices such as CD payers or tape
decks. The SWITCHED Accessory
AC Power Outlets ‡ are activated
only when the PT2500 is turned on. The
UNSWITCHED Accessory AC
Power Outlets fl may be used with
VCRs, as the power to these outlets is live
as long as the PT2500 remains connected to an AC power source.
CAUTION: The total power load for all
products connected to the accessory outlets must not exceed 100 watts. Do not
use them for high current devices such as
power amplifiers.
If the PT2500’s front panel remote sensor
Ò is blocked by cabinet doors you may
still operate the unit via remote control
with the use of an optional external
remote sensor. Connect the output of the
sensor to the rear panel REMOTE
CONTROL Extension Input ·.
This jack may also be used as the IR
input from compatible multiroom control systems. The sensor may be looped
to other components by connecting the
REMOTE CONTROL Extension
Output ° to the IR remote input jack
of other compatible components.
Amplifier Connections
Since the PT2500 is a tuner/preamplifier,
it does not include any on board power
amplifiers. The final step in the installation process is to connect the unit to the
amplifiers for each channel. Using high
quality audio interconnect cables, connect the FRONT, CENTER and
SURROUND Channel Outputs
cbato the appropriate input jacks
of a power amplifier.
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Installation & Configuration
8
Although there are two outputs for the
center channel, only one connection is
typically required. As the two outputs are
identical, either one may be used and the
other left open.
Once the center channel speaker is
installed, position the left and right front
speakers so that they are as far away
from one another as the center channel
speaker is from the preferred listening
position. Ideally, the front channel
Subwoofer connections are made using
the SUBWOOFER Outputs d. When
using a powered subwoofer, connect
BOTH the left and right output subwoofer
speakers should be placed so that their
tweeters are no more than 24″off center
from the tweeter in the center channel
speaker.
outputs to the respective left and right
line level inputs on your subwoofer. As
the PT2500 subwoofer outputs are full
range, it will be necessary to adjust the
crossover frequency to your requirements
on the subwoofer’s control panel. Consult
the subwoofer instructions or consult
your dealer for additional information.
Depending on the specifics of your room
acoustics and the type of speakers in use,
imaging may be improved by moving the
front left and right speakers slightly for-
ward of the center channel speaker. If
possible, adjust all front loudspeakers so
that they are aimed at ear height when
you are seated in the listening position.
When using a single subwoofer and a
separate mono power amplifier the
PT2500 subwoofer outputs must be combined using an optional “Y” adapter. If
there is no crossover in the subwoofer an
optional, external low pass filter or
crossover system must also be used.
When using the PT2500 with an external
5.1 digital audio decoder such as the
Harman Kardon ADP303, connect all
Channel Outputs abc to the
decoder’s inputs. Use an optional “Y”
adapter to combine the subwoofer outputs and connect the “Y” adapter to the
decoder’s subwoofer input. The outputs
of the digital audio decoder should then
be connected to your power amplifiers.
Using these guidelines, you may find that
it takes some experimentation to find the
correct location for the front speakers in
your particular installation. Don’t be
afraid to move things around until the
system sounds correct. Optimize speaker
locations so that pans across the front of
the room sound smooth, and that sounds
from all speakers appear to arrive at the
listening position at the same time with-
out delay from the center speaker as
opposed to the left and right speakers.
Surround speakers should be placed on
the side walls of the room, at or slightly
behind the listening position. The center
of the speaker should face into the room
with the speaker drivers pointing towards
the front and rear of the room. The
Speaker Selection and Placement
Depending on the type of center channel
speaker in use and your viewing device,
place the center speaker directly above or
speakers should be located so that the
bottom of the cabinet is at least 24″
higher than the listeners’ ears when in
the desired area.
below your TV .
Center Front Speaker
No more
than 24"
Left Front
Speaker
A) Front Channel Speaker Installation
with Direct View TV Sets or Rear Screen
Projectors
TV or Projection Screen
Left Front
Speaker
speakers are used
when rear-mounted
No more than 6 feet
The distance between the left and right
speakers should be equal to the distance
from the seating position to the viewing
screen. You may also experiment with
placing the left and right speakers slightly
forward of the center speaker.
Center Front
Speaker
Optional Rear Wall Mounting
At least 6 inches from ceiling
At least 2 feet
Right Front
Speaker
Right Front
Speaker
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Installation & Configuration
9
If side wall mounting is not practical, the
speakers may be placed on a rear wall,
behind the listening position. Again, they
should be located so that the bottom of
the cabinet is at least 24″higher than
the listeners’ ears. The speakers should
be no more than 6 feet behind the rear of
the seating area.
