Adcom GTP-880 User Manual

1ADCOM GTP-880 Owner’s Manual |

3ADCOM GTP-880 Owner’s Manual |

WELCOME

Dear fellow ADCOM product owner,

Welcome to the ADCOM family! For more than twenty years, ADCOM products have delivered excellent performance and value for customers around the world. Our products are designed by our experienced and demanding engineering team, built to the highest standards in our factory, and sold and serviced through dealers, custom installers, and other retailers whose primary goal is your complete satisfaction.

We know you are anxious to hear your new preamplifier in action, but please take a few minutes to read this owner’s manual before connecting the preamplifier to your system. It is particularly important that you connect your preamplifier to your amplifier while the amplifier and preamplifier are unplugged and your other equipment is turned off. This will protect your equipment from potential short circuits that may occur during installion. In addition, it is important that you allow for adequate ventilation around your preamplifier and other equipment, since excessive heat buildup can shorten the life of any electronic product, including the preamplifier. Once you have correctly connected your new preamplifier to your other components, you should be able to enjoy many trouble-free years of performance.

We conduct a thorough quality and performance test on each and every preamplifier we build in our factory prior to shipment. In the rare case of a defect that may occur after shipment, we stand behind our preamplifiers with a five-year parts and labor warranty. To register for this warranty, please complete and mail the enclosed warranty card back to ADCOM. Also, please keep a copy of your sales receipt with the owner’s manual so you may provide proof of eligibility for the warranty should the need arise.

We know you will be very happy with the sound and performance of your new preamplifier. We hope you will also consider other ADCOM products, such as our line of multichannel amplifiers and DVD players. In addition, we design and manufacture complementary products such as surge suppressors and speaker selectors. Please visit our web site at www.adcom.com to learn more about our complete line of stereo, home theater, and distributed audio/video products.

On behalf of all of us at ADCOM, I want to thank you for selecting our product for your home or business entertainment system.

Sincerely,

Douglas Klein President ADCOM A division of Klein Technology Group, LLC

| ADCOM GTP-880 Owner’s Manual2

Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Unpacking your GTP-880 . . . . . . . . . . . . . . . . . . . . . . 5

Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . 5

Description of Unit

1.1 Front Panel Illustration . . . . . . . . . . . . . . . . . . . . 6

1.2 Introduction to the GTP-880 . . . . . . . . . . . . . . . 6

1.3 Interface Overview . . . . . . . . . . . . . . . . . . . . . 6-9

1.4 Surround Formats . . . . . . . . . . . . . . . . . . . . . 9-10

1.5 Rear Panel Illustration . . . . . . . . . . . . . . . . . . . 12

1.6 Input & Output System Connections . . . . . 13-15

1.7 Connecting Components . . . . . . . . . . . . . . . 15-23

Remote Control

2.1 Remote Control Illustration . . . . . . . . . . . . . . . 24

2.2 Overview of the GRC-810 . . . . . . . . . . . . . . . . 25

2.3 Remote Features . . . . . . . . . . . . . . . . . . . . . 25-26

2.4 Remote Function Table . . . . . . . . . . . . . . . . 26-31

2.5 Programming the ADCOM GRC-810 . .. . . . . 32-33

2.6 Programming Macro Buttons . . . . . . . . . . . . . . 33

2.7 Function and Data List (Discrete) . . . . . . . 34-35

Setup

3.1 Setup Overview . . . . . . . . . . . . . . . . . . . . . . . . . 36

3.2 On Screen Display . . . . . . . . . . . . . . . . . . . . . . . 36

3.3 Input Configuration . . . . . . . . . . . . . . . . . . . 36-37

3.4 Speaker Configuration . . . . . . . . . . . . . . . . . 37-39

3.5 Channel Configuration . . . . . . . . . . . . . . . . . 39-41

Channel Calibration Channel Trim

3.6 Delay Configuration . . . . . . . . . . . . . . . . . . . 41-42

3.7 System Configurations . . . . . . . . . . . . . . . . . 42-43

3.8 Prologic II and Neo:6 Music Config . . . . . . 43-44

3.9 Room Two Configuration . . . . . . . . . . . . . . . 44-45

3.10 Additional Options . . . . . . . . . . . . . . . . . . . 45-46

Resolving Problems . . . . . . . . . . . . . . . . . . . . . . . . . 48

Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Caring for your GTP-880 . . . . . . . . . . . . . . . . . . . . . 50

Service Information . . . . . . . . . . . . . . . . . . . . . . . . . 50

GTP-880 Specifications . . . . . . . . . . . . . . . . . . . . . . 51

3ADCOM GTP-880 Owner’s Manual |

5ADCOM GTP-880 Owner’s Manual |

THE FOLLOWING PRECAUTIONS AND SAFETY INSTRUCTIONS

ARE REQUIREMENTS OF UL AND CSA SAFETY REGULATIONS

Warning: To reduce the risk of re or electric shock, do not expose this unit to rain or moisture.

The graphic symbol of a lightning ash with an arrow point within a triangle signies that there is dangerous voltage within the unit and it poses a hazard to anyone removing the cover to gain access to the interior of the unit. ONIy qualied service personnel should make any such attempt.

The graphic symbol of an exclamation point within an equilateral triangle warns a user of the device that it is necessary to refer to the instruction manual and its warnings for proper operation of the unit.

Do not place this unit on an unstable cart, stand, tripod, bracket, or table. The unit may fall, causing serious injury to a child or adult, and serious damage to the unit. Use only with a cart, stand, tripod, bracket, or table recommended by the manufacturer or sold with the unit. Any mounting of the device should follow the manufacturer’s instructions, and should use a mounting accessory recommended by the manufacturer.

Read all the safety and operating instructions before connecting or using this unit.

Retain this notice and the owner’s manual for future reference.

All warnings on the unit and in its operating instructions should be adhered to.

All operating and use instructions should be followed.

Do not use this unit near water. For example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool.

POUR PREVENIR LES CHOCS ELECTRIQUES NE PAS UTILISER CETTE FICHE

ATTENTION

POLARISEE AVEC UN PROLONGATEUR, UNE PRISE CE COURANT OU UNE AUTRE SORTIE CE COURANT, SAUF SI LES LAMES PEUVENT ETRE INSEREES A FOND SANS EN LAISSER AUCUNE PARTIE A DECOUVERT.

CAUTION

TO PREVENT ELECTRIC SHOCK DO NOT USE THIS POLARIZED PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.

CAUTION POWER LINES

Any outdoor antenna must be located away from all power lines.

OUTDOOR ANTENNA GROUNDING

If an outside antenna is connected to your tuner or tuner/preamplier, be sure the antenna system is grounded so as to provide some protection against voltage surges and built-up static charges. Section 810 of the National Electrical Code, ANSI/NFPA No. 701984, 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 for the grounding electrode.

a. Use No.10 AWG (5.3 mm2) copper, No.8 AWG (8.4 mm2) aluminum, No.17 AWG (1.0 mm2) copper clad steel or bronze wire, or larger, as a ground wire.

b. Secure antenna lead-in and ground wires to house with stand-off insulators spaced from 46 feet (1.221.83 m) apart.

c. Mount antenna discharge unit as close as possible to where lead-in enters house.

d. Use jumper wire not smaller than No.6 AWG (13.3 mm2) copper, or the equivalent, when a separate antenna grounding electrode is used. See NEC Section 810-21 (j).

EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS CONTAINED IN ARTICLE 810. RADIO AND TELEVISION EQUIPMENT.

The unit should be installed so that its location or position does not interfere with its proper ventilation. For example, it should not be situated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or placed in a built-in installation, such as bookcase or cabinet, that may impede the ow of air through its ventilation openings.

The unit should be situated away from heat sources such as radiators, heat registers, stoves, or other devices (including ampliers) that produce heat.

The unit should be connected to a power supply outlet only of the voltage and frequency marked on its rear panel.

The power supply cord should be routed so that it is not likely to be walked on or pinched, especially near the plug, convenience receptacles, or where the cord exits from the unit.

Clean unit only as recommended in its instruction manual.

The power supply cord of the unit should be unplugged from the wall outlet when it is to be unused for a long period of time.

Care should be taken so that objects do not fall, and liquids are not spilled, into the enclosure through any openings.

This unit should be serviced by qualied service personnel when: A. The power cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled, into the unit; or C. The unit has been exposed to rain, or liquids of any kind; or D. The unit does not appear to operate normally, or exhibits a marked change in performance; or E. The device has been dropped, or the enclosure damaged.

DO NOT ATTEMPT SERVICING OF THIS UNIT YOURSELF.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

| ADCOM GTP-880 Owner’s Manual4

This reminder is provided to call the CATV system installer’s attention to Article 82022 of the National Electrical Code that provides guidelines for proper grounding and, in particular, species that the cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as practical.

NOTE TO CATV SYSTEM INSTALLER

Unpacking the GTP-880

Before your new ADCOM tuner-preamplifier left our factory, it was carefully inspected for physical imperfections and test-

ed for all electrical parameters as a routine part of ADCOM’s systematic quality control. This, along with full operational

and mechanical testing, should ensure a product flawless in both appearance and performance. After you have unpacked

the GTP-880, inspect it for physical damage. Save the shipping carton and all packing material as they are intended to

reduce the possibility of transportation damage should the preamplifier ever need to be shipped again. In the unlikely

event damage has occurred, notify your dealer immediately and request the name of the carrier so a written claim to

cover shipping damages can be initiated. The right to a claim against a public carrier can be forfeited if the carrier is

not notified promptly in writing and if the shipping carton and packing materials are not available for inspection by the

carrier. Save all packing materials until the claim has been settled.

ADCOM Protection Plan (USA only)

ADCOM offers the enclosed valuable limited warranty. Please read the details on the warranty card carefully to understand

the extent of the protection offered by the warranty, its reasonable limitations, and what you should do in order to obtain

its benets. Be sure to verify that the serial number printed on the rear panel matches the serial number on the outer

carton. If any number is altered or missing, or if the ADCOM warranty card is not included in the carton, you should

notify us immediately in order to ensure that you have received a genuine ADCOM product which has not been opened, mishandled, or tampered with in any way. Always retain your original sales receipt as a proof of purchase.

This unit is manufactured under license from Dolby Laboratories Licensing Corporation. It is additionally licensed under

one or more of the following patents: U.S. number 3,959,GTP-880, Canadian numbers 1,004,603 and 1,037,877.

Dolby® Pro Logic®, Dolby ProLogic II®, Dolby Digital EX®, and Dolby Digital® are registered trademarks of Dolby

Laboratories Licensing Corporation.

Manufactured under license from Digital Theater Systems, Inc. US Patent Number 5,451,942 and other world-wide

patents issued and pending. “DTS®,” “dts®,” “DTS Digital Surround®,” “DTS-ES®,” “DTS NEO:6®” are trademarks of

5ADCOM GTP-880 Owner’s Manual |

7ADCOM GTP-880 Owner’s Manual |

1.1 Front Panel Illustration

5 5

[1]

Standby Power Button

[2]

Room Two Control

[3]

Bass & Treble

1.2 Introduction to the GTP-880

Congratulations on your decision to purchase the ADCOM

GTP-880 tuner-preamplifier. The GTP-880 provides Dolby

Digital and DTS decoding with 7.1 output channels and

the RDS (Radio Data System) tuner. You have made a wise

choice that will reward you for years to come with excep-

tionally accurate and musical sound reproduction. To real-

ize the full potential of your new preamplifier, and before

making any connections to it, please read these operating and installation instructions thoroughly.

1.3 Interface Overview

The GTP-880’s front panel is designed for ease of

operation. All controls are logically grouped for easy,

intuitive operation. Familiarize yourself with the preced-

ing diagram and read the short explanations of each fea-

ture below. When you finish, you will be well on your way

to enjoying the GTP-880’s convenience and sound quality.

[1]

Standby Power Button

Pressing this button turns the unit on, indicator is red.

Pressing this button again returns the GTP-880 to standby

mode. The standby indicator is amber.

In this mode of operation, the front panel display is turned

off, control functions are disabled, and all outputs to the

main room are turned off. Outputs to room two remain

active and available. It should be noted that they are only

“active” oif room two power is on.

[4]

Analog Direct Select

[5]

Digital Tuner Controls

[6]

Front Panel Display

[7]

Source Selections

[8]

Volume Control Knob

[9]

Surround Mode

Note: The rear panel power switch must be on for this

button to function.

[2]

Room Two Control

The GTP-880 has the ability to play and control an analog

audio signal in a second room from the front panel or

remote control. Any of the incoming analog audio signals

can be distributed to the second room, with the exception

of analog direct inputs.

On/Off Button: Pressing this button activates the room

two functionality and control. The on/off indicator light

illuminates.

Note: This light will remain lit when the other

indicators are off, as long as the second room is active.

Pressing this button again turns room two off, indicator

light extinguishes.

Setup Button: Pressing this button enters the room two

setup mode, pressing this button again will cycle a list of

room two options. Use the volume control knob to make

selections while in setup.

After entering setup the first option presented turns room

two off or on. Pressing this button again gives the option

to select a source to be played in room two.

Pressing this button again presents the option to mute the

output in room two.

| ADCOM GTP-880 Owner’s Manual6

Pressing this button again presents the option to set the

listening volume in room two, range is -80dB to 10dB.

Note: If no other selection is made while in setup, selections

will be saved and configuration will exit within 5 seconds.

[3]

Bass & Treble Adjustments

These buttons control bass and treble equalization.

Adjustments are made in 2dB steps.

Bass Button: Pressing this button displays current bass

setting, range is from -8dB to +8dB. Use the volume knob

to make an adjustment.

Treble Button: Pressing this button displays current treble

setting, range is from -8dB to +8dB. Use the volume knob

to make an adjustment.

Bypass Button: Defeats the tone controls and provides

an unaltered, full-bandwidth stereo signal to the left and

right channel outputs on the rear panel. However, the

subwoofer DSP crossover remains active and bass frequen-

cies are available at the subwoofer output should you

wish to augment your front L/R speaker’s low frequency

performance. The word “bypass” appears in the front

panel display. Pressing the button again returns the unit to

the previously selected tone settings.

[4]

Analog Direct Selections

These buttons select audio inputs from analog multichannel

sources such as DVD Audio or SACD players. The 2 channel but-

ton bypasses the DSP processing for the main selected input.

Bypass 2 Channel mode provides straight two channel listen-

ing. This mode is only applicable with an analog source, as this

input signal bypasses all processing sending a full-range signal

to the front Left and Right channels. However, if the user

has set Subwoofer to be on in the system setup, a Low Pass

Filtered matched signal to the crossover frequency set for the

front left and right channels will be sent to the subwoofer

in order to help reinforce the low-frequency response of the

system. If the user truly has full-range speakers (20Hz-20kHz)

and does not desire to have this bass reinforcement signal,

the user need only disable the subwoofer in the system setup

or in their system.

[5]

Digital Tuner Controls

FM/AM Button: Toggles between AM and FM frequency bands.

FM Mode Button: Sets the FM tuner to mono mode. The

letter “M” appears next to the tuner preset number in the

front panel display. Pressing the button again returns the

FM tuner to stereo mode.

The letter “S” will appear ONLY when a stereo station has

been locked by the Digital Tuner. A flashing “S” indicates

that the particular chosen station signal strength is not

strong enough for the Digital Tuner to “lock” onto the ste-

reo signal. In this instance, the user may want to consider

placing the tuner into mono mode.

