Hi Jeff, KB2M I have sent to you the schematic diagram for the G5500 but the message bounced back to me because your @comcast.net don't match with my @tin.it
By the way and first of all check if you have 5 volt DC between studs A1 and A3 and between studs E1 and E3 on the rear of control box. If you don't have 5 volts DC probably the regulator Q2 7806C is gone. If you have another email address please let me know and I will try again to send you the schematic diagram. 73" de i8CVS Domenico ----- Original Message ----- From: "Jeff KB2M" <k...@comcast.net> To: <amsat-bb@amsat.org> Sent: Tuesday, July 19, 2011 10:54 PM Subject: [amsat-bb] Yaesu 5500 rotor problem > I'm having a problem with my 5500 after a thunderstorm. What is happening > is that the rotor works manually, but doesn't display az and el information > on the control box. Also when I try to use computer control it goes all the > way to stop in both azimuth and elevation. I'm thinking this might be in the > control box, as both az and el are doing the same thing, the control box > being the single point of failure. Did anyone ever have this problem? How > can I diagnosis what chip might be at fault without a schematic. I vaguely > remember having this same problem after a close lightning strike with my > prior az el Yaesu box about 14 years ago but don't remember what chip I > swapped out, or how I determined which one was at fault. This getting old > thing really sucks. Any help would be appreciated. > > 73 Jeff kb2m > > > _______________________________________________ > Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
