When we are watching a movie and the surround sound volume is above 45 and a climactic moment arises in the movie (music gets loud all of a sudden), the whole surround sound system shuts off. All you hear is a click and it's off. Then we have to turn it back on and the volume setting is set to the 30's (I've seen it as low as 32 and as high as 39). What could be causing this? The only power we lose is the surround sound system. It's like it's blowing a fuse or something and then resets when we turn it back on. Please help!! Thanks!
The click will be a relay to protect the main amp overloading. In many ways you are driving the amp to hard, unless there is a fault on the main amp which means it can't take the full load that it should handle. One cause of this for example would be a speaker that is either the wrong ohms, or of a lower wattage than what the amp can put out. Or in some cases a faulty speaker, or if the wiring is not good shorts when the speaker shakes when a very loud noise comes from it.
Things to check:
1 That no speaker is lower ohms than the amp.
2 That no speaker is lower in watts (RMS) than the amps total output for that channel it is on. Remember not all surround amps have the same volume on each channel.
It is of course possible to use smaller wattage speakers. But if you have an amp that can output say 200w. Connecting an 80w speaker to it would really limit the amount the volume control could be raised to.
3 Each speaker is working right. Plus all connections are neat with NO possibility of shorting.
If all of these are good then you have a fault on the main power amp. Probably one or more of the output device(s)
Before using the remote control for the following
operation
* Set the remote control mode selector to AUDIO
** There are exceptions in the operation mentioned
above. In such a case, follow each instruction
Dolby Pro Logic II*1
# Dolby Pro Logic II has a newly developed multichannel playback
format to decode all 2 channel sources - stereo source and Dolby
Surround encoded source - into a 5.1 channel.
Dolby Pro Logic II has two modes - Movie mode and Music
mode
# Pro Logic II Movie (MOVIE)
Suitable for reproduction of Dolby Surround encoded sources
# Pro Logic II Music (MUSIC)
Suitable for reproduction of any 2 channel stereo music sources
# Dolby Digital*1
Used to reproduce multichannel soundtracks of the software
encoded with Dolby Digital
# DTS Digital Surround*2
Used to reproduce multichannel soundtracks of the software
encoded with DTS Digital Surround. DTS Digital Surround (DTS) is another discrete multichannel
digital audio format available on CD and DVD software
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Same problem if volume is above 40 then Subwoofer shuts off and you have to shut the system off to get any volume back.,
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