Memory Button: Pressing this button when FM or AM is select-

ed as the input source memorizes the current station frequency

into one of the presets. You can preset up to 32 stations.

Tuner Up/Down Buttons: The function of these buttons depends

on the tuning mode selected with the tune/preset button.

In preset mode (indicated in the display area): Press the

down button to scroll to a lower number preset; press the

up button to scroll to a higher preset number. This is a

“wrap-around” function, so that going from the highest

number preset, the tuner will go to the lowest preset

number or vice-versa when tuning either up or down.

In tune mode: Press the up or down button for more than

1/2 second to engage automatic tuning respectively up or

down the frequency band. The tuner will search automati-

cally for the first reasonably strong radio station, where it

will stop. Press the down/up button again for 1/2 second

to start searching again.

The GTP-880 tuner can receive AM, FM and FM stereo

broadcasts. Up to 32 stations can be preset and accessed from

the front panel or remote. Stations can also be tuned manually.

Note: Tuner reception cannot take place unless an appro-

priate AM and/or FM antenna is connected to the rear

panel of the GTP-880.

To operate the tuner:

1. Press the tuner button on the remote control once, or

press the tuner button on the front panel.

This indicates that the tuner is in FM, with stereo selected

as the surround mode. The number displayed next to the

tuner text is the preset number currently selected or last

selected, followed by the stereo reception indicator if the

station is being received in stereo. The numbers next to

the FM text are the frequency of the selected preset or

station. The numbers in front of the dB indication are the

current volume setting.

2. Press the AM/FM button on the remote control or the

front panel to change between AM and FM bands.

7ADCOM GTP-880 Owner’s Manual |

9ADCOM GTP-880 Owner’s Manual |

This display indicates that the tuner is in AM with a

selected preset and the frequency of that preset or

station. The numbers in front of the dB indication are the

current volume setting.

3. Use the tune buttons on the front panel or the remote

to change the tuner frequency. The new frequency will

be displayed to the left of the volume level on the front

panel display and OSD.

Pressing a tune button once increases or decreases the FM

frequency by .1 MHz and the AM frequency by 10 KHz.

4. Press and hold either the of the tune buttons on the

front panel or the remote to scan continuously up or

down the selected band. The tuner will stop on the next

available station when you release the button.

5. Press the FM mode button on the front panel to toggle

between stereo and mono.

If an FM station produces lots of noise or sound that cuts in

and out while in stereo, use this control to change the FM

mode from stereo to mono.

If you select mono as the operating mode an indicator will

appear next to the preset number.

To preset a radio station into memory:

1. Tune to the radio station you desire.

2. Press and hold the mem button on the remote or the

memory button on the front panel to store a station into a

preset location. The display will change to show the word

“memory” along with a ashing number.

To change a preset radio station:

1. Tune to the new radio station you desire.

2. Press and hold the mem button on the remote or the

memory button on the front panel. The display will change

to show the word “memory” along with a ashing number.

3. Quickly enter the new preset/memory location (01 through

32) using the numeric keypad on the remote. This replaces

the previously memorized preset with your new selection.

You have approximately ve seconds to enter a number.

[6]

Front Panel Display

Indicates program source, DSP mode, tuner preset and/or

frequency, digital input, volume level, and other GTP-

880/tuner operating information. Also displays menu

selections. Diming of the display may be accomplished via

the remote control or through the on screen display.

The front panel display provides visual feedback of the

current settings, surround modes and configuration menus

of the unit. Information is constantly displayed at the

front panel whenever the GTP-880 is turned on.

The information presented on the front panel is identical

to that shown on your TV monitor via the on screen dis-

play, allowing you to perform speaker settings, set up your

input sources, set the listening modes, and much more.

[7]

Source Buttons

These buttons select the active video and audio input for

the GTP-880. The source that is currently selected will be

shown in the front panel display and the LED in the source

button will be red.

3. Quickly enter the desired preset/memory location (01

through 32) using the numeric keypad on the remote. This

programs the radio station to that memory location. You

have approximately ve seconds to enter a number.

Up to 32 stations can be stored, randomly between AM and

FM, in memory as presets.

To tune to a radio station that you have preset:

1. Set the GTP-880 to tuner.

2. Use the numeric keypad on the remote control to enter

the two digit number of the preset that you want to hear.

The tuner frequency (and band if it is different then the

previously tuned station) changes to the new station in the

preset memory of the GTP-880.

| ADCOM GTP-880 Owner’s Manual8

DVD, Video 1, Video 2, Video 3, VCR, AUX, CD, Tape

Tuner: Pressing this button changes the source to the

built-in AM/FM digital tuner. Please refer to digital tuner

controls, previously detailed in this section for more

instructions on using the GTP-880’s tuner.

[8]

Volume control

The volume control adjusts the overall loudness of the

signals being fed to the preamplifier outputs. Unlike con-

ventional controls, the GTP-880’s volume control doesn’t

have a start or end position. Volume can also be adjusted

from the remote control using the master volume up or

down buttons. The volume control does not affect record-

ings made using the tape or VCR outputs but will affect

the signal going to the preamp outputs. The volume level

is indicated in the display panel when it is being adjusted,

and after three seconds the display defaults to its previous

status. Volume setting can range from -80dB to +10dB.

On the remote control, press the mute button to tempo-

rarily switch off the sound to the preamp outputs. Mute

mode is indicated by the word “mute” in the display area.

Press mute again or adjusting the volume will restore

sound. Mute does not affect recordings made using the

tape or VCR outputs but does affect the signal going to the

preamp outputs.

Adjusts the volume level for the main room only. Room

two is not affected by this control.

[9]

Surround Mode Buttons

With the surround mode buttons the available surround

sound modes can be selected. The selected surround mode is

permanently indicated in the display area and is also shown

for three seconds in the large text section of the display.

7.1m²™ Button: Pressing this button activates ADCOM’s

proprietary decoding algorithm.

This proprietary analog-domain post-processing technique

takes 5.1 channel or other sources that have surround

channel information and extracts a psuedo-stereo sur-

round back channel information. Only DSP modes that do

NOT generate more than 2 surround channels (e.g. - Dolby

Digital, DTS, 5 Stereo, Dolby Pro Logic, Dolby Pro Logic

II Cinema, Dolby Pro Logic II Music, DVD-Audio Bypass

Input, SACD Bypass Input) can benefit from ADCOM 7.1m2

post-processing. Trying to enable ADCOM 7.1m2 during any

other DSP mode (e.g. Dolby Digital EX, DTS-ES Extended

Surround, 7 Stereo, 2 Channel Bypass) is Invalid and will

be indicated as such by the system. Additionally if the

system setup up does NOT indicate that the system setup

offers 2 surround back channels, ADCOM 7.1m2 will never

be offered as option.

Pressing this button again turns 7.1m²™ decoding off and

returns to previously selected surround mode.

Select Left/Right Button: Pressing this button cycles

through list of available surround modes.

1.4 Surround Format Information

The GTP-880 provides decoding for Dolby Pro Logic®

II, Dolby Digital® 5.1, Dolby Digital EX®, DTS®, DTS-

ES® Discrete, DTS-ES® Matrix, DTS NEO:6® and ADCOM

7.1m²™. Within each mode, the GTP-880 also offers a wide

range of additional processing options. This means you can

precisely match a surround mode to your program mate-

rial, loudspeaker setup and personal taste. In addition,

the GTP-880 precision bass management feature provides

maximum exibility when setting up your audio surround

system (see “system setup” for further details).

ADCOM 7.1m²™: ADCOM’s proprietary decoding algorithm.

The 7.1m²™ decoding process mixes the signals from the

left surround and right surround channels to derive two

unique signals sent to each back output. The benefit of

our 7.1m²™ decoding process is enhance imaging between

the surround speakers and the creation of a more diffuse

ambient sound field. The 7.1m²™ process has the same

benefits when compared to other matrix decoding as

stereo signals have over mono signals. The 7.1m²™

process can also be used to drive your surround back

speakers when you are listening to an externally decoded

DVD audio or SACD multichannel disc. Due to the varying

nature of film soundtracks and music, you may prefer to

activate or deactivate the surround back channels. For

example, Dolby Digital 5.1 and DTS soundtracks benefit

greatly from the addition of the 7.1m²™ processing.

ProLogic soundtracks on the other hand provide a mono

surround signal track, which yields a less satisfying

experience when using the surround back channels.

Note: 7.1m2 decoding may only be applied to 5 channel signals.

Dolby Digital: This digital audio format provides 5.1-

channel surround sound. Dolby Digital source material

includes DVDs, laser discs, HDTV broadcasts, some satellite

delivered programming, and the output of some digital

cable set top boxes.

Dolby Digital Surround EX: This processing mode is a joint

development of Dolby Laboratories and the THX division

of LucasFilm, Ltd. Film soundtracks encoded with Dolby

Digital Surround EX technology contain an extra channel,

added to the soundtrack during mixing, called surround

back, which places audio behind the listener in addition to

the existing front left, front center, front right, surround

left, surround right, and subwoofer channels. This

additional channel provides more detailed imaging behind

the listener creating more depth, spacious ambience and

sound localization than before.

Note: Surround EX mode can also be engaged during the

playback of 5.1 channel material that is not Dolby Digital

Surround EX encoded. When used this way, signals from

the left and right surrounds are used to synthesize the

surround back channel. Results using this method will vary

9ADCOM GTP-880 Owner’s Manual |

11ADCOM GTP-880 Owner’s Manual |

depending on the source material.

Surround EX decoding is ONLY applicable to 2/2.0, 2/2/

.1, 3/2.0, 3/2.1 streams AND when there is one or two

surround back channels available in the system.

Dolby Pro Logic II: Dolby Pro Logic II is a substantial

enhancement to the original Pro-Logic process. In addition

to full-bandwidth surrounds, Pro Logic II provides three

unique user adjustable processing options: panorama;

dimension; and center width. Used primarily in Pro Logic.

decoder, even if they have a surround back speaker(s) in

their setup.

The GTP-880 will automatically sense the availability of

either DTS-ES format and automatically switch the pro-

cessing mode when required.

DTS NEO:6-C (Cinema): This processing mode can create

up to 6 full bandwidth channels from any matrix-encoded

2 channel source. Additionally, this mode can produce the

rear surround information from a 5.1 source.

Dolby Pro Logic II-C (Cinema): This processing mode can

create up to 6 full bandwidth channels from any stereo, 2

channel source, idea for use with movies.

Dolby Pro Logic II-M (Music): In music mode there are

three additional adjustments.

Panorama provides an extension of the front stereo image

to the surround channels creating an enveloping, wrap-

around effect.

Dimension enables adjustment of the surround image

between the front and rear of your room. Certain types of

music benet from smoother overall balance and a more

natural sounding image.

Center width provides variable adjustment of the center

channel image and location, to create a more seamless

front soundstage as well as control of the sense of “width”

across the L/C/R loudspeaker array. A phantom center

image can also be created from just the left and right

front speakers.

DTS: This compressed digital data format is similar to Dolby

Digital. DTS also provides 5.1 channel surround channels and

is available on compact disc, DVD and laser discs. Audio-only

DTS discs may be used with any CD, LD or DVD player with a

digital audio output, but DVD discs with DTS audio must be

used on players with the “DTS Digital Out” logo.

DTS-ES: An extension of the original DTS format that

adds an additional sixth, or center surround, channel to

a soundtrack. DTS-ES Matrix 6.1 titles provide a surround

back channel by a matrix decoding process, while DTS-ES

Discrete 6.1 media deliver a true discrete center surround

channel. Both DTS-ES formats are backwards compatible

with the original DTS process, and will deliver a 5.1

channel output when no center or back surround speakers

are available. Additionally, the user may force the system

to decode a DTS-ES Matrix 6.1 stream or DTS-ES Discrete

6.1 stream using the DTS Digital Surround 5.1 channel

DTS NEO:6-M (Music): In music mode it can expand stereo

music material, into a multichannel surround experience.

Stereo: This mode provides conventional 2 channel signals

from a stereo or downmixed multichannel to the left and

right front speakers only. With an analog and digital input

source, the signal is decoded (if AC-3 or DTS) and then

downmixed (if a multichannel source) and then bass-

management is applied which allows for the HPF on the

front speakers to match the LPF set on the subwoofer.

Delays are offered on the front and subwoofer channel in

this mode as well.

Stereo 5: This mode is designed for use with stereo program

material. It is designed to get maximum output from all

your speakers. The rear speakers are driven with the same

signal as the front left and right, while the center speaker is

a monophonic summation of the front speakers.

Stereo 7: This mode is designed for use with stereo program

material. It is designed to get maximum output from all

your speakers. The rear speakers are driven with the same

signal as the front left and right, while the center speaker is

a monophonic summation of the front speakers.

Additional Information

More detailed information about the various surround

processing options contained in the GTP-880 can be found

on the following websites:

www.dolby.com & www.dtsonline.com

| ADCOM GTP-880 Owner’s Manual10

Placement of your GTP-880

Your system components need a stable, vibration-free

supporting surface. Your ADCOM dealer will be pleased to

show you many different types of audio/video equipment

racks and cabinets. Keep the GTP-880 (and other audio/

video components) away from moisture and out of direct

sunlight. Bear in mind that the GTP-880’s rear panel is the

central connecting point for almost every component in

your audio/video system. Leave sufcient room behind the

rear panel to accommodate cables, antenna leads, power

cords, etc. We recommend a minimum of 5 inches of free

space behind the GTP-880 for maximum exibility.

A distance of 1/2” should be maintained around the GTP-

880 for ventilation. Keep your GTP-880 in a room where

temperatures remain fairly moderate, and never cover

it with table cloths, curtains, newspapers, etc., to avoid

potential overheating.

11ADCOM GTP-880 Owner’s Manual |

13ADCOM GTP-880 Owner’s Manual |

1.5 Rear Panel Illustration

[10] DVD Component Video Input

[11] Video 1 Component Input

20 21

[21] IR Inputs (main/room 2)

[22] Room 2 Analog Audio Output

[12] Video 2 Component Input

[13] Monitor Component Output

[14] Analog Audio Source Inputs

[15] AM/FM Antenna Inputs

[16] S-Video Inputs

[17] S-Video Output

[18] Composite Video Inputs

[19] Composite Video Output

[20] 12V DC Trigger (main/room 2)

| ADCOM GTP-880 Owner’s Manual12

[23] RS232 Control (DB9)

[24] SACD Input (DB25)

[25] DVD Audio Input

[26] Analog Bass Management

[27] Main Analog Audio Output

[28] Digital Audio Inputs

[29] Digital Audio Outputs

[30] Main Power Switch

[31] AC Input

1.6 Input & Output System Connections

Like the front panel, the GTP-880’s rear panel is carefully

arranged to make hookup, configuration, and use as sim-

ple as possible. However, the GTP-880’s capabilities take

some study to use most effectively. We strongly suggest

that you read this section of the manual before beginning

to hook up your system. You will save yourself much time

and effort if you carefully think out what you expect from

your system: consider the components you will use, where

they’ll be placed, and how you will want them to work

together. The diagrams and notes in this section will prob-

ably answer most of your questions about interfacing the

GTP-880 with other components in your system.

Note that the GTP-880’s RCA-style jacks have color-coded

centers to make connections easier. Use this key to help

route cables properly:

RED centers = RIGHT CHANNEL ANALOG AUDIO inputs or outputs

WHITE centers = LEFT CHANNEL ANALOG AUDIO inputs or outputs

YELLOW centers = video inputs (composite)

Note: No on screen text messages are available on

component video.

