Good evening Don, Here is what I have done, 1. I have tried reversing the leads on the DMM and the readings for lets say U1 pin 4 to ground went from 3.9 mega ohms to 2.9 mega ohms. so not really the reading I am looking for.
2. I heated up all the solder connections on the board and added solder where needed. I am using the WES51 iron turned all the way up. Here is one of my trouble shooting paths I did for U1 pin 4. 1. From U1 pin 4 to K13 pin 10.....result .02 ohms....a good result 2. From U1 pin 4 to K13 pin 1.......result 239.8 ohms a good result as this is the coil of K13 3. From U1 pin 4 to K9 pin 1.........result 239.8 ohms a good result as again this is coil of K13 only. 4. From U1 pin 4 to K9 pin 10.......result 480.6 ohms a good result reading coils from K13 and K9. 5. From U1 pin 4 to U1 pin 13.......result 480.6 ohms a good result again reading both coils K13 and K9 Note C82, C57 and C208 are in this circuit but not as yet installed. Now I go from ground to Pin 4 and am reading in the Mega ohms. And no matter which ground point I go to I get the same high ohm reading. As for R1 and R2 1. On R1 going from bottom terminal (terminal above R2) to C1 top side and get reading of .02 ohms...this is good 2. From same position on R1 again to other side of C1 and get OL. 3. I then go from the same position on R1 again to ground and again get OL. Not sure where to go next Don. Mike VE3WDM -- View this message in context: http://elecraft.365791.n2.nabble.com/Resistance-checks-on-RF-board-page-38-tp7573563p7573597.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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
