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- Emerson TV pinouts for IC601 - 1 Update
- The saga of the wooden San Jose Schools BATHROOM PASS continues - 1 Update
- Peavey PV14 mixer, 2012 - 2 Updates
| djnewfie@gmail.com: Nov 02 04:19AM -0800 IC601# IC PHOTOCOUPLER TLP781F(D4-FUNBLL F) QPEL781FBLLF Is whats listed in the service manual. |
| Stormin Mormon <cayoung61@hotmail.com>: Nov 02 06:58AM -0500 On 11/1/2014 7:19 PM, John Grossbohlin wrote: > Along those lines... > http://www.washingtonpost.com/blogs/answer-sheet/wp/2014/10/24/teacher-spends-two-days-as-a-student-and-is-shocked-at-what-she-learned/?wpisrc=pdwmk > Saw this article in other publications too... That's seriously incredible. What a major learning moment. And to think, schools over the whole great nation do that to kids every school day? Time for the peasants to start a number two pencil revolt. You have nothing to lose but your desks in rows! - . Christopher A. Young Learn about Jesus www.lds.org . |
| N_Cook <diverse@tcp.co.uk>: Nov 02 10:25AM Decided to grind 4 holes through the pcb in the heatsink footprint and give a graduated set to the vanes, to make a staircase, either side, pointing away from the IEC, plus mica insulator for the replacement. Perhaps the set to one side plus air from under the pcb may give some sideways movement. Despite not the slightest local discolour indication of the pcb overheating or any of that telltale dust accumulation on the underside of the main pcb directly over the heatsink. But I feel I have to do something other than just direct TOP replacement |
| "Gareth Magennis" <gareth.magennis@ntlworld.com>: Nov 02 11:29AM "N_Cook" wrote in message news:m350pm$fe6$1@dont-email.me... Decided to grind 4 holes through the pcb in the heatsink footprint and give a graduated set to the vanes, to make a staircase, either side, pointing away from the IEC, plus mica insulator for the replacement. Perhaps the set to one side plus air from under the pcb may give some sideways movement. Despite not the slightest local discolour indication of the pcb overheating or any of that telltale dust accumulation on the underside of the main pcb directly over the heatsink. But I feel I have to do something other than just direct TOP replacement The replacement chip I fitted did not overheat. Perhaps there is a batch of dodgy chips out there that have a failure mode that causes overheating. Unlikely as that sounds, it fits in with my experience, and the fact that Peavey seem to know that these chips "break". Why not just fit the new chip and see how hot it gets? You shouldn't need to add any extra cooling. Gareth. |
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