[15]

AM/FM Antenna Inputs

FM Antenna terminal: Use to connect the supplied FM

antenna or an external 75 Ω antenna. Do not over tighten

as this may damage the connection.

The supplied FM antenna is for indoor use only. For best

signal reception you must fully extend the antenna. Ex-

periment with the antenna’s position to obtain the stron-

gest signal. You can attach it to a wall or other surface

using push pins or similar apparatus.

If reception is poor with the supplied indoor antenna, using

an amplified indoor or outdoor antenna is recommended.

Note: You can only connect a 75Ω type FM antenna to the

GTP-880. If you choose to use an antenna other than the

one supplied, be sure to verify that it has the correct type

of connector or that you obtain an appropriate adaptor.

Try to avoid using the same antenna for both FM and TV

reception since the signals can interfere with each other.

If you must use a common FM/TV antenna, be sure that

you install an splitter to separate the two signals.

BLACK centers = DIGITAL AUDIO inputs and CENTER CHANNEL and SUBWOOFER inputs and outputs

[10]

DVD Component Video Input

Use this set of dedicated jacks to connect a DVD player

with component video output.

[11]

Video 1 Component Input

Use this set of jacks to connect devices with component

video outputs such as a DVD player or HDTV tuner.

[12]

Video 2 Component Input

Use this set of jacks to connect devices with component

video outputs such as a DVD player or HDTV tuner.

[13]

Monitor Component Video Output

Use these jacks to supply component video output to an

external monitor that accepts component video signals.

Note: No OSD is available on the component video output.

[14]

Analog Audio Source Inputs

Use these inputs for connection to analog audio sources

such as a CD player. One in/out tape loop is provided for

connection to an audio recorder.

AM Antenna terminals: Connect the supplied AM loop

antenna or an external AM antenna to these terminals.

Connect the AM antenna to the terminals labeled AM and

gnd (ground) on the rear panel of the GTP-880. Start by

pressing the lever on the side of one of the terminals to

the right. Next, insert one of the antenna wires into the

opening. Finish by returning the lever to the up position,

securing the wire. Do the same for the other wire to

complete installation.

[16]

S-Video Inputs

Use these inputs for connection to the s-video output from

sources such as a DVD or LD player, satellite receiver, cable

box, PVR or other video source. Note that when the compo-

nent video inputs are used, connect the analog audio outputs

of the source to the DVD or Video 1 jacks, as appropriate.

Connect the VCR-OUT jack to the input of a VCR or other

recorder and connect the OUT jack to an s-video input on

your video display device.

[17]

S-Video Main Output

Connect this output to the s-video input of your monitor or

other video display device.

13ADCOM GTP-880 Owner’s Manual |

15ADCOM GTP-880 Owner’s Manual |

[18]

Use these inputs for connection to the composite video

output from sources such as a DVD or LD player, satellite

receiver, cable box, PVR or other video source. Note that

when the component video inputs are used, connect the

analog audio outputs of the source to the DVD or video 1

jacks, as appropriate.

[19]

Connect this output to the composite video input of your

monitor or other video display device.

[20]

The DC trigger jacks are used to remotely turn-on other

devices in your system when the GTP-880 is powered on.

Power is applied to the main trigger output jack when the

GTP-880 is turned on from the standby mode. We recom-

mend that this jack be used to turn on a compatible power

amplifier such as those available from ADCOM, but it may

also be used to activate compatible products such as

projection screens or motorized blinds.

Connect a mono mini-plug between the DC trigger main

jack on the rear panel of the GTP-880 and the low voltage

trigger jack of the device to be controlled to enable re-

mote turn-on of that component. The room 2 trigger jack

is activated when the room two system is turned on and

should be used for control of amplifiers used to power the

speakers installed in room two. It will remain activated as

long as the room two system is on, even when the GTP-880

is in the standby mode for the main room.

[21]

Use the main and room two remote jacks to connect

external IR sensors to the GTP-880. When the unit is

installed behind doors or where it is not otherwise visible

to the remote, connect an optional, external sensor to the

main jack. To control the GTP-880’s room two system from

a remote location, connect an optional remote sensor in

the second room to the room two jack.

Composite Video Inputs

Composite Video main Output

12V DC Trigger (main/room 2)

IR Inputs (main/room 2)

The room two jack is provided to enable remote control

of the GTP-880’s room two system through the use of an

optional remote sensor in the second room. Connect the

sensor to the room two jack using a mono mini-plug and

the wiring specified by the sensor’s manufacturer.

[22]

Room 2 Analog Audio Output

Use these jacks to supply the analog stereo audio output

to an optional audio amplifier used to power the speakers

in room two.

Use the L and R channel room two out audio jacks to con-

nect the GTP-880 to the analog audio inputs of an external

amplifier or other audio component in a second room. The

analog signal present will reflect the input selection of the

GTP-880. This may be adjusted using the room two menu

or the rm. 2 button on the remote control.

[23]

RS232 Control (DB9)

Allows control of the GTP-880 via computer or home

automation system.

[24]

SACD Inputs (DB25)

Connect the multichannel signal from the analog audio

outputs of a device such as a DVD, DVD-A or SACD.

[25]

DVD Audio Inputs

Connect the multichannel signal from the analog audio

outputs of a device such as a DVD, DVD-A or SACD.

[26]

Multichannel Analog Bass Management

Analog bass management is totally separate from the DSP

bass management, set up using a three position switch on

the rear panel, and applied to multichannel analog inputs.

Up Position: LPF/HPF both on

This position is ideal for owners who have speakers that

only have a frequency response that goes down to around

80Hz (@-3dB). All bass information is summed, low-pass-

filtered (@ 80Hz) and sent to the subwoofer.

80Hz high-pass crossover for L, C, R, LS, and RS: (12dB/octive)

The remote jacks allow you to extend the on-board remote

control sensor on the GTP-880’s front panel so that you may

continue to control the GTP-880 even when it is installed

behind solid or smoked cabinet doors or when the front

panel sensor is otherwise not visible to the remote control.

To extend the remote sensor connect an optional remote

sensor to the main jack.

| ADCOM GTP-880 Owner’s Manual14

80Hz low-pass crossover for subwoofer: (12dB/octive)

Middle Position: LPF on/HPF bypassed (subwoofer bass

reinforcement mode)

This position is also ideal for owners who have speakers

in their system that are full range (or at least have a

frequency response that extends below 80Hz) however

the user still desires that summed and low-pass-filtered

audio information be sent to the subwoofer which helps to

reinforce the low-end frequency response of the system.

80Hz low-pass crossover for subwoofer: 12 dB/octave

Down Position: LPF/HPF complete bypass path (analog

multichannel input bass management disabled)

This position is ideal for DVD-Audio/SACD multichannel

players which already include integrated bass management,

a user has another multichannel analog bass management

device, or all speakers in the system are full-range.

[27]

Main Analog Audio outputs

Use the seven audio channel output jacks to connect the

GTP-880 to an external power amplifier. The eighth jack

supplies the output to a powered subwoofer or external

subwoofer amplifier.

[28]

Digital Audio Inputs

Use these inputs to connect the coaxial and optical digital

audio signal output from such digital devices as CD, DVD or

LD players. These inputs are fully assignable using the OSD.

[29]

Digital Audio Outputs

Use the coaxial and optical digital outputs to connect the

GTP-880 to a device such as CD recorder, DAT recorder, or

other similar device that accepts a digital audio input.

[30]

Main Power Switch

Turns the current to the GTP-880 on or off. Setting this

button to the on position (pushed in) supplies power to

the unit, enabling use of the standby power button on

the front panel. When the main power switch is in the off

position, current is cut off to the unit.

[31]

AC Input

Use to connect the supplied AC power cord (see page 2).

Before proceeding, please observe the following precau-

tions when connecting devices to your new GTP-880.

Do not plug the power cord into your GTP-880 until all other connections have been made.

Insert the supplied power cord into the AC input of the

rear panel of the GTP-880. Do not use a power cord other

than the one supplied with the GTP-880. It’s designed for

use with the GTP-880 and should not be used with any

other device.

Warning: Never disconnect the power cord from the GTP-880

while the other end is plugged into an AC outlet. Doing so may

cause an electric shock. Always connect power by plugging into

the AC outlet last and disconnect by unplugging from the AC

outlet first.

1.7 Connecting Components

Always refer to the instructions that came with the com-

ponent that you are connecting for specific procedures,

warnings and options.

For all analog connections, the red input jacks (R) are

used for the right channel, white input jacks (L) are used

for the left channel, and yellow input jacks (V) are used

for the composite video connection.

Make sure to insert all plugs and connectors securely. Im-

proper connections can result in noise, poor performance,

or damage to the equipment.

Do not bundle audio/video connection cables with power

cords and speaker cables. Doing so may adversely affect

the picture and sound quality. For example, run all the

power cords down one side of the cabinet, all the signal

cords down the other side, and the speaker wires down

the center.

When connecting devices to the digital inputs and outputs,

you may also consider hooking up the analog connections

to and from the components to insure that all signals can

be employed by the GTP-880.

When using the optical input or output jacks, remove the

protective cap and keep it in a safe place. When these

jacks are not in use the protective cap should be replaced.

When using an optical input or output jack, always use a

high-quality optical fiber cable.

Important Note: We strongly recommend that before you

connect any loudspeakers to your amplifiers, you complete

all needed connections and set up procedures to your GTP-

880 as outlined below. This will reduce the chance that a

miss connection or other error will produce audio output

that might damage your speakers or other components.

Caution: Before you plug the power cord into an AC wall outlet, con-

firm that all connections to the GTP-880 have been made correctly.

15ADCOM GTP-880 Owner’s Manual |

17ADCOM GTP-880 Owner’s Manual |

External Amplifier

Important Note: Before attempting to plug any jacks into

any power amplifier verify that the power amplifier is

turned off and/or disconnected from the AC mains. Failure

to do so can potentially result in severe damage to your

amplifier and loudspeakers.

Use the audio jacks labeled main audio outputs to connect

the GTP-880 to an external power amplifier such as the

ADCOM 7807 power amplifier. The GTP-880 can output up

to 7.1 channels of sound (seven satellite and one subwoofer

channel) depending on source components and material.

DVD Player

Composite: Connect the composite video output from the

DVD player to the DVD video input jack on the rear of the

GTP-880 using an RCA-type video cable.

S-video: If there is an s-video output on the DVD player,

and you have an s-video input on your TV or monitor, con-

nect it to the s-video DVD input on the rear of the GTP-880

using an s-video cable. S-video delivers a better picture

than composite connections and should be used whenever

possible unless you can use component connections, which

deliver better video than s-video.

The output jacks supplied by the GTP-880 are:

left front, center, right front, left surround, right

surround, left surround back, right surround back,

and subwoofer.

Be sure to verify that the correct outputs are connected to

the appropriate input jacks (left front to left front, right

surround back to right surround back, etc..)

When a powered subwoofer is used, connect the subwoof-

er output jack to the Line Input jack on your subwoofer

and follow any specific connection and/or configuration

instructions supplied with the subwoofer. If your sub-

woofer is a passive speaker, connect the subwoofer output

jack on the GTP-880 to the input of the amplifier used to

power the subwoofer, and then connect the subwoofer

speaker itself to the amplifier.

Component: If the DVD player has component video out-

puts, connect them to the DVD component video input jacks

on the rear of the GTP-880 using an appropriate cable set.

Note: OSD messages do not appear on component video.

Analog Audio: Connect the L and R channel outputs on the DVD

player to the DVD in audio jacks on the rear of the GTP-880.

Digital Audio: Connect one of the digital output jacks on

the DVD player to one of the coaxial (coax 1-3) or optical

(opt 1-3) input jacks on the rear of the GTP-880, depending

on the type of connector used by the DVD player. The fac-

tory preset for DVD is coax 1. Later, you can configure the

GTP-880 to use the specific input that you have chosen.

Use a GFA-7807 Power Amplifier (pictured above) or the GFA-7607 for seven channel

surround sound setups. Five channel versions of these amplifiers are also available.

| ADCOM GTP-880 Owner’s Manual16

Multi Channel Audio: If your DVD player supplies a mul-

tichannel audio output (for DVD Audio or SACD playback),

connect the six outputs (special cable sets for this are

available from numerous sources) from your player to the

six input jacks labeled DVD Audio input on the rear panel

of the GTP-880. Be sure match the connections—left to

left, right surround to right surround, and so on.

If you are connecting a DVD-Audio or SACD player to the

GTP-880 using these jacks, you will need to consider the

setting for the analog bass management switch on the

GTP-880’s rear panel (see previous section for details).

CD Player

Analog: Connect the L and R channel outputs on the CD

player to the CD IN jacks on the GTP-880.

Digital: If your CD player has a digital output jack, connect

it to one of the coaxial (coax 1-3) or optical (opt 1-3) input

jacks on the GTP-880, depending on the type of connector

used by the CD player. Later, you will configure the GTP-

880 to use the specific input that you have chosen.

Audio Recorder

A recording device such as a cassette deck, MD recorder,

DAT deck or CD recorder can be connected to the GTP-880

using either or both of the following methods.

Analog: Connect the L and R audio outputs on the recorder

(usually marked “play”) to the tape in jacks on the rear of

the GTP-880 and connect the L and R audio inputs (usually

marked “rec”) to the tape out jacks of the GTP-880.

Digital: If your recorder has a digital output jack, connect

it to one of the coaxial (coax 1-3) or optical (opt 1-3) input

jacks on the GTP-880, depending on the type of connector

used by the device. Later, you will configure the GTP-880

to use the specific input that you have chosen.

as well as the s-video main out and VCR out jacks.

Any signal that appears at the s-video input jacks (DVD,

VCR, video 1, 2 or 3) is automatically sent to the s-video

out and VCR out jacks, as well as the composite video out

and VCR out jacks.

Any signal that appears at the component video (DVD,

video 1, or video 2) input jacks is automatically sent to the

monitor component output connection only and only when

that source is selected.

Note: To provide the greatest signal flexibility, be sure

to connect all available types of inputs and outputs from

your video devices. For example, if only the composite

video output (yellow RCA jack) connection is made to your

display device, component sources will not be available,

even if they are connected to the GTP-880.

Video Recorder

A video recording device such as a VCR, PVR (such as a

TiVo®, Replay®, UltimateTV®, DishPlayer® or similar

device) or DVD recorder can be connected to the GTP-880

using the following methods.

Composite: Connect the composite video output from the

recording device to the VCR in composite video jack on

the rear of the GTP-880. Connect the recording device’s

composite video input to the VCR out composite video jack

of the GTP-880 using an RCA-type video cable.

S-video: If there is an s-video output on the recording de-

vice, connect it to the s-video VCR in input on the rear of

the GTP-880 and connect the s-video input to the s-video

VCR out using an s-video cable. S-video delivers a better

picture than composite connections and should be used

whenever possible unless you can use component connec-

tions, which deliver better video than s-video.

If your recorder has a digital input jack, connect it to

either the coaxial or optical output jack on the GTP-880.

The signal from the selected digital input source of the

GTP-880 will be sent to the recorder.

Video Components

Before making connections to any video devices, it will

help to understand how the GTP-880 routes the video

portion of the signal.

Any signal that appears at one of the composite video

input jacks (DVD, VCR, video 1, 2 or 3) is automatically

sent to the composite video main out and VCR out jacks,

Component: If the recording device has component video

outputs, connect them to one of the component video

input jacks (DVD, video 1, video 2) on the rear of the GTP-

880 using an appropriate cable set.