Subwoofers produce non-directional
sound, so they may be placed almost
anywhere in a room. Subwoofer placement is highly influenced by room size
and shape, and the type of subwoofer
used. Follow the instructions of the subwoofer’s manufacturer, or experiment
with the best location for a subwoofer in
your listening room.
Output Level Calibration
For proper operation in the surround
modes it is important that the level from
all channels be as close to one another as
possible. A small amount of time spent to
properly calibrate the PT2500’s output
levels will enable the unit to deliver all
the performance it is capable of within
the specific environment of your listening room.
IMPORTANT NOTE:People are often
confused about the operation of thesurround channels. While some assume that
sound should always be coming from
each speaker, most of the timethere will
be little or no sound inthe rear channels.
This is because they are onlyused when a
movie director or sound mixer specifically places sound there to createan effect or
pull you into the action. Whenthe output
levels have been properly set itis normal
for the rear speakers to operateonly occasionally. Artificially increasing the volume to the rear speakers willdestroy the
illusion of an enveloping surround field
that duplicates the way you hearsound
in a movie theater or concerthall.
To calibrate your system, follow these
steps:
1. Turn on the PT2500 and the compan-
ion power amplifier.
2. Select the Dolby ProLogic mode using
the Surround Mode 6 button on the
front panel.
3. Place the front panel Balance #
control at its midpoint position, so that
the indicator is pointing straight up in
the 12 o’clock position. If the Balance
control is normally in another position
to compensate for speaker placement rel-
ative to your preferred listening position,
leave it in that spot.
4. Sit in the location that you will nor-
mally occupy when using your PT2500.
5. Press the Test Tone
p8
button
on the remote or front panel and note
that a test noise signal will circulate
between the channels.
• While the test noise circulates among
the channels the word TESTand the
channel name will appear in the front
panel information display window. As the
names change you should first listen to
the location of the tone and verify that it
matches the name displayed in the display. If the display indicates a different
location than the speaker the test noise is
coming from you should turn off the
unit and verify that the connections to
the amplifier speakers are made to the
correct terminals on the rear panel.
6. As the test signal circulates among the
channels, use the Center Level
Up/Down
Up/Down
o
and Rear Level
j
buttons on the remote to
adjust the level so that the volume from
all channels sounds equal.
7. Press the Test Tone8button again
to turn the test signal off.Your system is
now properly calibrated and further volume adjustment should be made using
the Master Volumenbuttons on
the remote or the front panelVolume
Control.
ed no other adjustments are necessary.
Delay Setting
Delay time adjustment enables you to
adjust the timing between signals at the
front and surround channels.
The factory setting is appropriate for
most rooms, but in some instances the
use of an abundance of hard (reflective)
room surfaces such as windows and
wood floors, or soft (absorbent) surfaces
such as thick carpeting, acoustical tiles
and some furnishings may create an
unpleasant effect. These surfaces, in
conjunction with the size of the room,
the height of the ceiling and other
design aspects may cause the arrival of
surround channel sounds to become disconnected from rear channel sounds.
To adjust delay time it is necessary to
select the ProLogic, Theater or Stadium
modes using the Surround Mode
Selector buttons on the front panel or
remote
Press the Delay Adjust button 4on
the front panel to adjust the delay time
as observed in the Information
Display according to personal
preference or the following formula:
1. Measure the distance from the listening/viewing position to the front
speakers.
2. Measure the distance from the listening/viewing position to the surround
speakers.
^
Once the system is calibrat-
h6
.
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Installation & Configuration
10
3. Subtract the distance to the rear/surround speakers from the distance to the
front speakers and add 15. The resulting
number is the ideal delay time for your
room. For example, if the front speakers
are 10 feet away and the surround speakers are 5 feet away, the formula will be
“10-5+15=20”. Thus, the correct delay
time in this room would be 20 ms.
Note that the delay time for the Dolby
ProLogic Mode is adjusted in 2 ms increments from 16 ms. to 30 ms. The delay
setting for the Theater and Stadium
modes is adjusted in 8 ms increments
from 8ms to 96 ms.
Center Channel Mode
The PT2500 permits you to tailor the
center channel output to match the type
of speakers used in your home theater.
Press the Center Mode button
o7
on the front panel or remote to select one
of the following. The center channel
mode is shown by indicators in the front
panel display window.
FRONT(left) FRONT(right)
CENTER
CENTER
FRONT(left) FRONT(right)
REAR(left)
REAR(right)
Wide Mode: Select this mode if your
center channel speaker is a traditional
full range loudspeaker.
