My sister was listening music on my home theatre, after some time I saw that poorly insulated wires on subwoofer output had shorted and from then subwoofer output is distorted after I turn volume to about 15 and more (70 is max so it's 15 is really quiet). First thing to do is check and replace output transistor, right??
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Re: Samsung HT-DM150 sub output was shorted,need help
Yes, check the output transistors.
Also, measuring the DC voltage at the amp output could give us a clue. There should be no, or barely little (few mV) DC voltage across the amplifier's output terminals. Can you measure this please? (with amplifier turned on, and, it doesn't have to be playing any music)Muh-soggy-knee -
Re: Samsung HT-DM150 sub output was shorted,need help
7mV on output, that should be normalComment
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Good morning everyone,
I'm trying to repair an onkyo ht-r390 that has no sound output, despite the volume being at maximum, the rest seems to work; the video output signal (coming from an hdmi input) is present, but the audio is absent. Similar situation if I send an audio signal from any input I have no output.
The firmware reported is the following:
M:1.00/11107BLP
D:?.??/????????
O:1.00/11107AL
The DSP firmware given the question marks seems corrupt.
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