Analog Audio: Connect the L and R audio outputs on the

recorder to the VCR in audio jacks on the rear of the GTP-

880 and connect the L and R inputs of the recorder to the

VCR out audio jacks on the GTP-880.

Digital Audio

If your recording device also has a digital audio output

jack, connect it to one of the coaxial (coax 1-3) or optical

17ADCOM GTP-880 Owner’s Manual |

19ADCOM GTP-880 Owner’s Manual |

(opt 1-3) input jacks on the rear of the GTP-880, depend-

ing on the type of connector used by the device. Later,

you will configure the GTP-880 to use the specific input

that you have chosen.

Video Display

A video display device such as a television monitor, fixed-

pixel device (plasma or LCD) or video projector can be

connected to the GTP-880 using the following methods.

If your recording device also has a digital input jack, con-

nect it to either the coaxial or optical output jack on the

rear of the GTP-880, depending on the type of connector

used by the device. The signal from the selected input

source of the GTP-880 will be sent to the recorder.

Satellite Tuner or Television

Composite: Connect the composite video output from

the satellite tuner or television to one of the video input

jacks (video 1, 2 or 3) on the rear of the GTP-880 using an

RCA-type video cable.

S-video: If there is an s-video output on the satellite tuner

or television, connect it to one of the s-video inputs (video

1, 2 or 3) on the rear of the GTP-880 using an s-video

cable. S-video delivers a better picture than composite

connections and should be used whenever possible unless

you can use component connections, which deliver better

video than s-video.

Component: If the satellite tuner or television has com-

ponent video outputs, connect them to one of the com-

ponent video input jacks (DVD, video 1 or video 2) on the

rear of the GTP-880 using an appropriate cable set.

Analog Audio: Connect the L and R channel outputs on the

satellite tuner or television to the set of audio input jacks

(video 1, 2 or 3) directly under the video jack used on the

rear of the GTP-880.

Composite: Connect the composite video input from the

display to the composite video main out jack on the rear

of the GTP-880 using an RCA-type video cable.

S-video: If there is an s-video input on the display, con-

nect it to the s-video main out jack on the rear of the

GTP-880 using an s-video cable. S-video delivers a better

picture than composite connections and should be used

whenever possible unless you can use component connec-

tions, which deliver better video than s-video.

Component: If the display has component video inputs,

connect them to the monitor component output jacks on

the rear of the GTP-880 using an appropriate cable set.

Note: Since the GTP-880 converts composite video to

s-video and vice versa, you need only make one of those two

types of connections between the GTP-880 and your video

display. However, when component video connections are

used it is still necessary to make either the composite or s-

video connections so that you are able to view the on-screen

menus and displays which do not appear on the monitor

component output. The GTP-880 does not convert from

either composite or s-video to component or vice versa.

Digital Audio: If your satellite tuner or television has a digi-

tal output jack, connect it to one of the coaxial (coax 1-3)

or optical (opt 1-3) input jacks on the rear of the GTP-880,

depending on the type of connector used by the device.

Later, you will configure the GTP-880 to use the specific

input that you have chosen.

| ADCOM GTP-880 Owner’s Manual18

Connection Diagram: GTP-880 to a GFA-7807 Amplifier

GFA-7807 Power Amplifier

19ADCOM GTP-880 Owner’s Manual |

21ADCOM GTP-880 Owner’s Manual |

Connection Diagram: GDV-850 DVD Player to the GTP-880 Direct Analog Input (DVD Audio)

GDV-850 DVD Player

GTP-880 Tuner Preamp

| ADCOM GTP-880 Owner’s Manual20

Connection Diagram: GDV-850 DVD Player to the GTP-880 Digital & Analog Stereo Input

GDV-850 DVD Player

GTP-880 Tuner Preamp

21ADCOM GTP-880 Owner’s Manual |

23ADCOM GTP-880 Owner’s Manual |

Connection Diagram: Analog Source (CD, VCR, etc.) to the GTP-880 Analog Input

Analog Source

GTP-880 Tuner Preamp

| ADCOM GTP-880 Owner’s Manual22

Connection Diagram: GTP-880 Video Outputs

23ADCOM GTP-880 Owner’s Manual |

25ADCOM GTP-880 Owner’s Manual |

2.1 GRC-810 Remote Control

[32]

Main Button

[33]

Source Selection Buttons

[34]

Power Button

39 40

42 43

[35]

Mute Button

[36]

Volume Up & Down Buttons

[37]

Tape & Aux Buttons

[38]

Dynamic Range Button

[39]

Play Button

[40]

Main Menu Button

[41]

Navigation & Select Buttons

[42]

Pause Button

[43]

Stop Button

[44]

Direct Access Keypad

[45]

Surround Mode Buttons

[46]

Direct Analog Input Buttons

[47]

Random & Repeat Buttons

[48]

Ch. Trim & FM/AM Button

[49]

Ch. Cal & Memory Button

[50]

Th-Eq & P.Scan Button

[51]

Tone & Tune Down Button

[52]

Bypass & Tune Up Button

[53]

Macro Buttons

[54]

Room 2 Button

54 55 56

[55]

Backlight Button

[56]

Dim Button

| ADCOM GTP-880 Owner’s Manual24

2.2 Overview of the GRC-810

The GRC-810 remote control is a learning remote con-

trol that is capable of saving commands for all remote

controls in your home theater system. In this way, you

may eliminate the confusion of using multiple remotes.

Although such power comes with some added complexity,

the complexity is minimal and with some repetition will

become second nature.

The single most important aspect to master about the GRC-

810 remote control is the function of the source selection

buttons at the top of the remote. Each of these buttons

cause two things to happen when used. First, they select

the corresponding input on the GTP-880. Second, these

keys remap all of the other buttons on the remote control.

You can think of each of these buttons as having a page

of commands associated with it. Some buttons, such as

volume up and down, are pre programmed to operate the

GTP-880 for each source. These buttons can be “written

over” if you like, but default to GTP-880 operations for

your convenience.

Most of the GTP-880 remote commands are saved under

the main remote page. Whenever you desire to control

the GTP-880 via remote, you must first ensure the main

page is active. As an example, press main on the remote

control. Now, press the dim button. If your GTP-880 is on,

the brightness of the front panel display changes. Notice

also that the main button on your remote illuminates.

This serves as a reminder that the main remote page is

currently active. Now press the CD button and then the

play button. Notice now that the CD source button lights.

The CD remote page is now active. If you have an ADCOM

GCD-750 player, this command will cause an idle CD to

play. Now, press the dim button again. You should note

that CD button does not light. The dim command is not

pre programmed in the CD remote page. If your GTP-880

is on you will also notice the display does not respond to

this command. Press the main button again to reenter the

main remote page. The dim button will now again change

the GTP-880 display.

The button description that follows distinguishes the func-

tion of each button dependent on the page the remote is

in. The remote is shipped from the factory with ADCOM

commands saved under the main, tuner, DVD, and CD

pages, and with important GTP-880 functions such as

volume saved under each page.

The ADCOM universal remote controller is preset to

operate all GTP-880 functions (main and tuner device

mode) and most ADCOM DVD and CD player functions.

Alkaline batteries are recommended for maximum operat-

ing life. Four AAA (R 03) batteries should be fitted in the

battery compartment at the rear of the remote control.

When replacing batteries, check that they have been put

in correctly, as indicated on the base of the battery

compartment.

2.3 Remote Features [32]

Main Button

In all modes, button provides access and control to the

GTP-880.

[33]

Source Selection Buttons

These buttons switch inputs on the GTP-880, making the

selected source active. They also can change the func-

tions of other buttons on the remote controller.

[34]

Power Button

In all modes, this is pre programmed to toggle on/standby

the GTP-880 power.

[35]

Mute Button

In all modes, this button is pre programmed to mute

outputs of device. Any adjustment of the volume control

while in the mute mode will release the muting.

[36]

Volume Up & Down Buttons

In all modes, these buttons change the master volume

setting of the GTP-880. In all modes except main, they

can be reprogrammed with new commands.

[37]

Tape & Aux Buttons

In main mode, these are similar to the source selectors

described above but they switch only GTP-880 inputs.

They do not automatically change the functions of other

remote buttons.

[38]

Dynamic Range Button

The d. range button, which can be used only in combina-

tion with a Dolby Digital source, incrementally reduces

the audio track’s dynamic range in four steps to allow for

comfortable listening under a variety of conditions. Adjust

using the and buttons or the d.range button.

[39]

Play Button

In CD and DVD mode, it is pre programmed for play with

an ADCOM GCD-750 and GDV-850.

25ADCOM GTP-880 Owner’s Manual |

27ADCOM GTP-880 Owner’s Manual |

[40]

Main Menu Button

In main mode, this is pre programmed to enter on screen

menu of the GTP-880.

[41]

Navigation & Select Buttons

The arrow buttons allow navigation throughout the GTP-

880 OSD (ON Screen Display) menus (as well as the menus

of other devices, once the commands are learned).

Select button: In main mode, this is pre programmed to

enter a selection chosen via the menu system.

[42]

Pause Button

In CD and DVD mode, it is pre programmed for pause with

an ADCOM GCD-750 and GDV-850.

[43]

Stop Button

In CD and DVD mode, it is pre programmed for stop with

an ADCOM GCD-750 and GDV-850.

[44]

Direct Access Keypad

In CD mode, buttons are pre programmed as track access

commands for the ADCOM CD player. Buttons “1” through

“10,” and “+10”

In tuner mode these buttons allow direct access to preset

stations in memory.

In DVD mode, buttons work in conjunction with direct

chapter navigation. Use the go to/enter to jump to a

specific chapter or scene.

[45]

Surround Mode Buttons

In main mode, these are pre programmed to cycle through

the available surround modes of the GTP-880.

[46]

Direct Analog Input Buttons

These buttons switch the analog inputs to one of the ana-

log direct inputs. DVD-Audio, SACD or a 2 channel bypass.

[47]

Random & Repeat Buttons

In CD mode, these buttons are pre programmed as

“random” and “repeat” commands for ADCOM CD player.

[48]

Ch. Trim & FM/AM Button

In main mode, this button cycles through channels adjust-

ing trim in 1dB steps, -15dB to +10dB. Use the left and

right arrows to make adjustments. In tuner mode this but-

ton switches the tuner between FM and AM frequencies.

[49]

Ch. Cal & Memory Button

In main mode, this button cycles through channels

adjusting level in 1dB steps, -15dB to +10dB. Use the left

and right arrows to make adjustments. In tuner mode this

button is used to program radio stations in memory.

[50]

Th-Eq & P.Scan Button

In main mode this button turns theater compensation pro-

cessing on and off.

In tuner mode this button scans the AM or FM stations

preset in the tuner’s memory.

[51]

Tone & Tune Down Button

In main mode this button cycles between the treble and

bass level control, use the left and right buttons to make

adjustments.

In tuner mode this button adjusts the GTP-880 tuner’s

frequency down.

[52]

Bypass & Tune Up Button

In main mode this button turns tone bypass on and off. In

tuner mode this button adjusts the GTP-880 tuner’s

frequency up.

[53]

Macro Buttons

These buttons are programmable for use with any source.

[54]

Room 2 Button

In any mode, this button is used turn room 2 on and off,

as well as adjust room settings using the buttons.

[55]

Backlight Button

No programming capabilities. Button backlights all keys

for eight (8) seconds when pressed.

[56]

Dim Button

In main mode, button is pre programmed to dim

GTP-880’s information display.

2.4 Remote Function Table

The tables on the following pages supplement the infor-

mation you’ve just read. Use it to quickly review button

functions. The controller’s capabilities are extensive and

may be somewhat intimidating at first. However, you

will soon find that its logical button arrangement and

programming capabilities will greatly increase your enjoy-

ment as you discover the ease with which you can operate

your entire system from just one remote! Look down the

left-hand column until you see the button you want to

learn about. Then look under main to see if it is pre pro-

grammed for a GTP-880 function, under CD to see what

CD commands are pre programmed, and under tuner to

see all pre programmed tuning functions.

| ADCOM GTP-880 Owner’s Manual26

Custom Code: 1AE5h Code Type: NEC Carrier Frequency: 38kHz

Buttons

main DVD VCR CD vid 1 vid 2 vid 3 tuner power tape aux mute d.range Vol Vol

select play menu pause stop 1 2 3 4 5 6 7 8 9 0 +10 enter

7.1m2 Dolby DTS stereo DVD-A SACD 2-ch random repeat ch. trim / AM/FM ch. cal / mem th-eq / p.scan tone / tune bypass / tune m1 m2 m3 m4 rm. 2 backlight dim

Function: Main

selects 880 codes selects 880 dvd input selects 880 vcr input selects 880 cd input selects 880 video 1 input selects 880 video 2 input selects 880 video 3 input selects 880 tuner toggles 880 power on/off selects 880 tape input selects 880 aux input toggles 880 audio mute toggles 880 night mode 880 master volume up 880 master volumer dn 880 navigation up 880 navigation down 880 navigation right 880 navigation left 880 select/enter dvd - play calls up 880 osd menu dvd - pause dvd - stop 1 2 3 4 5 6 7 8 9 0 +10 direct tune entry

7.1m2 on/off toggles dolby modes toggles dts modes toggles stereo modes toggles dvd-a direct toggles sacd direct toggles 2 channel direct

programmable

dvd - repeat channel bal. trim adjust noise gen./trim adjust toggles comp on/off toggles treble/bass adj. toggles tone bypass

programmable programmable programmable programmable

displays room 2 setup backlight toggles vfd brightness

Code

195 135 134 136 131 132 133 137 128 138 139 130 223 213 209 64 65 67 66 3 113 129 118 50 144 145 146 147 148 149 150 151 152 154 153 210 84 87 86 85 71 70 68

122 199 80 222 207 77

203

202

Function: DVD

selects 880 codes selects 880 dvd input selects 880 vcr input selects 880 cd input selects 880 video 1 input selects 880 video 2 input selects 880 video 3 input selects 880 tuner toggles dvd power on/off selects 880 tape input selects 880 aux input toggles dvd audio mute toggles 880 night mode 880 master volume up 880 master volumer dn dvd navigation up dvd navigation downdvd navigation right dvd navigation left dvd select/enter dvd - play dvd menu dvd - pause/step dvd - stop 1 2 3 4 5 6 7 8 9 0 +10 dvd go-to

programmable programmable programmable programmable programmable programmable programmable programmable

dvd - repeat (1/all)

programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable

backlight

programmable

Code

195 135 134 136 131 132 133 137 101 138 139 121 223 213 209 100 61 104 60 113 113 99 49 50 36 37 127 39 40 41 42 43 44 35 45 116

122

27ADCOM GTP-880 Owner’s Manual |

29ADCOM GTP-880 Owner’s Manual |

Custom Code: 1AE5h Code Type: NEC Carrier Frequency: 38kHz

Buttons

main DVD VCR CD vid 1 vid 2 vid 3 tuner power tape aux mute d.range Vol Vol

select play menu pause stop 1 2 3 4 5 6 7 8 9 0 +10 enter

7.1m2 Dolby DTS stereo DVD-A SACD 2-ch random repeat ch. trim / AM/FM ch. cal / mem th-eq / p.scan tone / tune bypass / tune m1 m2 m3 m4 rm. 2 backlight dim

