Re: [drakelist] TR-7 2nd digit jumping.

[Mike Williams]

Thanks to Bill, Evan and Jim for the tips;  I followed the advice and resoldered the 9 pin connector and pulled the DR-7 board from the chassis.  Cleaned all connector pins with DeOxit and reseated the power supply card while I was at it.  Replaced the display board and the radio has been running for 10 hours without a glitch!  On to the next project with the L4B...   Regards,   Mike W4DL ----- Original Message ----- From: Jim Chaggaris To: 'Drakelist' Sent: Monday, September 18, 2006 4:24 PM Subject: RE: [drakelist] TR-7 2nd digit jumping.     Mike:   It is the display board that seems to be loose.  I suggest reseating it.  Mine does it from time to time but it’s usually the whole display and frequency that changes.  A quick “wiggle” of the board corrects the problem.       73’s Jim N9WW James Chaggaris President PowerOne Corp. 1020 Cedar Avenue Suite 110 St. Charles, IL 60174 Phn: 630-443-6500 Fax: 630-443-6505 Cell: 630-669-2241 www.pwrone.com From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Williams Sent: Monday, September 18, 2006 11:18 AM To: Drakelist Subject: [drakelist] TR-7 2nd digit jumping.   Last night after a couple of hours on 20 meters, the second digit of the display, the 4 as in 14.025, started jumping to a 3!  I changed bands and it did the same thing on all bands, the 2nd most significant digit would jump down one.  Turned the rig on this morning and it was OK but I only watched it a few minutes.  Has anyone seen this before?  I will open it up and clean and reseat all pertinent circuit cards and see if that remedies it.  By the way, when the digit changes, the frequency changes as well as evidenced by the loss of the particular signal so I'm guessing it has something to do with the VCO-synthesizer chain.  All input appreciated!   Good DX!,   Mike W4DL