Question about Bose Lifestyle 30 System
Tips for a great answer:
Dec 30, 2014 | Onkyo Home Theater Systems
It is possible that the amplifier had encountered a fault with a higher current drain which had triggered it to a protection fault condition. The fault can be your output drivers- the MOSFETS/IC's fitted for both the channels, Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. Sometimes this can be a noise like a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.
You need to confirm and replace the specific stages or outputs. If not there can be issues in the mother board, maybe the protect circuit by itself is shutting off due to a faulty bias , maybe a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the protect is off then check for short on the speakers.
Also check the +5 volt on the processor and if this section does not receive power or if the IC is faulty then the system can hang. check the processor input/ouput data .
Aug 17, 2011 | Philips HTS3410D/37 700W DVD Home Theater...
Apr 04, 2010 | Sony Home Theater Systems
Apr 25, 2009 | Home Theater Systems
Jan 18, 2009 | Samsung HT-Q100 System
Nov 22, 2008 | Home Theater Systems
Sep 17, 2007 | Samsung HT-DB390 System
334 people viewed this question
Usually answered in minutes!