Function: CD

programmable programmable

skip ahead skip back

programmable

play

programmable

pause stop track 1 track 2 track 3 track 4 track 5 track 6 track 7 track 8 track 9 track 10 plus 10

programmable programmable programmable programmable programmable programmable programmable programmable

random repeat

programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable

backlight

programmable

Code

195 135 134 136 131 132 133 137 6 138 139 130 223 213 209

0 1

14 4 16 17 18 19 20 21 22 23 24 26 25

78 73

Function: Tuner

programmable programmable programmable programmable programmable programmable programmable programmable programmable

1 2 3 4 5 6 7 8 9 0 +10 direct tune entry

programmable programmable programmable programmable programmable programmable programmable programmable programmable

select tuner & toggle am/fm tuner memory set selects presets/tune tuner down tuner up rds pty display sleep

programmable

backlight

programmable

Code

195 135 134 136 131 132 133 137 128 138 139 130 223 213 209

144 145 146 147 148 149 150 151 152 154 153 210

143 11 211 141 140 2 69 196 198

| ADCOM GTP-880 Owner’s Manual28

Custom Code: 1AE5h Code Type: NEC Carrier Frequency: 38kHz

Buttons

main DVD VCR CD vid 1 vid 2 vid 3 tuner power tape aux mute d.range Vol Vol

select play menu pause stop 1 2 3 4 5 6 7 8 9 0 +10 enter

7.1m2 Dolby DTS stereo DVD-A SACD 2-ch random repeat ch. trim / AM/FM ch. cal / mem th-eq / p.scan tone / tune bypass / tune m1 m2 m3 m4 rm. 2 backlight dim

Function: VCR

programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable programmable

backlight

programmable

Code

195 135 134 136 131 132 133 137 128 138 139 130 223 213 209

Function: Video 1

backlight

programmable

Code

195 135 134 136 131 132 133 137 128 138 139 130 223 213 209

29ADCOM GTP-880 Owner’s Manual |

31ADCOM GTP-880 Owner’s Manual |

Custom Code: 1AE5h Code Type: NEC Carrier Frequency: 38kHz

Buttons

main DVD VCR CD vid 1 vid 2 vid 3 tuner power tape aux mute d.range Vol Vol

select play menu pause stop 1 2 3 4 5 6 7 8 9 0 +10 enter

7.1m2 Dolby DTS stereo DVD-A SACD 2-ch random repeat ch. trim / AM/FM ch. cal / mem th-eq / p.scan tone / tune bypass / tune m1 m2 m3 m4 rm. 2 backlight dim

Function: Video 2

backlight

programmable

Code

195 135 134 136 131 132 133 137 128 138 139 130 223 213 209

Vunction: Video 3

backlight

programmable

Code

195 135 134 136 131 132 133 137 128 138 139 130 223 213 209

| ADCOM GTP-880 Owner’s Manual30

Buttons Function: Notes Data Code

Macro 1 Function: Notes

Macro 2 Function: Notes

Macro 3 Function: Notes

Macro 4 Function: Notes

31ADCOM GTP-880 Owner’s Manual |

33ADCOM GTP-880 Owner’s Manual |

2.5 Programming the GRC-810 Remote

As you’ve already seen, the GRC-810 is pre programmed

to control ADCOM’s GTP-880 tuner preamp and the GCD-

750 CD and GDV-850 DVD players. In addition, it has seven

“component memory banks” available so you can program

the remote to learn commands for your DVD player, satel-

lite box, laser disc player, VCR, etc. This lets you use one

remote controller for your entire system.

Using Pre Programmed Commands

Using the remote controller’s pre programmed commands

is simple. For most GTP-880 functions (volume up/down,

changing surround modes, etc.), follow these easy steps.

1. Press the main source selector button. This tells the remote

that you want to use GTP-880 pre programmed commands.

The main button will flash red to tell you it understands.

2. Press the appropriate function button (volume up, volume

down, etc.) If you’ve selected a button that actually triggers

a GTP-880 command, the main button will again flash red

to confirm your choice. If the main button does not flash,

you’ve selected a function button that isn’t pre programmed.

For tuner functions (changing stations, etc.):

1. Press the tuner source selector button. It will flash red.

2. Press the tuning up (or tuning down) function button

to change stations. The tuner source selector will flash

red to confirm that the function button you’ve selected

actually triggers a command. (Again, use the table to see

which buttons are pre programmed.) Press the CD source

selector first to access pre programmed commands for

ADCOM CD players.

the appropriate source selector button. For example, if

you’re teaching your ADCOM remote commands for your

video 1 source, press the vid 1 source selector first. You

can “teach” your remote new commands for any function

button (except backlight) after you’ve selected DVD, VCR,

CD, vid 1, vid 2, vid 3 and tuner.

1. Place the source component’s remote “head to head”

with the ADCOM remote. They should be in line with each

other about 2 to 3 inches apart.

2. Press the ADCOM remote’s appropriate source selector

and select buttons simultaneously. Hold both buttons until

the status LED turns orange and the source selector but-

ton glows red. Both indicators should remain lit.

3. Decide which function button on the ADCOM remote

you want to learn a new command. Press it. The orange

status LED will begin to flash and the source selector LED

will go out.

4. Find the corresponding button on the source compo-

nent’s remote. Press and hold it until the status LED on

the ADCOM remote flashes green once and remains green

until the button on the source remote is released. Once

the button on the source remote is released, the status

LED will start flashing orange again.

5. Verify that the ADCOM remote has learned the new

command by pressing and holding the same button on the

source remote. The ADCOM remote’s status LED should

flash green twice and then go back to steady orange. This

indicates successful programming. Release the button on

the source remote.

Note: You can program new commands over the pre pro-

grammed commands in tuner and CD if you wish. However,

you cannot program any buttons, even those unpro-

grammed with GTP-880 command codes, while you’re in

main mode. This safety feature assures you that you will

always be able to fully enjoy the GTP-880’s capabilities.

Programming Your Own Commands

You can supplement pre programmed commands with com-

mands to operate other components. Before you begin to

follow these steps, note the status LED located at the top

left corner just above the remote’s button panel: It will

flash red, orange, or green to signal particular functions as

you enter new commands into your ADCOM remote.

Begin by deciding which source component’s commands

you will be transferring to the ADCOM remote. Then press

| ADCOM GTP-880 Owner’s Manual32

Repeat steps 3 through 5 for any other commands you want

to teach your ADCOM remote for that source component.

Save the commands you’ve just programmed into the

ADCOM remote by pressing and holding the appropriate

source selector and select buttons simultaneously. Hold

until the status LED and source selector LED flash twice

and then go out. Repeat these steps for any other source

commands you wish to program.

Deleting Individual Commands

1. Press the ADCOM remote’s source selector and select

buttons simultaneously and hold until the orange status

LED and the source selector button glow steadily.

2. Press the function button you wish to clear. The status

LED will flash continuously.

3. Press the backlight button. The status LED will then

flash green twice and then revert to steady orange. The

source selector button will continue to glow.

Repeat steps 2 and 3 for any other command you wish to

delete for the same source component.

4. Exit “delete mode” by pressing and holding the source

selector and select buttons simultaneously. The orange

status LED and the source selector button will turn off.

Deleting all the Programmed Commands for one Source Component

1. Press the ADCOM remote’s source selector and select

buttons simultaneously and hold until the orange status

LED and the source selector button turn on and remain lit.

2. Press and hold down the backlight button. The red sta-

tus LED and the device button will flash five times, the

status LED will then flash green twice and turn to a con-

stant orange, indicating that all the learned information

for the device mode selected has been erased.

3. To exit this feature, press and hold the ADCOM remote’s

source selector and select buttons simultaneously. The

orange status LED and the source selector button will

flash twice and then turn off.

Deleting all the Commands for Every Source Component

store and transmit either of two complete macros, depend-

ing on which source selector is active when you push it.

For macro programming purposes, think of the source

selectors as being in two groups: main, DVD, VCR, and CD

in group 1; vid 1, vid 2, vid 3, and tuner in group 2. When

you program a “group 1” macro, you will start by push-

ing the main source selector. After you’ve completed and

memorized that macro command series, you can

initiate it whenever you’re in main, DVD, VCR or CD

modes. Similarly, you will program “group 2” macros by

pushing vid 1 first and can use them whenever the video

1, video 2, video 3, or tuner inputs are active.

1. Press either the group 1 or group 2 source selector

button (main or vid 1 respectively) and the mute button

simultaneously. Hold both buttons until the red status LED

and the input selector button remain lighted.

2. Press the macro initiator button (m1, m2, m3 or m4)

you wish to program.

3. Select and press up to ten buttons you wish to store

in the macro. Both source selector and function but-

tons count as individual commands. Remember that each

macro can hold only up to ten individual commands.

4. Press the random button to save the macro. The red

status LED and input selector button will blink twice to

confirm programming and then turn off.

Note: This procedure erases every programmed command

accessed under the selected DVD, VCR, CD, vid 1, vid

2, vid 3, and tuner input selectors. Make sure you really

want to do this before following the step below.

Press and hold the video two input selector and the back-

light button simultaneously. The red status LED will flash

twelve times. The status LED will then flash green once,

followed by a single orange pulse.

All LEDs will then turn off, indicating that every learned

command in the ADCOM remote has been erased.

2.6 Programming Macro Buttons

“Macro” commands are simply a series of individual

commands initiated by pushing just one button.

The ADCOM remote can learn up to 10 individual

commands and store them as a single macro.

There are four “macro initiator” buttons on the ADCOM

remote: m1, m2, m3, and m4. Each “macro initiator” can

• To add a power (on/off) command to the macro, use the

mute button in place of the power button.

• The random/tone buttons cannot be used in a

macro sequence.

Deleting Macro Initiator Buttons:

1. Press either the group 1 or group 2 source selector

button (main or vid 1 respectively) and the mute button

simultaneously. Hold both buttons until the red status LED

and the input selector button remain lighted.

2. Press the macro initiator button (m1, m2, m3 or m4)

you wish to delete.

3. Press the random button. The red status LED and input

selector button will blink twice to confirm deletion of

the macro.

33ADCOM GTP-880 Owner’s Manual |

35ADCOM GTP-880 Owner’s Manual |

2.7 Function and Data List for GTP-880 (Discrete) Remote Control via IR

Custom Code: 1AE8h Code Type: NEC2 Carrier Frequency: 38kHz

Command

pwr on pwr off dvd-a on dvd-a off sacd on sacd off 2 channel o n 2 channel o f f otp1 opt2 opt3 coax1 coax2 coax3 fm-mono fm-stereo bypass-on bypass-off mute-on mute-off room2-on room2-off mute2-on mute2-off room2 vol + room2 vol t.comp-on t.comp-off plII-c plII-m dolby pl neo:6c neo:6m 5ch stereo 7ch stereo dolby d dolby ex dts dts-es am fm preset1 preset2 preset3 preset4 preset5 preset6 preset7 preset8

GTP-880 Function

turns power full on turns power off (standby) direct selection of dvd-a analog direct input direct de-selection of dvd-a analog direct input direct selection of sacd analog direct input direct de-selection of sacd analog direct input direct selection of stereo bypass mode direct de-selection of stereo bypass mode direct select digital input opt 1 direct select digital input opt 2 direct select digital input opt 3 direct select digital input coax 1 direct select digital input coax 2 direct select digital input coax 3 direct select fm mode monophonic direct select fm mode stereophonic turns on tone bypass function turns off tone bypass function mutes main audio unmutes main audio direct select room 2 audio on direct select room 2 audio off mutes room 2 audio unmutes room 2 audio room 2 volume up room 2 volume down direct select theater compensation on direct select theater compensation off direct select pro logic II cinema direct select pro logic II music direct select pro logic emulation direct select dts neo:6 cinema direct select dts neo:6 music direct select 5 channel stereo direct select 7 channel stereo direct select dolby digital direct select dolby digital surround ex direct select dts direct select dts extended surround direct select tuner am frequency band direct select tuner fm frequency band direct select tuner preset 1 direct select tuner preset 2 direct select tuner preset 3 direct select tuner preset 4 direct select tuner preset 5 direct select tuner preset 6 direct select tuner preset 7 direct select tuner preset 8

IR: D7~D0

0101 0100 0101 0101 1100 1011 1101 0111 1001 0000 1001 1000 1001 0001 1100 1101 1001 0010 1001 0011 1101 0000 1101 0001 1101 0010 1101 0011 0001 0100 0001 0101 0001 0110 0001 0111 0101 0110 0101 0111 1100 1110 1100 1111 1101 0101 1101 0110 0101 0010 0101 0011 1000 1011 1100 1000 0101 1100 0101 1101 0000 1110 0101 1110 0101 1111 0100 1110 0100 1111 0000 1100 0000 1101 0000 1111 0100 1100 1100 1001 1100 1010 0001 1000 0001 1001 0001 1010 0001 1011 0101 1000 0101 1001 0101 1010 0101 1011

Hex

54h

55h CBh D7h 90h 98h 91h CDh 92h 93h D0h D1h D2h D3h 14h 15h 16h 17h 56h 57h CEh CFh D5h D6h 52h 53h 8Bh C8h 5Ch 5Dh 0Eh 5Eh 5Fh 4Eh 4Fh 0Ch 0Dh 0Fh 4Ch C9h CAh 18h 19h 1Ah 1Bh 58h 59h 5Ah 5Bh

Deci

85 203 215 144 152 145 205 146 147 208 209 210 211

87 206 207 213 214

83 139 200

76 201 202

Turn on

yes

yes yes yes yes yes yes yes yes yes yes

| ADCOM GTP-880 Owner’s Manual34

Custom Code: 1AE8h Code Type: NEC2 Carrier Frequency: 38kHz

Commandfront

distance + front distance center distance + center distance surr rear distance + surr rear distance surr back distance + surr back distance sub distance + sub distance distance unit center trim + center trim rear l trim + rear l trim rear r trim + rear r trim sub trim + sub trim back l trim + back l trim back r trim + back r trim d.range 0 d.range 25 d.range 50 d.range 75 d.range 100 room2 dvd room2 vcr room2 cd room2 video 1 room2 video 2 room2 video 3 room2 tuner room2 tape room2 aux

7.1m2 on

7.1m2 off bass + bass treble + treble tone reset stereo unused unused unused factory defaults

GTP-880 Function

increase distance to front speakers (affects delay delta) decrease distance to front speakers (affects delay delta) increase distance to center speakers (affects delay delta) decrease distance to center speakers (affects delay delta) increase distance to surround speakers (affects delay delta) decrease distance to surround speakers (affects delay delta) increase distance to surround speakers (affects delay delta) decrease distance to surround speakers (affects delay delta) increase distance to subwoofer (affects delay delta) increase distance to subwoofer (affects delay delta) toggles feet/meter adjust center channel level up adjust center channel level down adjust rear left channel level up adjust rear left channel level down adjust rear right channel level up adjust rear right channel level down adjust subwoofer channel level up adjust subwoofer channel level down adjust back left channel level up adjust back left channel level down adjust back right channel level up adjust back right channel level down direct select dynamic range no comp direct select dynamic rnage comp 25% direct select dynamic range comp 50% direct select dynamic range comp 75% direct select dynamic range comp 100% direct select dvd audio for room 2 direct select vcr audio for room 2 direct select cd audio for room 2 direct select video 1 audio for room 2 direct select video 2 audio for room 2 direct select video 3 audio for room 2 direct select tuner audio for room 2 direct select tape audio for room 2 direct select aux audio for room 2 direct select 7.1m2 processing on direct select 7.1m2 processing off adjust bass up adjust bass down adjust treble up adjust treble down resets bass & treble to 0 direct select stereo mode unused unused unused resets all to factory defaults settings

IR: D7~D0

0000 0000 0000 0001 0000 0010 0000 0011 0100 0000 0100 0001 1101 1010 1101 1011 1101 1000 1101 1001 0100 0101 0000 1000 0000 1001 0000 1010 0000 1011 0100 1000 0100 1001 0100 1010 0100 1011 0001 1100 0001 1101 0001 1110 0001 1111 1101 0100 0100 0111 0100 0110 0100 0011 0100 0010 0001 0001 0001 0000 0001 0011 1000 1100 1000 1101 1000 1110 0101 0000 0101 0001 0001 0010 1000 1111 1100 1100 1000 0111 1100 0100 1100 0101 1100 0110 1100 0111 1001 0100 1001 0101 1001 0110 1001 0111 1000 0110

Hex

00h 01h 02h 03h 40h 41h DAh DBh D8h D9h 45h 08h 09h 0Ah 0Bh 48h 49h 4Ah 4Bh 1Ch 1Dh 1Eh 1Fh D4h 47h 46h 43h 42h 11h 10h 13h 8Ch 8Dh 8Eh 50h 51h 12h 8Fh CCh 87h C4h C5h C6h C7h 94h 95h 96h 97h 86h

Turn onDeci

0 1 2

3 64 65

218 219 216 217

9 10 11 72 73 74 75 28 29 30 31

212

71 70 67 66 17 16 19

140 141 142

80 81 18

143 204 135 196 197 198 199 148 149 150 151 134

35ADCOM GTP-880 Owner’s Manual |

37ADCOM GTP-880 Owner’s Manual |

3.1 Setup Overview

At this point you should have made all the necessary

physical connections between the GTP-880 and your

source equipment, ampli ers and speakers. All that

remains is to properly con gure the system to re ect your

speci c equipment and room characteristics.

