RE: [drakelist] DRAKE TR-7 TROUBLESHOOTING HELP NEEDED

[Paul Rubin]

The first thing that I would try would be to remove the DR-7 display board and reinsert it. Also make sure all the connectors are properly aligned and inserted. That would be the most common cause for failure to lock, and general radio flakiness.   On a related note, does anyone have the Drake board removal tool for sale, or can you tell me the best way to make one?   Thanks, Paul N8NOV   -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of K3PZ - PAUL Sent: Monday, March 15, 2004 9:04 PM To: [EMAIL PROTECTED] Subject: [drakelist] DRAKE TR-7 TROUBLESHOOTING HELP NEEDED   I had a perfectly functioning Drake TR-7.  I removed the NB-7 & Filter board to put in to another TR-7. I then installed a NB dummy card and filter board with stock filters back in to the original TR-7. When I powered it back on, it would not work properly. I think I may have been off 1 pin when I inserted the NB dummy card. The symptoms are: No audio at all, it is completely dead. On bands 160 - 20 meters the display cycles at approximately 17Mhz and will not lock. On bands 15 - 10 meters the display will cycle at approximately 33Mhz and will not lock. When I key the radio up in CW mode, the output seems fine 100 watts+ on all bands. I'm not sure exactly where to check voltages but on the bottom of the parent boad, the +10v seems OK. The +5v also seems OK.  There is also a +10T and a +10R which are both close to 0V. Not sure where to go next with this.  Any help would be greatly appreciated. Thanks in advance.   Paul K3PZ [EMAIL PROTECTED]