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General Car Audio
Failed Denon DSW-80 sub
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<blockquote data-quote="Zeptoplix" data-source="post: 3637434" data-attributes="member: 580648"><p>So, I picked up one of these units for $10.</p><p></p><p>Got it home, its broken, not a big deal it only cost me $10</p><p></p><p>Now i want to fix it.</p><p></p><p>I took it apart. That was alright.</p><p></p><p>What I found to be interested, is that the amplifier is completely sealed in a small box, with no external heatsink. The heatsink inside, was a joke. basically a thin plate of metal folded a couple times.</p><p></p><p>There are two modules, they look like mosfets, but i searched the part number and they came up something like thrysistors or something.</p><p></p><p>Parts : Toshiba A1941, Toshiba C5198</p><p></p><p>I am leaning towards one or both of these being failed. How can I test them? The amp powers on but goes into protect mode. No visible burn marks, or puffy caps. I think this is a poor design to have so much heat generated in this small box (the transformer, is in this box to) and that these parts have failed. What do you guys think?</p></blockquote><p></p>
[QUOTE="Zeptoplix, post: 3637434, member: 580648"] So, I picked up one of these units for $10. Got it home, its broken, not a big deal it only cost me $10 Now i want to fix it. I took it apart. That was alright. What I found to be interested, is that the amplifier is completely sealed in a small box, with no external heatsink. The heatsink inside, was a joke. basically a thin plate of metal folded a couple times. There are two modules, they look like mosfets, but i searched the part number and they came up something like thrysistors or something. Parts : Toshiba A1941, Toshiba C5198 I am leaning towards one or both of these being failed. How can I test them? The amp powers on but goes into protect mode. No visible burn marks, or puffy caps. I think this is a poor design to have so much heat generated in this small box (the transformer, is in this box to) and that these parts have failed. What do you guys think? [/QUOTE]
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Failed Denon DSW-80 sub
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