To turn the GTP-880 on:

1. Plug the cord into an AC wall outlet or UL approved

power strip or surge protection device.

Make certain that the AC power cord supplied with the

GTP-880 is  rmly inserted into the socket on the unit’s

rear panel.

2. Press the rear panel power switch to the on position to

set the GTP-880 to standby mode.

The standby indicator on the front panel will light up.

3. Press the front panel standby power button to turn on

the GTP-880 or press the power button on the remote

control.

The front panel display will light up and the standby

indicator will turn red.

3.2 On Screen Display

Setup of the GTP-880 is performed by using the remote

control. Information is shown on the front panel display, or

the on screen display (OSD). All selections are made using

a combination of the following buttons:

To use the GTP-880 menu system:

1. Press the main menu button to display the main menu.

The main menu appears on the OSD:

2. Press or followed by the select button to select a

setup menu. Your selection appears on the OSD:

3. Press or to select an item to adjust. Your selection

appears on the front panel display and the OSD:

4. Press or to select or adjust a setting.

Once you have made your selections, you can use the

and to return to the main menu and/or exit the menu

system. Alternatively, pressing the menu button once will

return you to the main menu. Pressing the menu button

a second time will exit the menu system. Note that the

menus will remain visible on the front panel and OSD until

you exit the menu system.

Important Note: When viewing static images such as on

screen menus or video game images using a CRT-based

projector, plasma display or direct-view CRT monitor or

television, there is a risk of permanently “burning in”

the image. Do not leave these images on for an extended

period of time. This type of damage is not covered by the

ADCOM GTP-880 warranty.

3.3 Input Con guration

Before calibrating your GTP-880 and adjusting loudspeaker

setup and con guration, you should  rst set up the sources

connected to it. You will make your selections using the

input con guration menu, shown below.

| ADCOM GTP-880 Owner’s Manual36

To congure an input:

1. Press the menu button to enter the main menu. The

main menu appears on the front panel display and the

OSD. The cursor on the OSD should be pointing to the input

conguration menu and input cong appears on the front

panel display.

2. Press select to enter the input conguration menu. The

input conguration menu appears on the front panel display

and the OSD. The selected menu item should be source.

3. Use the and buttons to select which particular

Source you wish to congure. The Source choices appear

as follows as you scroll through them:

DVD, video1, video2, video3, VCR, tuner FM, tuner AM, CD,

TAPE, and AUX

You can scroll in either direction using the < and > buttons.

4. Press the button once to select the Input menu.

5. Use the and buttons to select an Input for that

source. The input choices appear as follows as you scroll

through them:

PLII-C, PLII-M, Dolby PL, 7 stereo, 5 stereo, stereo, NEO:

6-C, NEO:6-M, Dolby, Dolby EX, DTS, DTS-ES

You can scroll in either direction using the < and > buttons.

You should choose a surround mode to be the default for this

source. Remember that all available mode options can be

selected for a digital input source, but certain modes will

not be available through the analog input for that source.

Selecting the default mode will not exclude other modes

of surround decoding. In fact, certain digital signals (Dolby

Digital, DTS, some Dolby Digital EX, and others) contain a

special digital “ag” that tells the GTP-880 to switch to

that surround mode. When the GTP-880 receives one of

these bitstreams it will switch to that mode of operation.

Additionally, you can manually cycle through the available

modes while the source is playing to choose the one you

wish to use.

3.4 Speaker Conguration

You are now ready to congure the GTP-880 for your

particular loudspeaker system. Before proceeding please

read the following information carefully:

ANALOG, OPTICAL 1, OPTICAL 2, OPTICAL 3, COAXIAL 1,

COAXIAL 2, COAXIAL 3

You can scroll in either direction using the < and > buttons.

If you connected the source to the Analog inputs, select: analog.

If you connected the source to one of the optical digital

inputs, select the appropriate one by choosing: optical 1,

optical 2 or optical 3

If you connected the source to one of the coaxial digital

inputs, select the appropriate one by choosing: coaxial 1,

coaxial 2 or coaxial 3.

Note: Always connect and congure the digital input

source option if one is available from the specic compo-

nent, as this will provide maximum performance and best

sound quality.

Remember that you can always return to any menu to

change your selection, should that be required.

6. Press the button once to select the Mode menu.

This speaker setting is preferred if you are not using surround backs.

Speaker Placement

The best speaker placement for your particular room will

depend on its size, furnishings, seating arrangement, the

acoustical properties of the space, including wall type,

coverings, and various other factors.

7. Use the and buttons to select a Mode for that

source. The available surround modes appear as follows as

you scroll through them:

Due to the complex nature of these variables it is impos-

sible to recommend any one-size-ts-all placement. You

may well have to experiment with various placement

options to determine the best conguration for your

37ADCOM GTP-880 Owner’s Manual |

39ADCOM GTP-880 Owner’s Manual |

specic situation. Please note that, the conguration and

placement of your speakers is critical for creating the best

possible surround sound playback.

This is the preferred speaker setting if you are using surround backs.

To congure the GTP-880 for your speaker system:

1. Press the menu button to enter the main menu. The

main menu appears on the front panel display and the

OSD. The cursor on the OSD should be pointing to the input

conguration menu and input cong appears on the front

panel display.

2. Press the button once to select the speaker

conguration menu. The cursor on the OSD should be

pointing to the speaker conguration menu and speaker

cong appears on the front panel display.

3. Press select to enter the speaker conguration menu.

The speaker conguration menu appears on the front

panel display and the OSD. The selected menu item

should be front.

This speaker setting is preferred if you are using dipoles for your surround rears.

Note: If space permits, install surrounds

2-3 feet above viewers. This helps to minimize localization effects.

The rst three settings in the speaker conguration menu

deal with the type of speakers you are using in your sys-

tem. It is very important that you understand what is

meant by the large and small settings in this menu. They

do not refer to the physical size of the speakers, but to

their ability to handle very powerful deep bass. Most

loudspeaker systems on the market should be classied

as small, since they do not have the capability to handle

the often extraordinary amount of deep bass content lm

soundtracks can contain.

It is strongly recommended that you consult your loud-

speaker instruction manual regarding the capabilities of

your particular system with regard to low bass/low fre-

quency reproduction.

In any case you should consider using a subwoofer for any

system which you expect to effectively handle the low

frequency dynamics of modern motion picture soundtrack

sources such as DVD or HDTV feeds, and many other dis-

crete multichannel programming sources.

If you aren’t sure about your speaker’s real world capabili-

ties and you are using a subwoofer, choose small, since

| ADCOM GTP-880 Owner’s Manual38

this will insure that all the appropriate low frequency

information is directed to the subwoofer where it can be

most effectively handled.

4. Use the and buttons to cycle through the speaker

options for the front speaker. The following options are

available for each group of loudspeakers:

• For front you can select small or large

• For center you can select small, large or none

• For surr(ounds) you can select small, large or none

• For surr(ounds) rear you can select BS(LB), LB/RB or

none. LB/RB means you have a left back and right back

rear surround speaker setup for use in a 7.1 conguration.

BS(LB) means you have a single centrally placed back sur-

round speaker for use in a 6.1 (EX) type conguration.

• For subwoofer you can select on or off

5. Press the button when you have made a selection.

Repeat steps 4 and 5 until you have completed selecting

the speaker type for each loudspeaker in your system.

6. Press the button when you are nished to select

the front crossover (xover) menu. The front, center and

surround crossover menus are used to independently set

the internal high pass lter of the GTP-880’s crossover for

each of these three speaker groups.

7. Use the and buttons to adjust the front crossover.

The crossover settings appear as follows as you scroll

through them: 40Hz, 60Hz, 80Hz, 100Hz, 120Hz, 150Hz

9. Press the button to select the return to main

menu option.

10. Press select or menu to return to the main menu, or

press the menu button twice to exit the menu system.

3.5 Channel Conguration: Calibration

The next step is to adjust the output level of each channel

so that they are properly matched. This must be done

to insure a correct presentation of multichannel sound

sources. The adjustment must be as precise as possible,

and is almost impossible to accomplish by ear. Therefore,

we recommend that you use a sound level meter. This

device insures that all loudspeaker levels are precisely

matched and set accurately. (The Radio Shack analog sound

level meter is inexpensive and suitable for this task.)

Set the meter to slow response and “C” weighting. Set it

to the 70 or 80dB sensitivity scale. Position the meter at

the approximate center of your listening area, at average

ear height [approximately 40-46 inches (102-117 cm)] with

its microphone positioned vertically (pointing at the ceil-

ing). Don’t aim the microphone at the speakers, as this

will produce inaccurate results.

To proceed with the adjustments, you will access the

channel calibration menu shown below.

To set the channel levels for you system:

With no source playing, set the volume level of the

GTP-880, using the main volume control, to 0dB.

Note: None will appear for a large speaker setting.

You can scroll in either direction using the and buttons.

Consult the material that came with your loudspeakers to

determine the correct settings, if any are recommended.

If you are not sure about the frequency response of your

speakers, we recommend you set the crossover at 80Hz,

unless otherwise directed by the manufacturer. If you are

using very small satellite speakers you may need to set

the crossovers to 100 or even 120Hz. When correctly set,

you should hear a smooth transition of lower to upper bass

between the satellites and the subwoofer.

8. Press the button when you have made a selection.

Repeat steps 7 and 8 until you have completed the speaker

crossover settings for each group of speakers.

1. Press the menu button to enter the main menu. The

main menu appears on the front panel display and the

OSD. The cursor on the OSD should be pointing to the input

conguration menu and input cong appears on the front

panel display.

2. Press the button until the channel calibration menu is

selected. The cursor on the OSD should be pointing to the

channel calibration menu and channel calib appears on the

front panel display.

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3. Press select to enter the channel calibration menu.

The channel calibration menu appears on the front panel

display and the OSD. The selected menu item should be

left front.

A special test tone will be generated allowing you to

measure the output of the speaker that’s playing. Adjust

the master volume as needed.

4. Use the and buttons to adjust the speaker level.

You can adjust the selected channel level in 1dB steps

across a range of -15dB to +10dB.

5. Press the button when you have nished making the left

front level adjustment. Repeat steps 5 and 6 until you have

completed setting the level for each speaker in your system.

6. When you have nished adjusting the level for all the

speakers in your system, press the button to select the

return to main menu option.

7. Press the select or menu button to return to the main

menu, or press the menu button twice to exit. You can

also perform this calibration at any time by using the built

in test tone, by pressing the ch. cal button on the GTP-880

remote control.

the volume for a few seconds. The unit will then resume

cycling the test tone from speaker to speaker, until you

touch the ch. cal button again.

Note: Speakers that you selected “none” for in the

speaker cong menu will not appear.

3. Press the ch. cal button on the remote control again to

exit the test tone function.

Channel Trim

Channel trim allows you to ne tune the channel levels

to compensate for various soundtrack anomalies. For

example, you may play a movie and nd that the center

(dialogue) channel is weak, making the movie hard to

follow. Simply trimming the center channel up a dB

or two can x the problem. Or another lm may have

substantially more bass than normal and trimming the

subwoofer channel down a dB or two may help balance

the sound correctly.

This function can be accessed in two ways. You can press

the ch. trim button on the remote control, or you can

access this feature through the main menu. The channel

trim menu is shown below.

To set channel levels using the test tone function:

1. Press the ch. cal button on the remote (make sure to

press the main button rst). This will produce a display

that shows:

When you select this function, the GTP-880’s test tone

will automatically cycle every few seconds through all the

speakers you have told the GTP-880 are connected to the

system. The unit cycles through the speakers in the

following sequence:

left front, center front, right front, right surr(ound), right

back (surround), left back (surround), left surr(ound),

subwoofer

2. Use the and buttons to adjust the speaker level.

You can adjust the selected channel level in 1dB steps

across a range of -15dB to +10dB.

To adjust channel trim from the main menu:

1. While playing the program material with output that

you wish to ne tune, press the menu button to enter the

main menu.

The main menu appears on the front panel display and the

OSD. The cursor on the OSD should be pointing to the input

conguration menu and input cong appears on the front

panel display.

2. Press the button until the channel trim menu is

selected. The cursor on the OSD should be pointing to the

channel trim menu and channel trim appears on the front

panel display.

While you are adjusting each speaker, the test tone will

remain on that channel until you have stopped changing

| ADCOM GTP-880 Owner’s Manual40

3. Press select to enter the channel trim menu. The

channel trim menu appears on the front panel display and

the OSD. The selected menu item should be left front.

4. Use the and buttons to adjust the channel trim.

You can adjust the selected channel trim level in 1dB steps

across a range of -15dB to +10dB.

5. Press the button when you have nished making the

channel trim adjustment. If necessary, repeat steps 4

and 5 until you have completed setting the level for each

speaker in your system.

6. Press the button when you have nished making the

channel trim adjustment to all the speakers in your system

to select the return to main menu option.

7. Press the select or menu button to return to the main

menu, or press the menu button twice to exit.

To adjust channel trim using the trim function:

1. Press the ch. trim button on the front panel or the

remote control. The front panel display and the OSD will

show the following:

3.6 Delay Conguration

Setting the speaker delay is crucial to the proper perfor-

mance of any surround decoder component like the GTP-

880. Your home theater system will not perform properly if

this process is not completed.

To accomplish this process you will need a tape measure or

other means of determining the distance of each speaker

from the primary listening position.

To set the speaker distance delays for your speakers:

1. Press the menu button to enter the main menu. The

main menu appears the OSD. The cursor on the OSD should

be pointing to the input conguration menu.

