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I have a PT7031 Sound bar for altec lansing. When I change the front volume, the rear volume changes as well. I can change the front and rear volumes independently.

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  • lunateric Oct 25, 2010

    I ralize that, but my problem, as i initailly described, is not that the left and right front levels increase at the same time, it is that both left and right front and back increaseat the same time. I can not increase the front and rear speakers independently, regardless of ir i use the front volume controls or the rear volume controls. (ie if i raise the front to +4 db the rear also goes to +4db at the same time.

  • lunateric Oct 25, 2010

    sorry, i see your confusion. I contradicted myself in the original problem statement by leaving out the word "not" it should have read " When I change the front volume, the rear volume changes as well. I can NOT change the front and rear volumes independently

  • lunateric Oct 26, 2010

    I am not making my comment based on my perception of sound coming from the front and back speakers. I go to the OSD and set my speakers based on the visual levels i see when i move the volume of the front and back speakers. I first raise the front spekaer level to +4db and the OSD shows me it is +4db. When I go to adjust the back speakers I see they are at +4db. I lower the back to +1db, and again the OSD shows me the back speaker volume at +1db. I go back to the front speaker volume to verify its level and it is now also at +1db. Regarless of which set of speakers I adjust, both front and back speakers move togeher. I have a friend that has the exact same unit and he is able to adjust the front speakers and back speakers independently, so I know my unit is not operating properly. What I want to know is are there a set of keystrokes on the remote that can reset this function or reset the entire unit to factory default operation? (BTW I have gone to the OSD menu and have chosen the reset from the menu but the problem persisted).

  • lunateric Oct 30, 2010

    I have confirmed all the buttons work as described. I have ensure my remote is set to audio to contol the unit. I have gone into the osd menu and have even reset the system to factory defaults. I have set it to blue ray and ensured the audio settings on the blue ray were 5.1. I then play the blue ray and go to the OSD. Th front and rear speaker volumes are still reacting together regardless of which one I increase or decrease.

  • lunateric Oct 30, 2010

    I have confirmed all the buttons work as described. I have ensure my remote is set to audio to contol the unit. I have gone into the osd menu and have even reset the system to factory defaults. I have set it to blue ray and ensured the audio settings on the blue ray were 5.1. I then play the blue ray and go to the OSD. Th front and rear speaker volumes are still reacting together regardless of which one I increase or decrease.

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3 Answers

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  • Master
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Yes. When you take power away from the front speakers then the back speakers will take the power. That is why the back changes with the front.

Posted on Nov 01, 2010

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  • Master
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Unfortunately, the truth is the controls change the output level of each channel of the front and rear outputs, such as is the case in a discrete 5.1 system. But this is not so. Raising the output of the front speakers raises the output of both left and right front speakers together. you can't adjust the left or right output individually. Raising the output of the rear raises the output of both left and right sides simultaneously as well. So, the adjustments are not as great as anticipated.

Posted on Oct 25, 2010

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  • Master
  • 656 Answers

I think the connections to your sound system is correct the sourrond sistems works in full when you play a filim you can see the variation in your speaker if you play music the effect will be low the sourrond system is fully functional when there is different noices for example in a filim the sound of a guy near to to sceen can be hard from the front speaker and the guy far from him can be heard from the rear speakers if in a film a car chase is there you can see the differance you can hear the sound of the car from rear speaker when it passes round automatically the front speaker gets its full volume till then the front speaker low sound will be heard

Posted on Oct 26, 2010

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  • rajesh raman
    rajesh raman Oct 26, 2010

    the tyoe of song or movies you playing can be different you may think the sound of the rear is decrease becuse the music or the filim is not working in sourround systems it may be labbeled so the sourrond system have seprate aplifier for all the speakers its indipentant amlifier so there wont be any defferance in sound mixing up the problem is with dvd or the cd you are using if you insert an old cd or dvd you will know the defferance which is not recorded in sourround system just sterio

  • rajesh raman
    rajesh raman Oct 27, 2010

    check wether any button pressed to mkal sliders to move together in some system its used so the desired sliders can move together

  • rajesh raman
    rajesh raman Oct 27, 2010

    check this 1. POWER Use to toggle between On and Standby modes.
    2.VOL /–
    Increases or decreases the overall volume level
    of the unit.
    3.3456
    and OK
    Move to highlight items in the on-screen display
    (OSD) setup menu. Press OK to confirm.
    4. AUDIO
    Sets the remote to control the PT7031 as
    opposed to DVD, TV, SAT/CAB or AUX devices.
    5. INPUT
    Press to cycle through inputs – DVD, TV/SAT,
    AUX, DVD digital, TV/SAT digital and AUX digital.
    6. MUTE Press to turn off or restore sound.
    7. FRONT, CENTER,
    REAR /– LEVELS
    Increases or decreases the volume level of the
    individual channels for the system.
    8. BASS Enhances low frequency or bass output.
    9. MODE
    Use to select virtual or stereo mode of system
    depending on the sound modes available from
    your audio source.
    10. OSD
    Press to enter or exit the on-screen display
    (OSD) setup menu.

  • rajesh raman
    rajesh raman Oct 31, 2010

    check the speaker line if correct i think the problem might be in the circuits don t go for remote try it manually to increase or decrease the volume first try the front speaker remove the connection then the rear speaker by changing the front and back volume control

  • rajesh raman
    rajesh raman Oct 31, 2010

    try the cariation by conecting one speaker front and increase and decrease the volume and check wether the volume increase or decrease now decrease the volume to minumun then increase the back speaker volume if there is veriation in sound you have problem with the system

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