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Junior Varsity
Amplifier problem, need some troubleshooting help.
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<blockquote data-quote="John Roberts" data-source="post: 132573" data-attributes="member: 126"><p>Re: Amplifier problem, need some troubleshooting help.</p><p></p><p>Yes shorted output devices is a common problem (it's how they fail) but no I was not suggesting the poster repair it himself. Often you need to replace more than just the failed output devices so an incomplete DIY repair that didn't fix all the problems could get expensive and blow up the new replacement transistors too. </p><p></p><p>Unless you know what you are doing, get some professional help that does. Since you said you have a VOM, measure the DC voltage of the output. If it is pegged to one DC rail or the other that is another sign one or more output devices are shorted, and will also eat your woofer in a NY minute (less than 60 seconds). </p><p></p><p>JR</p></blockquote><p></p>
[QUOTE="John Roberts, post: 132573, member: 126"] Re: Amplifier problem, need some troubleshooting help. Yes shorted output devices is a common problem (it's how they fail) but no I was not suggesting the poster repair it himself. Often you need to replace more than just the failed output devices so an incomplete DIY repair that didn't fix all the problems could get expensive and blow up the new replacement transistors too. Unless you know what you are doing, get some professional help that does. Since you said you have a VOM, measure the DC voltage of the output. If it is pegged to one DC rail or the other that is another sign one or more output devices are shorted, and will also eat your woofer in a NY minute (less than 60 seconds). JR [/QUOTE]
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Amplifier problem, need some troubleshooting help.
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