2. Use the and buttons to adjust the channel trim

level. You can adjust the selected channel level in 1dB

steps across a range of -15dB to +10dB.

3. When you are nished adjusting the channel trim for

the selected speaker, press trim again to cycle to the

next channel. The unit cycles through the speakers in the

following sequence:

left front, center front, right front, right surr, right back

(surround), left back (surround), left surr, subwoofer

If necessary, repeat steps 2 and 3 until you have adjusted

the channel trim of all the speakers in your system.

4. Press the ch. trim button on the remote control again to

exit the channel trim function.

Remember to return any channel(s) that you have trimmed

back to the original setting when you are done watching

the particular program. If you nd you are continually

trimming the same channel(s) by the same amount for

every lm, you might want to consider re-calibrating the

speaker levels as shown in the section, “channel calibra-

tion”. Set the levels for the channel(s) up or down by the

amount you normally trim them.

2. Press the button until the delay conguration menu is

selected.

3. Press select to enter the delay conguration menu.

The delay conguration menu appears on the front panel

display and the OSD. The selected menu item should be

front L/R delay.

Before setting the speaker distances, you need to choose

what unit of distance you will be using.

4. Press the button repeatedly until the distance unit

menu is selected.

5. Use the and buttons to select between feet and

meters.

6. Press the button repeatedly until you return to the

front distance menu. To set the distance for each group

speakers in your system, you will need to measure, the

distances from your chosen listening/viewing position to

the various loudspeakers in your system.

Set the distance for the front L/R speakers to the nearest

foot/meter. Rounding up is OK. Distances can be set in the

following increments:

Feet 0 to 20 feet in 1 foot increments.

Meters 0 to 6 meters in 0.3 meter increments.

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43ADCOM GTP-880 Owner’s Manual |

You can scroll in either direction using the and buttons.

7. Press the button when you have made a selection.

Repeat steps 6 and 7 for the center and surround speakers.

NOTE: There is no delay function for the subwoofer

8. Press the button until the return to main menu option

is selected.

9. Press the menu button to return to the main menu, or

press the menu button twice to exit.

3.7 System Conguration Setting the Display Brightness

This control sets the front panel display brightness. The

default display brightness is set to be easily visible in a

normally lit room. If you prefer to dim the display, for

example, during movie viewing in a darkened room, you

can access the VFD brightness setting from the system

conguration menu.

Setting the OSD Time Out

This menu is used to set how long the on screen display

will remain visible after a button is pushed or setting is

changed on the GTP-880.

To set the on screen display time out:

1. Press the menu button to enter the main menu. The

main menu appears on the OSD. The cursor on the OSD

should be pointing to the input conguration menu.

2. Press the button until system conguration is

selected. The cursor on the OSD should be pointing to the

system conguration menu and system cong appears on

the front panel display.

3. Press the select button to enter the system conguration

menu. The system conguration menu appears on the front

panel display and the OSD.

4. Press the button until the OSD time out menu is selected.

To set the front panel display brightness:

1. Press the menu button to enter the main menu. The

main menu appears on the OSD. The cursor on the OSD

should be pointing to the input conguration menu and

input cong appears on the front panel display.

2. Press the button until system conguration is

selected. The cursor on the OSD should be pointing to the

system conguration menu and system cong appears on

the front panel display.

3. Press the select button to enter the system

conguration menu. The system conguration menu

appears on the OSD. Display bright is selected.

5. Use the < and > buttons to cycle through the available

options. The following times appear as you scroll through

them: 30 sec, 25 sec, 20 sec, 15 sec, 10 sec, 5 sec, 0 sec

Note: Setting the time out to 0 sec. disables the OSD status.

6. After making your selection, press the button twice

to exit the main menu.

Sleep Timer

This option allows you set how long the unit will remain

on before automatically shutting off. This mode can be

accessed using the sleep button on the remote control, or

from system conguration menu.

To set the sleep timer from the main menu:

1. Press the menu button to enter the main menu. The

main menu appears on the front panel display and the

OSD. The cursor on the OSD should be pointing to the input

conguration menu andinput cong appears on the display.

2. Press the button until system conguration is

selected. The cursor on the OSD should be pointing to the

system conguration menu and system cong appears on

the front panel display.

5. Use the and buttons to choose between full and half.

6. After making your selection, exit the main menu. The

dim button can also be used on the remote control.

| ADCOM GTP-880 Owner’s Manual42

3. Press the select button to enter the system

conguration menu. The system conguration menu

appears on the front panel display and the OSD.

4. Press the button until the sleep time set menu is selected.

5. Use the and buttons to cycle through the available

choices. The following times appear as you scroll through them:

60min, 50min, 40min, 30min, 20min, 10min, 5min, 0min

6. After making your selection, exit the menu.

Theater Compensation

Theater compensation provides special equalization

within any of the selected DSP modes. Most theatrical

soundtracks are mixed on large dubbing stages for play-

back in large movie theaters. When these soundtracks are

played back in your home, they may appear to have too

much treble, sounding harsh and “bright.” Theater com-

pensation modies the audio signal to reduce these char-

acteristics and make the soundtrack reproduction more

natural sounding.

menu is selected.

5. Use the and buttons to choose between on and off.

6. After making your selection, press the menu button

twice to exit the main menu.

To turn on theater compensation using the th-eq button:

1. Press the th-eq button on the remote control. The front

panel display and the OSD will show the following:

2. Press the th-eq button again to toggle the between on

and off. The theater compensation menu will disappear

automatically approximately ve seconds (a factory

default, may be changed in OSD time out) after you make

your selection.

Theater compensation can be accessed from the main

menu or the th-eq button on the remote control turns

theater comp. on/off.

To turn on Theater compensation from the main menu:

1. Press the menu button to enter the main menu. The

main menu appears on the front panel display and the

OSD. The cursor on the OSD should be pointing to the input

conguration menu and input cong appears on the front

panel display.

2. Press the button until system conguration is

selected. The cursor on the OSD should be pointing to the

system conguration menu and system cong appears on

the front panel display.

3. Press the select button to enter the system

conguration menu. The system conguration menu

appears on the front panel display and the OSD. The

selected menu item should be display bright.

4. Press the button until the theater comp.

Dolby Pro Logic II Cinema and DTS-ES NEO:6 Cinema

include a form of equalization of their own to address the

same conditions. When using these modes the addition

of theater compensation may cause excessive reduction

of the upper frequencies. However, you may wish to

experiment with different soundtracks to nd what sounds

best to you.

Important Note: Theater compensation is not recom-

mended for music modes, as the equalization added is not

normally needed.

Analog Level Input and Peak Indicator

Not all consumer products (CD players, DVD players, etc.) reach

a 2V RMS output, therefore the analog input level needs to be

adjusted to meet such requirement before being processed.

Adjustments are made in 1dB steps from -15dB to +10dB and do

not affect any of the analog direct inputs.

Should the input signal overload the analog to digital

convertor, the word “peak” will start ashing after “anlg

peak ind:” until the user turns down the input signal via

the master volume knob or left/right selector (when in the

system cong menu).

3.8 Pro Logic II and NE0:6 Music Cong

The PLII Music parameter menu is used to adjust the

panorama, dimension and center Width processing options

when listening to music in the Dolby Pro Logic II surround

mode. For a description of these options, see the section

titled “surround format information.” The PLII parameter

menu is shown on the following page.

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45ADCOM GTP-880 Owner’s Manual |

To adjust the PLII Music Parameters:

1. Press the menu button to enter the main menu. The

main menu appears on the OSD. The cursor on the OSD

should be pointing to the input conguration menu and

input cong appears on the front panel display.

scroll through them:

step 0, step 1, step 2, step 3, step 4, step 5, step 6, step 7

You can scroll in either direction using the and buttons.

Depending on how the center width control is set, you may

adjust the apparent placement of the center channel image

so that it is heard only from the center speaker, so that it

is blended into the left and right speakers as a phantom

image, or that it is blended among the front left, center

and right speakers in varying amounts. As with the other Pro

Logic II controls, the use of this setting and the degree to

which it is used is a matter of personal preference.

9. Center image can also be adjusted.

2. Press the button until the PLII music parameter menu

is selected. The cursor on the OSD should be pointing to

the PLII music parameter menu and PLII music parameter

appears on the front panel display.

3. Press select to enter the PLII music parameter menu.

The PLII music parameter menu appears on the front panel

display and the OSD. The selected menu item should be

panorama.

4. Use the and buttons to select between on and off.

When this setting is on, Pro Logic II’s panorama circuits

will blend an amount of the front channel information into

the side speakers so that the sound eld appears to wrap

around the front and sides of the soundstage. Experiment

with a variety of program sources to see if this effect is

one you prefer.

5. Press the button to select the dimension menu.

6. Use the and buttons to cycle through the

dimension options. The dimension settings appear as

follows as you scroll through them:

step 0, step 1, step 2, step 3, step-3, step-2, step-1

You can scroll in either direction using the and buttons.

The dimension control uses special circuitry to give the

impression that the “center” of the sound eld is moving

towards the front or rear of the room. Experiment with a vari-

ety of program sources to see if this effect is one you prefer.

Use as much or as little dimension as you feel is needed.

7. Press the button to select the C width menu.

8. Use the and buttons to cycle through the C width

options. The C width settings appear as follows as you

10. Press the menu button to return to the main menu, or

press the menu button twice to exit.

3.9 Room Two Conguration

This menu controls the setting for your second room and the

output from the room 2 out jacks on the rear of the GTP-880.

This function can be accessed in three ways. You can press

the rm.2 button on the remote control, you can access this

feature through the Main menu, or from the front panel

(please refer to the front panel interface overview section in

this manual for details). The room two menu is shown below.

To adjust the room two settings:

1. Press the menu button to enter the main menu. The

main menu appears on the OSD. The cursor on the OSD

should be pointing to the input conguration menu.

2. Press the button until the room two menu is selected.

The cursor on the OSD should be pointing to the room two

menu and room two appears.

3. Press select to enter the room two menu. The room two

menu appears on the front panel display and the OSD. The

selected menu item should be room two.

4. Use the and buttons to select whether you want

| ADCOM GTP-880 Owner’s Manual44

the room two feature on or off. If on is selected, the red

LED below the word room 2 on/off on the front panel will

illuminate indicating activation of the second stereo room.

5. Press the button to select the Input menu.

6. Use the and buttons to select a stereo analog

source which signal will be sent through the room 2

outputs to the second room. The source choices appear as

follows as you scroll through them:

DVD, video 1, video 2, video 3, VCR, tuner FM, tuner AM,

CD, TAPE, AUX

Note: Stereo analog connections must be made from each source

except tuner.

You can scroll in either direction using the < and > buttons.

7. Press the button to select the mute menu.

8. Use the and buttons to select whether the room

two mute function is on or off.

9. Press the button to select the volume menu.

10. Use the and buttons to increase or decrease the

volume level of the signal being sent to the second room.

The range available is from -80dB to 10dB. Use caution as

you can set a very high volume level and not be aware of it

because of the distance between you and the second room.

11. Press the button to select the return to main menu option.

12. Press the select or menu button to return to the main

menu, or press the menu button twice to exit.

2. Press the same button for ve (5) seconds to choose

from among three data format options for digital audio

sources. The following is shown on the front panel display

and the OSD:

Auto is the default setting for this option, and means that

when the unit detects the special code imbedded within

certain data streams such as Dolby Digital or DTS it will set

itself to properly decode that type of incoming signal.

3. Use the and buttons to select one of the data

format options. You can select either Dolby D(igital), DTS,

or PCM (for Pro Logic II), as the default format. If you do

this, signals that are not in the selected format won’t be

recognized. Therefore, we recommend that you leave the

system in auto mode unless you wish to use the selected

mode exclusively.

The data format menu will disappear automatically

approximately 10 seconds after you make your selection.

Dynamic Range

Dynamic range is a special feature of Dolby Digital

that compensates for difcult listening situations by

compressing the dynamic range of the speaker output. An

example would be when you are watching a movie with a

soundtrack that contains very loud passages and you don’t

want to disturb others in the house.

3.10 Additional Options Surround Data Format Lock

The GTP-880 will automatically set the surround format

based on the signal it receives from the selected source. To

avoid the slight delay occasionally encountered in the auto

select process, you can choose to override the auto data

format detection circuitry by following the procedure below.

To lock a specic surround mode:

1. Press the desired surround mode button (Dolby, DTS, or

stereo) on the remote control repeatedly to cycle through

the available processing options. Your selection will appear

on the front panel display and OSD.

Both low-level boost and high-level cut compression inte-

grated into night mode compensation is only available

when the surround mode of the selected input source is

set to Dolby Digital or Dolby Digital EX and downmixing is

not enabled (i.e. if the source is a 3/2.1 AC-3 stream, the

system must be congured to have at least a 5.0 speaker

setup, or greater). When the system is downmixing a

multichannel AC-3 stream and Night mode compression is

enabled, the low-level signals may still be boosted, how-

ever the high-level signals will not be compressed.

To enable/disable Night Mode compensation:

1. Press the d.range button on the remote control. The

night mode selection appears on the front panel display

and OSD under the currently selected input source.

2. Use the and buttons to change the night mode

45ADCOM GTP-880 Owner’s Manual |

47ADCOM GTP-880 Owner’s Manual |

setting. The unit cycles through the options in the

following sequence:

no comp, dr comp1, dr comp2, dr comp 3, dr comp4

The night mode menu will disappear automatically approx-

imately 5 seconds (a factory default, may be changed in

OSD time out) after you make your selection.

In most cases a minimum amount of dynamic range reduc-

tion is automatically included in the bitstream to ensure

safe downmixing. However, regardless if the user chooses

to engage Night mode compression or not, the DSP auto-

matically ensures safe downmixing regardless of the signal

encoding.

Use the and buttons to select a dynamic range option

you prefer for the Night setting.

no comp: This option leaves the compression at 0% change.

dr comp1: This option increases the compression by 25%.

There are two types of automatic compression control

built into the Dolby Digital process. Compression makes

the loud parts softer and the soft parts louder to reduce

the difference between the two.

One type of compression is most useful for situations such

as late night viewing of programs with a wide dynamic

range (like many action movies) that might disturb oth-

ers in your home. This function can also be used to pro-

vide compression for program material that may require

enhancement of overall intelligibility (such as some older

soundtracks).

Another feature provided by this option is the neces-

sary peak limiting required to avoid signal overload when

"downmixing" functions are selected.

The second variable provides additional peak limiting to

allow overall average program level to be increased by

adding even more compression to the signal.

These two algorithms can provide sufcient overall gain

reduction to allow even wide dynamic range soundtracks

with very soft parts and very loud parts to maintain good

audibility at low volume levels.

dr comp2: This option increases the compression by 50%.

dr comp3: This option increases the compression by 75%.

dr comp4: This option increases the compression by 100%.

Each option increases the amount of Dynamic Range com-

pression to the signal. Depending on your family, neigh-

bors, circumstances, and the overall volume you wish to

achieve, we recommend you start with DR COMP1 or DR

COMP2 as your initial setting. You will have to experiment

with program material and your personal preferences to

determine what is acceptable and best for you.

Press the button to select the return to main menu option.

Press the select or menu button to return to the main menu,

or press the menu button twice to exit the menu system.

| ADCOM GTP-880 Owner’s Manual46

Installer’s Notes

This page has been intentionally left blank.

