Troubleshooting Guide

The Sherbourn PT-7010A is expertly designed and built to provide years of trouble-free performance. Most problems that occur can usually be solved by checking your setup or making sure that the audio and video components connected to the processor are on and fully operational.

The following information will help you deal with common setup problems you may experience during normal use of your unit. If problems persist, contact your Sherbourn Dealer for help.

No Sound (from one or more full range speakers)

•Speaker cables may have come undone. Turn off your system and check the cables, and tighten the binding posts.

•An audio cable may have an internal break.

•The volume level is low for the channels concerned. Recheck the calibration procedure (page 39).

•The Mute switch is on.

•The channel has not been turned on in the Speaker Size Menu (page 37).

•The correct surround mode is not selected. (Some DVD

discs are stereo only).

Note: In Source Direct mode, only the front left and right speakers are engaged. They must also be set to Large.

No Subwoofer (or poor output)

•The subwoofer’s amplifier is off or its controls are set low.

•Are all other speakers set to LARGE in the Speaker Size menus?

•SUB is not switched on in the Speaker Size Menu (page 37).

•Recheck the calibration procedure (page 39).

•Adjust the Crossover and check Bass Management (page 40 and 42).

•See page 47 to find the best location for your subwoofer.

•If the bass is weak during Dolby Digital or DTS playback, check the correct audio output is selected in your DVD menu, otherwise it may just play stereo into your PT-7010A and you won’t get the true LFE signal to the subwoofer.

Poor AM Reception

•Often one of the main complaints about poor AM reception is that the same AM station can be heard at different frequencies. Check to see BOTH wires of the AM loop antenna are connected. A loop antenna is required for AM reception, as it forms part of the front- end tuned circuit.

Poor FM Reception

•The antenna may be incorrectly attached.

•Station not correctly tuned in, weak or off the air.

•You can improve reception by using external antennas. Some cable TV feeds also offer FM reception.

Input Selection Problems

•If you find that certain inputs cannot be selected, check the INPUTS menu of the OSD (page 36), and make sure that the input has not been disabled in that particular Zone.

There is No TV Picture

•Make sure that the video input of your TV monitor is connected to the Main monitor output on the PT-7010A rear panel.

•Check that your Monitor is selecting its correct video input.

•Check the video connection from your selected source component into the PT-7010A.

•Make sure that you are using the correct video connections. If in doubt, try connecting the video output from your source directly to your TV monitor. This will help you narrow down the problem.

•Use only one type of Component Video, S-Video, or Composite Video connection on a given input. If more than one are present at the same time, the PT-7010A will choose higher quality format and the S-Video and the Composite Video output will be off in this case.

No Tone Control Functions

•Remember that the tone controls are non-functioning whenever the PT-7010A is using the 8-CH input, Source Direct mode, or in Zone 2.

No Dolby Digital or DTS Playback

See page 43

•Look for the Dolby Digital or DTS Logo on the source program’s box or sleeve. Make sure your player’s digital output is set to BITSTREAM for Dolby Digital or DTS. This is often a player’s setup menu item, not the disc’s menu. Some discs are available with a number of different options, such as Dolby Digital or Dolby Pro Logic. Make sure that you have selected the correct mode from your player’s menu. Only digital inputs will work for these modes.

•Check that your player’s digital output is connected to the appropriate corresponding digital input on your PT- 7010A.

•There is no AC-3 RF input connection for Laserdisc players. You will need an external RF demodulator.

•Check the calibration procedure from time to time. This is an excellent way of checking that all speakers are working correctly.

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Sherbourn Technologies PT-7010A owner manual Troubleshooting Guide
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PT-7010A specifications

Sherbourn Technologies PT-7010A is an advanced multi-channel power amplifier that has made a significant mark in the audio engineering world. Renowned for its performance and versatility, the PT-7010A caters to both audiophiles and professionals seeking a high-quality audio solution.

One of the standout features of the PT-7010A is its impressive power output. Delivering 100 watts per channel into an 8-ohm load, the amplifier guarantees robust sound reproduction across a variety of audio formats. With the ability to drive both low and high impedance loads efficiently, it handles demanding speaker systems with ease, making it a suitable choice for home theaters as well as professional audio environments.

Another key characteristic of the PT-7010A is its use of Class A/B amplification technology, which combines the efficiency of Class B with the linearity of Class A. This results in a rich, warm sound with minimal distortion, ensuring that the audio signal remains clear even at high volume levels. Additionally, the amplifier features extensive thermal management, allowing it to maintain optimal performance without overheating, thus enhancing its lifespan.

The build quality of the Sherbourn PT-7010A is equally impressive. Constructed with high-grade materials, the amplifier not only ensures durability but also minimizes vibrations that can adversely affect sound quality. Its sleek design makes it an aesthetically pleasing addition to any audio setup, whether in a living room or a commercial venue.

Connectivity is another highlight of the PT-7010A, featuring multiple input options, including balanced XLR and unbalanced RCA connections. This versatility allows for seamless integration with a wide array of audio sources, ranging from home theater systems to professional recording equipment.

The amplifier's user-friendly interface simplifies operation, with easy access to power settings and a front-panel indicator to monitor status. Furthermore, the PT-7010A is designed to be environmentally friendly, with energy-efficient components that reduce power consumption without compromising performance.

In conclusion, Sherbourn Technologies PT-7010A stands out as a powerful and versatile amplifier that combines high performance with advanced technology. Its quality construction, exceptional sound reproduction, and variety of connection options make it an excellent choice for anyone looking to elevate their audio experience, whether in home entertainment systems or professional settings.
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