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Junior Varsity
Anyone with Allen & Heath repair skills?
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<blockquote data-quote="Jeff Hague" data-source="post: 27427" data-attributes="member: 128"><p>Followup: Anyone with Allen & Heath repair skills?</p><p></p><p>I finally got the opprotunity to open the GL up and poke around. My component level "skills" are at least 20 years out of date so all I intended to do was reseat ribbon cables and if that fixed it; great, if not; take it to the shop...</p><p>Quite a few of them had some travel to be fully seated (some nearly an 1/8 of an inch!) so I felt it was a good exercise even if it didnt solve the hiss. It was also pretty dusty inside so I cleaned it out real good while there.</p><p>I didnt have time or room to bring anything but the board into my office so all I could do for bench testing was headphones but it did seem to solve the problem. I could make it hiss (both L & R outputs the same) by turning up the headphone output but only at extreme levels - much higher than I have ever had to run the board. I also noticed that assigning groups and channels to the LR buss added incremental levels of hiss but again, only at extreme levels and that behaviour is expected anyway.</p><p>Yesterday I got to check it out with the full rig in a live situation and I am happy to report that simply reseating the ribbon cables and clecning the dust out solved the problem - no more hiss! It was an outdoor festival too so I got to run the system pretty hot and the hiss is definately gone.</p><p>Thanks all for the posts!</p><p></p><p>Jeff</p></blockquote><p></p>
[QUOTE="Jeff Hague, post: 27427, member: 128"] Followup: Anyone with Allen & Heath repair skills? I finally got the opprotunity to open the GL up and poke around. My component level "skills" are at least 20 years out of date so all I intended to do was reseat ribbon cables and if that fixed it; great, if not; take it to the shop... Quite a few of them had some travel to be fully seated (some nearly an 1/8 of an inch!) so I felt it was a good exercise even if it didnt solve the hiss. It was also pretty dusty inside so I cleaned it out real good while there. I didnt have time or room to bring anything but the board into my office so all I could do for bench testing was headphones but it did seem to solve the problem. I could make it hiss (both L & R outputs the same) by turning up the headphone output but only at extreme levels - much higher than I have ever had to run the board. I also noticed that assigning groups and channels to the LR buss added incremental levels of hiss but again, only at extreme levels and that behaviour is expected anyway. Yesterday I got to check it out with the full rig in a live situation and I am happy to report that simply reseating the ribbon cables and clecning the dust out solved the problem - no more hiss! It was an outdoor festival too so I got to run the system pretty hot and the hiss is definately gone. Thanks all for the posts! Jeff [/QUOTE]
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Anyone with Allen & Heath repair skills?
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