47ADCOM GTP-880 Owner’s Manual |

49ADCOM GTP-880 Owner’s Manual |

Resolving Problems

Use the chart on the opposite page to solve common situ-

ations that don’t require professional attention. If the

steps stated in possible solution do not resolve your prob-

lem, then please contact your ADCOM dealer or call the

ADCOM customer service department. Any problems not

covered here should be brought to the attention of your

ADCOM dealer or ADCOM customer service dept.

A special note on “hum:” When there is a low-volume

“hum” audible throughout your speakers, even with the

main volume turned all the way down, you have a com-

mon phenomenon known as a “ground loop.” A ground loop

is basically a difference in ground voltages between two

or more components which are connected electrically and

which creates multiple current paths where there must only

be one. This difference in potentials creates a 60Hz low-

level sound (approximately a low A), that seems to “hum.”

It can be caused by adding new components to your sys-

tem, but that does not imply there is anything electri-

cally wrong with any new component. With the advent

of audio/video and home theater systems, the problem

has become commonplace. Generally, the cause is the

Cable-TV incoming signal line. This new incoming line may

add an additional ground at a different potential to the

AC line ground of your other equipment (refer to note I

and 2, to troubleshoot a hum problem).

Note 1: Cable TV systems can sometimes contribute to

ground loop problems which cause “hum.” To determine

if your cable system is the contributing factor, discon-

nect the Cable-TV incoming signal line (round, 75Ω) at

the wall, or the first component the cable is connected to

(i.e. the cable box, or VCR). If the hum is no longer pres-

ent, you must insert a “75Ω ground loop isolator” before

reconnecting the line. You should check with your ADCOM

dealer to obtain one. If the “75Ω ground loop isolator”

works only partially or not at all, then please read note 2

to complete the troubleshooting procedure.

the amplifier. If the hum disappears, try another set of

RCA cables. Connect one RCA cable at a time to see if one

specific cable is responsible. If any or all cables cause the

hum to appear, then the preamp or processor should be

evaluated for proper operation by your dealer or autho-

rized service center.

System Reset

In rare cases the GTP-880 internal processor may freeze or

lock-up causing abnormal operation. This is common to all

micro-processor controlled devices when the unit is subject

to excessive static discharge, AC line noise, or power spikes.

In most cases it is easy to solve this problem by simply

unplugging the GTP-880 from its AC power source for

about five minutes. After waiting, reconnect the power

cord and turn the unit on. If the unit functions normally,

no further action is needed.

In the event that the unit still does not operate prop-

erly, it may be necessary to manually reset the proces-

sor. Note, however, that when the processor is reset you

will lose all settings including digital audio assignments,

surround mode settings, speaker configurations, tuner

presets and any other memory items. For this reason we

strongly recommend that you record these settings so that

it is easy to restore them after resetting the processor.

To reset the unit to factory default settings you will need

to enter the discret remote control command. Please

refer back to the discrete remote control commands

table. The command name is “Factory Defaults”, the IR

code is 86h. This should reset the system.

If the manual reset does not solve the problem, contact

your authorized ADCOM dealer, an authorized ADCOM

service center or contact ADCOM’s service department

directly for further advice.

Note 2: Make sure that the power amplifier is at least

6” from the GTP-880. Usually putting another compo-

nent between them is sufficient to minimize the hum. If

this does not reduce the hum, turn the system off and

disconnect all Inputs from the amplifier. If the hum still

persists, then your dealer or service center must examine

| ADCOM GTP-880 Owner’s Manual48

Symptom Possible Reason Possible Solution

No sound

No sound on one channel

No sound on surround channels

No sound on center channel

“Dolby Digital” OR “DTS” autodetection function does not work

• Power AC lead unplugged or power not switched on

• Tape Monitor selected

• Mute on

• Power Amplifier not on

• Speaker not properly connected or damaged.

• Input lead disconnected or damaged

• In Setup “OFF” for surround speaker selected

• No surround mode selected

• Mono sound source

• Speakers not properly connected

• Surround volume level too low

• In Setup “OFF” for center speaker selected

• Speaker not connected properly

• Center volume level set too low

• Source not connected using digital input

• Bit Stream is PCM

• Check if AC lead is plugged in and power switched on

• De-select Tape Monitor mode

• Switch off Mute

• Turn on the Power Amplifier

• Check connections and speakers

• Check leads and connections

• Select appropriate Surround mode (large or small)

• Select a Surround Mode

• Test system with stereo or Dolby Surround material

• Check speakers and connections

• Increase surround volume level

• Select appropriate Center mode (large or small)

• Check speaker and connection

• Increase center volume level

• Connect digital output of source to GTP-880

• Check source material

Weak bass/diffuse stereo image

Remote control handset not working

No sound with tuner

Noise, hiss on AM and FM

Distortion on FM

Whistles or buzzes on FM & AM

Whistles or buzzes on AM

• Speakers wired out of phase

• Batteries dead, or incorrectly inserted

• IR transmitter or receiver windows obstructed

• IR receiver in direct sun or very bright ambient light

• Antenna leads incorrectly connected

• Station not selected or weak signal with FM Mute on.

• Weak signal

• Multi-path signals or interfe ence from another station

• Interference from other electrical sources - computers, games consoles

• Interference from fluorescent lighting or electrical motor

• Check connections to all speakers in the system

• Check or replace batteries

• Remove obstruction

• Place unit away from direct sun, reduce amount of ambient light

• Check antenna connections to preamplifier

• Re-tune or switch off FM Mute

• Check station tuning. Adjust or replace antenna.

• Check station tuning. Adjust or replace antenna

• Check station tuning. Switch off or move the source of the electrical noise

• Check station tuning. Adjust or replace AM antenna

No RDS name (PS)

• Station signal too weak.

• Station not transmitting RDS data

• Check station tuning. Adjust or replace antenna

• No remedy

49ADCOM GTP-880 Owner’s Manual |

51ADCOM GTP-880 Owner’s Manual |

Caring for your GTP-880

Great care has been taken by ADCOM to ensure that your amplifier is as flawless in appearance as it is electronically.

The front panel is a heavy-gauge, high-grade aluminum extrusion carefully finished and anodized for durability. The

chassis, top cover and rear panel are heavy-gauge steel that has been powder coated and baked to ensure a lasting

finish. If the front panel, top or sides become dusty or fingerprinted, they can be cleaned with a soft lint-free cloth,

slightly dampened with a very mild detergent solution or glass cleaner.

If you will not be using your home theater system for an extended period of time, it is always a good idea to turn the

unit off using the power switch on the rear panel of the GTP-880. This will prevent the automatic turn on circuits from

accidentally turning the system on during your absence.

DO NOT SPRAY OR POUR LIQUIDS OF ANY KIND DIRECTLY ONTO THE GTP-880.

Servicing

ADCOM has a technical service department to answer questions pertinent to the installation and operation of your unit.

In the event of difficulty, please contact us for prompt advice. If your problem cannot be resolved through our combined

efforts, we may refer you to an authorized repair agency, or authorize return of the unit to our factory. To aid us in

directing you to a convenient service center, it would be helpful if you indicate which major city is accessible to your home.

Please address mail inquires to:

ADCOM Service 8551 East Anderson Drive, Suite 105 Scottsdale, Arizona 85255 USA

Phone, Fax or Email inquires to:

Voice: (480) 607-2277 Fax: (480) 348-9876 Monday through Friday 9:00 AM to 5:00 PM MST Email: service@adcom.com

For fax inquires, please include a return fax number for the reply. When calling or writing about your ADCOM product,

be sure to note and refer to its serial number as well as the date of purchase and the dealer from whom it was

purchased. In any communications to us, please include a daytime phone number where we may reach you. In the event

the unit must be returned to our factory for service, you will be instructed on the proper procedure when you call or write for a return authorization. Under no circumstances should your unit be shipped to our factory without prior

authorization, or packed in other than its original carton and fillers.

If the original shipping carton and its fillers have been lost, discarded, or damaged, a duplicate carton may be obtained

from our service department for a nominal charge.

Always ship prepaid via United Parcel Service (UPS) or other approved carrier. Do not ship via parcel post, since the

packing was not designed to withstand rough parcel post handling.

FREIGHT COLLECT SHIPMENTS WILL NOT BE ACCEPTED

UNDER ANY CIRCUMSTANCES.

| ADCOM GTP-880 Owner’s Manual50

GTP-880 Specication

Preamplier Analog Section

Input Impedance .... . . . . .. . .. . .. . . .. . .. . . .. . .. . .. . . . 26KΩ

Output Impedance (Main-RCA) .. . .. . . .. . .. . . .. . .. . .. <600Ω

Rated Input .. . .. . .. . . .. . .. . . .. . .. . .. . . .. . .. . . .. . . 1.0Vrms

Maximum Input .. . . . .. . .. . .. . . .. . .. . . .. . .. . .. . . .. . 7.0Vrms

Rated Output (100kΩ load) .. .. . .. . .. . . .. . .. . . .. . .. 2.0Vrms

Minimum Load .. . . .. . .. . . .. . .. . .. . . .. . .. . . .. . .. . .. . . . 5kΩ

Maximum Output .. . . . . .. . .. . .. . . .. . .. . . .. . .. . .. . 9.5Vrms

Volume Range

Main .. . . .. . .. . .. . . .. . .. . . .. -80dB to +10.0 dB (1dB res)

Zone .. . . .. . .. . .. . . .. . .. . . .. -80dB to +10.0 dB (1dB res)

Bass Management

High-Pass Slope .... . . . . .. . .. . .. . . .. Crossover Frequency

(Small Speaker Setting) .... . . . . . 12 dB/octave (2nd order)

(Adj. 40/60/80/100/120/150Hz)

Low-Pass Slope (Subwoofer) .. .. 24 dB/octave (4th order),

40-150Hz as above

Tone Control

Bass Center Frequency/Range .. . .. . . .. . .. . 100Hz / ± 8dB

Treble Center Frequency/Range .... . . . . .. 10kHz / ± 8db

Channel Separation (at 1kHz) .. . . .. . . .. . .. . .. . . .. . .. . 80dB

Crosstalk Between Inputs (at 1kHz) .. . .. . .. . .. . . .. . .. 85dB

Preamplier Digital Section

Frequency Response

Direct Inputs .. . . . .. . .. . . .. . . 10 Hz to 20 kHz +0 / -0.2 dB

Analog-DSP Inputs ... . . . . .. . . 10 Hz to 20 kHz +0 / -0.5 dB

Digital Inputs .. . . . . .. . .. . .. . . 10 Hz to 20 kHz +0 / -0.4 dB

THD+N (at Rated Input & Output)

6-Channel Direct Inputs .... . . . . .. . . 0.0035% (80 kHz BW)

Analog-Direct Inputs .. .. . .. . . .. . .. 0.0035% (AES17 lter)

Analog-DSP Inputs ... . . . . .. . . .. . .. . 0.005% (AES17 lter)

Digital Inputs .. . . . . .. . .. . .. . . .. . .. . 0.0025% (80 kHz BW)

IMD (CCIF) @ 15 kHz & 16 kHz

6-Channel S/E Inputs .. . . .. . .. . . .. . .. . . .. . .. . .. . . 0.003%

All Other Analog Inputs .. . . . .. . .. . . .. . .. . .. . . .. . . 0.002%

Digital Inputs .. . . . . .. . .. . .. . . .. . .. . . .. . .. . .. . . .. 0.005%

S/N Ratio (ref. 2.0Vrms A-weighted)

All Direct Inputs ... . . . . .. . . .. . .. . . .. . .. . .. . . .. . .. . 98dB

Analog-DSP Inputs ... . . . . .. . . .. . .. . . .. . .. . .. . . .. . . 93dB

Digital Inputs .. . . . . .. . .. . .. . . .. . .. . . .. . .. . .. . . .. . 100dB

FM Tuner Section

Sensitivity

IHF .. . .. . .. . . .. . .. . .. . . .. . .. . . .. . .. . .. . . .. . . 10dBµ typ.

50dB S/N .... . . . . .. . . .. . .. . .. . . .. . .. . . .. . .. . 13dBµ typ.

S/N Ratio

Mono .. . . .. . .. . .. . . .. . .. . . .. . .. . .. . . .. . .. . . .. 72dB typ.

Stereo .. . . . .. . . .. . .. . . .. . .. . .. . . .. . .. . . .. . .. 60dB typ.

Distortion

Mono .. . . .. . .. . .. . . .. . .. . . .. . .. . .. . . .. . .. . . .. 0.3% typ.

Stereo .. . . . .. . . .. . .. . . .. . .. . .. . . .. . .. . . .. . .. . 0.5% typ.

Stereo Separation ..... . . . . .. . . .. . .. . .. . . .. . .. . . 40dB typ.

Adjacent Channel Selectivity .. . . .. . . .. . .. . . 50dB ± 400kHz

Frequency Response .. .. . . .. . .. . . .. . 20 Hz to 15 kHz ± 1dB

AM Tuner Section

Sensitivity (20dB S/N) .. . . . . .. . .. . .. . . .. . .. . . .. . .. . . 400uV

S/N .. . .. . .. . .. . . .. . .. . . .. . .. . .. . . .. . .. . . .. . .. . .. . . .. 50dB

Distortion .. .. . .. . . .. . .. . . .. . .. . .. . . .. . .. . . .. . .. . .. . . 0.7%

One Signal Selectivity (± 10kHz) ..... . . . . .. . .. . .. . . .. 35 dB

Video Section

Bandwidth

Composite & s-video .. . .. . . .. . .. . .. . . .. . .. . . 6 MHz -3dB

Component Green .... . . . . .. . .. . .. . . .. . .. . . 100MHz -3dB

Component Red .. . . . .. . .. . . .. . .. . .. . . .. . .. 100MHz -3dB

Component Blue .. . . . . .. . .. . .. . . .. . .. . . .. . . 100MHz -3dB

All video inputs and outputs are 75 ohms, 1.5 Vp-p. Component inputs and outputs

work with any Standard requiring ultra-wide bandwidth including Component-RGB,

HDTV, line doublers, quadruplers, and scalers.

General

Supply Voltage .. . . . . .. . .. . . .. . .. . .. . . . 105-130V, 60Hz only

Power Consumption ..... . . . . .. . . .. . .. . . .. . .. . .. . . .. . 45W

Fuse Rating .. . .. . .. . . .. . .. . . .. . .. 1.0A slow-blow 5x20 mm,

2.0A slow-blow 5x20mm

Dimensions

Width .. . . . .. . .. . .. . . .. . .. . . .. . .. . 17 inches / 431.8 mm

Height .. . . . .. . . .. . .. . . .. . .. . .. . . . 5.75 inches / 146 mm

Depth .. . . . .. . .. . .. . . .. . .. . . .. . .. . 16 inches / 406.4 mm

Weight .. . . . .. . . .. . .. . . .. . .. . .. . . .. . .. . . .. 28 lbs. / 12.7 kg

Trigger Outputs 1, 2 (Zone) .. . .. . . .. . .. . .. Sequential Delay

50 mA @ 12 VDC

Specications are subject to change without notice.

51ADCOM GTP-880 Owner’s Manual |

ADCOM

A division of Klein Technology Group, LLC 8551 East Anderson Drive, Suite 105 Scottsdale, Arizona 85255 Voice: (480) 607-2277 Fax: (480) 348-9876 http://www.adcom.com

| ADCOM GTP-880 Owner’s Manual52

GTP880_manual_v1.3

Adcom GTP-880 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual