Note 1: Cable TV systems can contribute to ground loop problems, which in turn, cause “hum.” To determine whether your cable system is the contributing factor, disconnect the cable TV incoming signal line (the round, 75 ohm cable) before it first connects to your system. If the hum disappears, you should insert a “75 ohm Ground Loop Isolator” between the cable down lead and your system. Check with your ADCOM Dealer to obtain one. If the isolator does not fully cancel the hum, please read Note 2 to complete the troubleshooting procedure.

Note 2: Make sure that the power amplifier is at least 6" from the Tuner/Pre-amp. Usually, putting another compo- nent between these two units is sufficient to minimize the hum. If this does not work, turn the system off and disconnect all input cables from the amplifier. Turn the system on again. If the hum persists, your Dealer or Service Center should check the amplifier. If the hum disappears, try another set of RCA cables. (Remember to turn your entire system off whenever you change cables. You may also need to wait a few moments after turning the amplifier off until the power supply discharges to avoid nasty “thumps” when you disconnect or con- nect cables.) Connect one RCA cable at a time to see if the hum returns and, if it does, which specific cable is responsible. Replace that cable. If the hum persists with any (or all) cables, then your GTP-760 should be checked by your Dealer or Authorized Service Center.

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Adcom GTP-760 owner manual
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GTP-760 specifications

The Adcom GTP-760 is a high-performance audio/video surround processor that combines advanced technology with ease of use, delivering an exceptional home theater experience. At the heart of the GTP-760 is its extensive support for various audio formats, including Dolby Digital, DTS, and MPEG. This enables the processor to provide an immersive audio experience, allowing users to enjoy their favorite movies, music, and games with remarkable clarity.

One of the standout features of the GTP-760 is its multiple input options. It comes equipped with a range of analog and digital inputs, including HDMI, allowing for seamless integration with a variety of audio and video sources. The HDMI inputs support 4K video pass-through and scaling, making the GTP-760 a future-proof option for home theater setups. Additionally, the inclusion of S-Video, composite, and component video connections ensures compatibility with older devices.

The GTP-760 also offers a comprehensive equalization system, allowing users to tailor their audio output to suit their room’s acoustics and personal preferences. The built-in audio DSP (Digital Signal Processor) delivers advanced sound processing capabilities, enhancing the overall listening experience. With customizable sound modes, users can select settings optimized for music, movies, or gaming, ensuring versatility for different content types.

User friendliness is a focal point of the GTP-760 design. The intuitive front panel controls and the ergonomic remote make navigation a breeze, while the backlit display provides clear visibility, even in low light environments. Additionally, the processor features programmable memory settings, allowing users to save different configurations for quick access.

Beyond audio performance, the GTP-760 offers robust video processing capabilities. It supports various video formats, ensuring high-quality picture output regardless of the source. The unit’s solid build quality and premium components contribute to its reliability and longevity.

In conclusion, the Adcom GTP-760 is a well-rounded surround processor that delivers outstanding sound quality and video processing capabilities. Its variety of input options, advanced audio technologies, and user-friendly design make it an excellent choice for both amateur and avid home theater enthusiasts. With its ability to enhance audio-visual experiences, the GTP-760 stands out as a remarkable addition to any entertainment system.
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