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Hello, my name is ***** ***** I'll assist you. I need additional info to troubleshoot the issue.
- How the sound system gets TV program sound? is it HDMI cable or Optical cable connected between TV and sound system?
- Do you get normal sound on regular channel or disc playback?
- Do you get sound from center speaker?
Hi Jim, sorry about delayed reply, was away from computer.
It seems surround sound settings in sound system, have you tried to run 'test tone' in setup menu to confirm every speaker is connected and give sound output?
Lets reset the system to restore default settings.
Please press Menu and select Reset then select Yes to reset the system.
Please try test tone now to see if all speakers give test tone?
Jim, press Dolby button on remote (located at last row) to enable surround sound or use SFC (music or movie) modes to get sound on all speakers while playing a disc. Do you get proper sound now or still front speakers work?
Jim, I'm out of ideas what it could be and I need to go offline now so let me repost the question and hopefully another expert will assist you further.
I'm opting out now.
Hi and welcome to JustAnswer,Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, that a RESET was not corrective is very significant as it would be indicative of a likely internal hardware issue.
While a likely/potential cause for the described symptom would be in the amp/output circuit board and may even be a cold solder, it is equally possible for a fault in the DSP (digital signal processing) circuit.
If comfortably able and feel safe to do so, are you then considering a DIY (do-it-yourself) repair approach? If yes, do you have access to and familiar with a multi-meter and even a soldering iron?
Also important, could you make use of the repair/Service Manual or at the very least, the schematic diagrams?
Appreciate the post back Jim.
And yes, primary suspect would be the circuitry inside the subwoofer particularly those attached to the aluminum heatsink.
Interestingly, it has to be posted that in some instances, it may be an issue with the connectors of system cable such as a bent or missing pin while in some others, it may be a break in the systems cable itself (least likely).
I realize that the above information may perhaps be not what was expected. Unfortunately, there is no quick-n-easy fix and neither is there a workaround; sorry for having to be the bearer of bad news.
Still, great that a DIY can be attempted.
Good luck and thank you too for the opportunity to be able to share the information.