Thanks Bob! The LM 317 is okay, it's putting out 53,2 V and the insulation is intact. Any other idea?
Thanks, Olli - DH8BQA ----- Original Message ----- From: "Bob Wolbert, K6XX" <[email protected]> To: "'Oliver Dröse'" <[email protected]> Sent: Monday, October 03, 2011 10:19 PM Subject: RE: [Elecraft] KPA500 #431 & no fan running Oliver, Check the voltage on the LM317 voltage regulator's tab. If you forgot the insulators it will be 0 Volts. And it will be very hot! It should be >50V. 73 de Bob, K6XX > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Oliver Dröse > Sent: Monday, October 03, 2011 1:13 PM > To: [email protected] > Subject: [Elecraft] KPA500 #431 & no fan running > > Hi guys, > > just to report that I finished building my KPA500 this > afternoon. Everything > seems to be well except that the fan is not working, neither > in NOR menu > setting nor if I set the speed manually to any value between 1 and 6. > > Anyone any idea on that? Double-checked all the cabling > again, all ribbon > cables are tight and correctly mounted (checked that first as > I remembered > someboy with the same problem and that being the cause). > > Thanks in advance! Vy 73, Olli - DH8BQA > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ----- eMail ist virenfrei. Von AVG überprüft - www.avg.de Version: 10.0.1410 / Virendatenbank: 1520/3935 - Ausgabedatum: 03.10.2011 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
