Adcom GTP-860 owner manual Antenna Connections, Preamp Outputs, Auxiliary Outputs, Monitor Outputs

1.2 Inputs & Outputs System Connectiotns

Like the front panel, the GTP-860’s rear panel is carefully

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

ple as possible. However, the GTP-860’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-860 with other components in your system.

Note that the GTP-860’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) BLACK centers = DIGITAL AUDIO inputs and

CENTER CHANNEL and

SUBWOOFER inputs and outputs

[14] Antenna Connections

AM Antenna: An AM loop antenna is supplied with the GTP-860 and is required for AM reception. Open the clip terminal lever and insert the wire from the antenna. Closing the lever will lock the wire in place. Test various positions for the antenna, but always ensure the loop is placed vertically for best reception. Placing the antenna close to large metal items such as metal shelves or radiators may interfere with reception.

NOTE: When reception is not satisfactory using the supplied AM loop antenna alone, connection of an external antenna is recommended. The antenna cable to the loop antenna must not exceed three meters.

FM Antenna: A ribbon wire FM antenna is included and should be connected to the FM connector at the rear of the unit using the ‘balun’ adapter supplied. The ribbon aerial should be mounted on a vertical surface and placed so that it forms a ‘T’.

Experiment with placement of the antenna to find the position that gives the best signal strength and low- est background noise. An inadequate FM signal normally results in high levels of hiss, especially in stereo, and interference from external electrical sources. In areas of poor FM reception, the tuner section’s performance can be improved by using an externally mounted FM antenna. A qualified aerial installer will be able to advise and fit a recommended aerial for your reception conditions.

[15] Preamp Outputs

Before making any connections, check that the GTP-860 and the power amplifiers it will be connected to are switched off. Connect the RCA-to-RCA leads from the Front Left and Right, Center, Surround Rear Left and Right, and Surround Back Left and Right Preamp Outputs to your external amplifiers. The subwoofer preamp output allows for connection to a sub-bass speaker system with its own external or integrated power amplifier (“active” or “powered” subwoofers).

With volume turned down to a low level, switch power on only after all connections have been made.

[16] Auxiliary Outputs

The auxiliary outputs allow a line level connection to various devices, such as an audio system in another room. The output is the selected source.

[17] Monitor Outputs

Composite Video and S-Video outputs are for connecting a TV or Video Monitor to view video sources connected to Video 1 through Video 5. Using a Video RCA-to-RCA lead or S-Video, connect the ‘Video Line In’ on the TV or monitor to the MONITOR OUT.

Note that an S-video input signal will also be available as a composite video signal on the Monitor out if the corre- sponding source is selected. Composite video input signals will also be available as S-Video signals on the Monitor output.

12 ADCOM GTP-860 OWNER’S MANUAL