Question about Audio Players & Recorders
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Posted on Jan 02, 2017
SOURCE: Crown D-150 Amp
Sounds like something was spilled into the amp and it got into the controls, switch and switch knob. As for the knob, lean the amp forward about 45 degrees and dribble hot water into the space behind the knob slowly. Try to keep the water from going inside the amp. Eventually, the knob should come off with some pulling & twisting. Once you get it off, replace both pots and the switch. If water gets into the amp just dry it up with paper towels, etc. and let it continue to dry while getting the new parts. HTH, Emory
Posted on Oct 05, 2007
Speaker fuses are generally fast-blow styles 250 volt glass
If an amp shuts down, with speakers connected, it sounds like one of the power supply lines does NOT like what it's "seeing" . Probably output transistors bad ( or module)
Take it to a tech.
Posted on Jan 08, 2008
SOURCE: Problem with Samick PM4150 Mixer
Hi Mike, the protection circuit is operating in the amp. Generally, if you can turn the amp without speakers connected and signal up, then the amp is ok (as determined by the protection feature). If it goes into protection mode, without speakers connected, then you can be sure that the amp has a problem. I know its probably not what you wanted to hear, you may need to get the rig to a repair guy for a better check out of the problem. It would also pay to check your loudspeakers and leads to be sure that a faulty speaker or short circuit has not caused the amp to fail also. Reconnecting a good amp to a faulty shorted load, will make it fail again.... and the cycle continues... at more cost!! Good Luck, and questions you got, feel free to ask away. If you think the advice I have given here is good, a "FixYa" rating would be great:)
Posted on Mar 16, 2008
I would check out whatever drives the left channel first. If it is a transistor, you can put a ohm meter on the terminals and see if it shows a short (amp turned off). If there are two transistors for the left channel, and you find a short on one only, replace the other to be on the safe side.
Posted on Mar 25, 2009
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