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DIY For Audio
Musical Fidelity F15 repair "nightmare"
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<blockquote data-quote="fdlsys" data-source="post: 1028896" data-attributes="member: 2310"><p>No, no, no...</p><p>First check your PSU, nothing connected to it. </p><p>If PSU is good and stable, you have one healthy channel, right? Connect only that one, observe the PSU again. </p><p>If all good and stable, measure, learn from the good channel. </p><p>Then power up the suspect channel (disconnect the good channel) with light bulb in series. See what causes the excessive current draw. It might be as simple as current limiting resistor (or a few) somewhere that has drifted way down low. It happens more often than people think.</p><p>Do you have the service manual?</p></blockquote><p></p>
[QUOTE="fdlsys, post: 1028896, member: 2310"] No, no, no... First check your PSU, nothing connected to it. If PSU is good and stable, you have one healthy channel, right? Connect only that one, observe the PSU again. If all good and stable, measure, learn from the good channel. Then power up the suspect channel (disconnect the good channel) with light bulb in series. See what causes the excessive current draw. It might be as simple as current limiting resistor (or a few) somewhere that has drifted way down low. It happens more often than people think. Do you have the service manual? [/QUOTE]
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DIY & Tutorials
DIY For Audio
Musical Fidelity F15 repair "nightmare"
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