[Elecraft] Resistance checks on RF board page 38

[VE3WDM]

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
 



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