Question about Panasonic SC-HT900 System
I have had the Panasonic SC HT900 for about 3 years (out of warranty). The problem I am having is that the surround sound mode on TV and Tuner and the digial in mode all will not work. If the TV and Tuner are in stereo mode (just the front speakers and center speaker) they work fine. The DVD/CD mode sound works fine in all modes (stereo, surround sound, dolby digital). The problems occurrs when putting the system into the digital mode or the surround sound mode while the system is on the TV input or Tuner. Sometimes the sound will work for a few minutes and then there will be a "pop" noise and the sound will go out. If I change the mode to stereo then it will work again, but as soon as you change it back to surround sound the sound will go out. I took it to a repair show about 2 months ago and they advised they could not find a problem. I brought the unit home and it worked for about two weeks and then started messing up again...over the next few weeks the problem got worse and then finally the surround sound and digital modes will not work at all anymore. I have checked all speaker connections and as I previously stated the DVD/CD surround and dolby digital modes work fine. Any advice you can provide would be appreciated. Thanks, Greg Edmondson
I have the same problem with my RCN system
Posted on Aug 27, 2009
I have the same probelm when playing a dvd does it work then when u press the surround sound button it goes slient ???
Posted on Mar 27, 2008
When I play a DVD it works fine and the problem comes and goes...sometimes at the worst time (i.e. during SuperBowl this last year). I have had two repair shops look at it and both advised they could not figure out what the problem was and that the home theater in a box systems are only made to last about 3 years or so if use reguarly. They said that they are made with cheap parts and these parts get out and burn up or wear out easily. I am staying with this system until it completely quits on me, as long as it still plays DVD's fine I will keep it for my kids to watch movies on. Good luck with your system.
Posted on Mar 27, 2008
I tried to fix the popping defect to no avail. I thought if i powered the internal subwoofer fan to a different power source that it would solve the issue. Although the fan spins faster connected to an external power source, and it keeps the sub motherboard cooler, it still pops (less often) and loses sound. The fan just cools it faster so that it can happen again. The working fan only extends the functionality twice as long but still has the same issue. I did notice on the subwoofer motherboard that there's a dark spot near a few transistors/regulators. I suspect at least one of them have already failed causing the system to overheat anyway. I also suspect that if I keep using the system, those will also fail. I will never buy anything Panasonic and neither will anyone I know (I'll tell them all not to). Don't buy this product.
Posted on Mar 14, 2007
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Posted on Jan 02, 2017
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