Troubleshooting Guide
The Sherbourn
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
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
•Check that your Monitor is selecting its correct video input.
•Check the video connection from your selected source component into the
•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,
No Tone Control Functions
•Remember that the tone controls are
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
•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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