APPENDIX
Troubleshooting Guide
The Sunfi re TGIII is expertly designed and built to provide years of
The following information will help you deal with common setup problems you may experience during normal use of your unit. If the problems still persist, please contact your Sunfi re Dealer for assistance.
No sound from the sub
•The subwoofer’s amplifi er may be off.
•Are all speakers set Large?
•SUB is not switched on in the SETUP menu.
•As a last resort, reset the TGIII.
Poor Tuning of Stations
•The antenna may be incor- rectly attached.
•Noise reduction not on.
If a source is always active, the automatic operation may return to that input as the analog audio varies. In this case, you should try and turn off any unused sources, or turn off the automatic mode.
If you are listening to a mono source, make sure it connects to a left input, or use a “Y” cord to feed both left and right inputs.
There is no automatic selection of the Phono input, Tuner, or
Certain inputs cannot be
No sound from one or more speakers
•Speaker cables may have come undone. Turn off your system and check the cables.
•Broken audio cable.
•The volume level is low for the channels concerned. Recheck the Calibration procedure.
•The Mute switch is on.
•The channel has not been turned on in the Speaker size menu.
•The correct surround mode is not selected. (Some DVD discs are stereo only).
•Zone 1 turned off, or inputs are disabled in the OSD Inputs menu.
•If you are using one surround back speaker, make sure its amplifi er is using the TGIII left surround back output, not the right (no output for 1 back speaker).
•AMP
•As a last resort, reset the TGIII, as shown on page 54.
•Stations are not correctly tuned in.
•The station is weak or has gone off the air.
•You can improve reception by using external antennas. Some cable TV feeds offer FM reception as well.
The same AM station can be heard at many different frequencies
•One wire of the AM loop an- tenna may not be connected.
•A loop antenna is required for AM reception, as it forms part of the
Full Automatic Operation does not work
In order to automatically choose the new input source, this mode senses the following active signals:
•Left audio signals.
•Video signal.
•Digital signals.
Note that LD or DVD players sometimes put out digital signals even when the disc is paused or stopped. Make sure that any sources are turned off when not in use.
selected
•Check the INPUTS menu of the OSD, and make sure that the input has not been disabled in that particular Zone.
A Hum is heard in your speakers
This problem is more than likely caused by a “ground loop” in your system, rather than a fault in the TGIII. Follow these steps to isolate the main cause of the hum, there may even be more than one.
•Remember to turn off all components in your system, including the amplifi ers and the TGIII, before disconnecting or connecting any cables.
•Disconnect the following items in order, and check each time if the hum has gone away:
•Disconnect all cables which come from outside the room, such as cable TV, satellite TV, or roof top antennas. Make sure that they are discon- nected where they fi rst enter the room, so they are making no connection to the TGIII or the TV, or any other compo- nent. If the hum is caused by the cable TV line, then you will need a “ground loop isolator.” This is an inexpensive device
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User's Manual