Hello and How are you guys? Completely forgot I signed up this 4 years ago 
and now it has come to major use.
So I pulled out of the attic a Cambridge Soundworks DTT3500 5.1 surround sound system for my PC. Before I turned it on, I disassembled it and cleaned all the dust and debris. Plugged all the connections and the unit lit up like a christmas tree and tested the sound with original sound testing software that came with it.
It was working fine for a week since I pulled it out of the attic. Now, the front panel lights do not lit and when the unit is powered off, there is a red power light that stays lit. That light doesn't turn on anymore. I have unplugged from the amplifier and replugged, but did not do anything. I unplugged the power brick, but that did not do anything. So I plugged back the speakers and ran a sound test and the amazingly the speakers work fine. However, since I connected it via digital din to mini jack, I need to configure the unit, but because the lights do not work, I can't tell what mode it's on.
I did a search on Google and a didn't find anything related to what I am experiencing, but people replaced 3 caps near the sound chip under the metal heatsink and their problems appeared to go away.
I took it apart and desoldered the metal heatsink that covers this digital sound chip. I found those caps, but they appeared to be in good condition.
I checked the front panel lights, and there is a ribbon cable that attaches to the main board, that cable seems to be fine and not ripped. Also, there is a small cap on the front panel light board. I'm guessing that cap could be the culprit? The front buttons seem to work, just the lights don't come on.
I will update the post with plenty of pictures. I want to fix this, because I am one those guys who have a passion in fixing electronics and never would like to throw it away thinking its junk. I fixed my xbox 360 laser issue and was very happy with the results. I want to find the problem and find the solution to it.
Thanks guys.
and now it has come to major use.So I pulled out of the attic a Cambridge Soundworks DTT3500 5.1 surround sound system for my PC. Before I turned it on, I disassembled it and cleaned all the dust and debris. Plugged all the connections and the unit lit up like a christmas tree and tested the sound with original sound testing software that came with it.
It was working fine for a week since I pulled it out of the attic. Now, the front panel lights do not lit and when the unit is powered off, there is a red power light that stays lit. That light doesn't turn on anymore. I have unplugged from the amplifier and replugged, but did not do anything. I unplugged the power brick, but that did not do anything. So I plugged back the speakers and ran a sound test and the amazingly the speakers work fine. However, since I connected it via digital din to mini jack, I need to configure the unit, but because the lights do not work, I can't tell what mode it's on.
I did a search on Google and a didn't find anything related to what I am experiencing, but people replaced 3 caps near the sound chip under the metal heatsink and their problems appeared to go away.
I took it apart and desoldered the metal heatsink that covers this digital sound chip. I found those caps, but they appeared to be in good condition.
I checked the front panel lights, and there is a ribbon cable that attaches to the main board, that cable seems to be fine and not ripped. Also, there is a small cap on the front panel light board. I'm guessing that cap could be the culprit? The front buttons seem to work, just the lights don't come on.
I will update the post with plenty of pictures. I want to fix this, because I am one those guys who have a passion in fixing electronics and never would like to throw it away thinking its junk. I fixed my xbox 360 laser issue and was very happy with the results. I want to find the problem and find the solution to it.
Thanks guys.
)
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