FRONT(left) FRONT(right)
REAR(left)
REAR(right)
Phantom Mode: Select this mode if a
center channel speaker is not used. The
PT2500 will create a “phantom” center
channel using the outputs of the left and
right speakers. Note that the Phantom
mode is not available when Dolby 3
Stereo is selected as a surround mode.
REAR(left)
REAR(right)
Normal Mode: Select this mode if your
center channel is small and has limited
bass response. Most specialized center
channel speakers fall into this category.
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Operation
11
OPERATION
1. Press the Power button 1 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 button b 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 1.
2. Select the desired program source
using the Input Selector Switches
9)fon 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
2.
• 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 proper “VIDEO” input to view the signal.
3. Choose a surround mode using the
Surround Mode Selector 6h
buttons on the front panel or remote. To
listen to traditional two channel stereo
press the Surround Off button 5h.
4. Adjust the Center Channel Mode
7o and/or Delay Time 4g 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 ^n .
• To temporarily silence the system press
the Mute button m 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 3.
• At lower volume levels you may wish to
engage the Loudness button % to
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 channel 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
6h.
If a center channel speaker is used along
with front left/right speakers, but no surround speakers are used, choose the
Dolby 3 Stereo mode6h. 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 conventional stereo signals. Center channel dialog information will continue to be
heard through its proper place at center
screen.
When listening to conventional stereo
recordings or programs, those with separate left and right channels but no intentionally 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 information.
Stereo recordings may also sound more
expansive in either the Theater or
Stadium modes. Selecting these modes
6h uses the front left and right
speakers for normal stereo, while the surround speakers are fed a reverberated
sound. In order to provide for a wider
variety of sound field effects, the surround channel delay available in the
Theater and Stadium modes is substantially greater than that in Dolby
ProLogic.
NOTE: The center channel speaker is
not operational in the Theater or
Stadium modes.
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Operation
12
Tuner Operation
The PT2500’s built in tuner is capable of
tuning AM, FM or FM Stereo broadcast
stations. Stations may betuned manually,
automatically or via presets.
Manual Tuning
1. Press the Tunerbutton )f to
select the tuner as an input.
2. Select the AM or FM band using the
front panel AM/FM selector (.
3. Press the Tuning
⁄¤
Óc but-
ton to until the desired station is tuned.
Holding the button down will cause a
rapid advance through the frequency
band, tapping it lightly will advance
through bands one increment at a time.
The TUNED indicator will illuminate
when a station is received with sufficient
strength for quality reception.
4. Press the FM Mode Ô button to
switch between mono and stereo reception. When a station’s signal is weak,
press the button until the FMSTindicator in the information display goes
out. This will switch the tuner to mono,
but it may enable clearer reception.
Auto Tuning
1. Press the Tunerbutton )f to
select the tuner as an input.
2. Select the AM or FM band using the
front panel AM/FM selector (.
3. Press the Auto/Man * button.
4. Press the TuningÓc button once
and tuning will start in the direction
indicated. The tuner will stop at the first
station with sufficient signal strength.
Preset Tuning
Up to 30 stations may be stored in the
receiver’s memory for easy recall using
the front panel controls or the remote.
To enter a station to the memory, first
tune to the station using the steps outlined above in the Manual Tuning
section. Then:
1. Press the Memory Ú button on
the front panel. Note that the MEM
indicator in the Information Display
window will illuminate and flash.
2. Within five seconds, press the
Numeric Buttons Ùd
corresponding to the memory location
where you wish to store this station’s
frequency.
• To enter a station to memory location
“30” press only the 0 button.
3. Repeat the process after tuning to any
additional stations to be preset.
Recalling Preset Stations
To select a station previously entered into
the preset memory press the Numeric
Buttons Ùd on the front panel or
the remote corresponding to the desired
station’s location. To select the station in
location “30”, press the 0 button only.
• When you select a station using this
method the unit will automatically
switch to the tuner as its input.
Preset Station Scan
Toautomatically scan through the stations entered in the preset memory,press
the P•Scan r button on the remote.
The tuner will automatically begin to
search through the list of stations,stopping for four seconds at eachone. Press
the P•Scan button again to stop the scan
at your desired station.
Sleep Timer
The PT2500 may be placed in a “Sleep
Mode” mode by pressing the Sleep
Timer l button on the remote.
Each press of the button increases the
time until the unit shuts off in the following increments:
10
20
30
60
90
min
min
min
min
min
OFF
The sleep time will be displayed at the
right side of the Information Display
while the timer is being programmed.
