http://www.dproducts.be/drake_museum/images/AC10_schematic.JPG
Schematic shows 1.5 A AC input and 3 A at 12V output. My guess is the 15 was a missed decimal point typo. If it is blowing on the input side: 1) verify the charger socket for the TR-22 is not shorted and that nothing is plugged into it. 2) unsolder the output of the 14V transformer (aka input to the bridge rectifier) and see if it still blows the input fuse. If it does, it sounds like a bad transformer. If not, then it is the electronics. Make sure the switches, socket etc on the input side are wired per schematic. That could be causing an immediate short which would pop the fuse. Sometimes "service technicians" do some strange modifications/corrections/adjustments to equipment. 73, Ron WD8SBB --- On Sun, 1/16/11, Michael Harden <[email protected]> wrote: From: Michael Harden <[email protected]> Subject: [Drakelist] ac 10 Power supply To: [email protected] Date: Sunday, January 16, 2011, 12:20 AM Text for AC 10 Say's "15 amp fuse " for the main power. The schematic shows a 1 1/2 amp fuse. I replaced the original fuse with a 1 1/2 fuse and it blew without being connected to anything. IE turned on only. Any help would be appreciated. Thanks in advance. Mike -----Inline Attachment Follows----- _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
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