Once the amount of time entered has
elapsed, the PT2500 will automatically
go into the Standby mode, shutting off
all functions as well as the remote amp
trigger and the switched outlets.
Tape Recording
In normal operation, the audio or video
source selected for listening through the
PT2500 is sent to the record outputs. This
means means that any program you are
watching or listening to may be recorded
simply by placing machines connected to
the outputs for TAPE1 § or VCR1 ‚
in the record mode.
To dub an audio tape place the blank
tape in the machine connected to
Tape 2 and put it in the record mode.
Place the program tape in the machine
connected to Tape1 and put it in the
play mode. Select Tape2 Mon as the
input source 9f to monitor the playback of the dub if the recorder has a
three head system.
PT2500 rev (G) 10/23/96
•PT2500(g).qx 10/23/96 7:36 AM Page 14
This unit is designed for trouble-free operation. Most problems users encounter are due to operating errors. So, if you have a problem,
first check this list for a possible solution. If the problem persists, consult your authorized Harman Kardon Service Center.
If the problem is... Make sure that the...
No lights illuminate when POWER button is pressed Unit is plugged into a live outlet
No sound is heard Unit has been muted
Dolby Surround does not work on center and rear channels Correct surround mode is selected
Troubleshooting
13
Correct input function selector button has been pressed
Volume is turned up
Connections are properly made to the amplifier
Rear and Center levels are turned up
You are using a surround encoded source
Selecting video component produces sound but no picture Video cables are connected properly
Monitor output is connected to the video input on TV
The TV picture does not match the sound Video sources are properly connected to receiver
Video/Antenna Switch on TV is set to Video
No output from one or more channels Cables are not defective: Check/replace interconnect cables
The program source is operating and providing proper
signal output to the PA5800
No center channel output Dolby surround or movie mode is turned on
Phantom mode is not active
Unit is in the ProLogic or Dolby 3 Stereo mode
Center channel level is properly adjusted
Tuner sound has a large amount of interference, or The antenna is properly connected
The “Stereo” display is not illuminated, or The antenna is properly located
Tuner sound distorts and/or volume level is too low The antenna is set in the proper direction
The antenna is adequate to receive the desired station
Tuner is intermittent or continuously buzzing or hissing The unit is away from fluorescent lights, TVs, motors and
other electrical appliances
Stations cannot be preset After pressing the MEMORY button, the PRESET button is
pressed while the memory indicator blinks
PT2500 rev (G) 10/23/96
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Specifications
Preamplifier Section
Signal-to-Noise Ratio (ref. 1 Volt, A-Wtd)
Phono (MM): 74dB
Video, CD: 92dB
Input Sensitivity/Impedance
Phono (MM) 2.5mV/47kΩ,
125pF
Video, CD, Tape 150mV.22kΩ
Phono Overload:
RIAA EQ Accuracy (20Hz-20KHz): ±1.0dB
Tone Control Range
Bass @100Hz: ±10dB
Treble @10KHz: ±10dB
Loudness Contour @–40dB, 100Hz/10kHz: +6dB/+3dB
Tuner Section: FM
Usable Sensitivity, Mono (dBf): 11.2
50dB Quieting Sensitivity, Stereo (dBf): 37.2
Signal-to-Noise Ratio @65dBf, mono/stereo 74dB/70dB
Capture Ratio: 1.5dB
Selectivity, Adjacent/Alternate Channel: 5dB/65dB
IF Rejection: 100dB
Am Rejection @45dBf: 55dB
Stereo Separation @1KHz, 65dBf: 45dB
THD @1KHz, 65dBf, mono/stereo (%) 0.2/0.3
Tuner Section: AM
Sensitivity, External Antenna: 25µV
Alternate Channel Selectivity: 55dB
Image Rejection: 35dB
IF Rejection: 60dB
Dimensions (WxHxD)
inches: 17-3/8 x 6-1/8 x 16-1/2
mm: 440 x 155 x 420
Weight (lbs/kgs): 17.1/7.8
Depth measurement includes knobs, buttons and antennas.
Height measurement includes feet.
All features and specifications are subject to change without notice.
Manufactured under license from Dolby Laboratories Licensing Corporation.
Additionally licensed under one or more of the following patents: U.S. number 3,959,590,
Canadian numbers 1,004,603 and 1,037,877. “Dolby”, “ProLogic” and “TimeLink” are
registered trademarks of Dolby Loboratories Licensing Corporation.
Printed in Korea Part #1111-PT2500
9007017884
PT2500 rev (G) 10/23/96
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