James,
Well, maybe not that good - just a little application of logic aided by
a look at the schematic.
Couple that with the facts that the design is known to work and the most
common cause of failure is the soldering.
Have a good day and an Happy New Year.
73,
Don W3FPR
JC Quinn wrote:
Wow! Don, you're good! I had looked at those pins under 5x
magnification and they looked fine. I reflowed those pins and a
couple of more on the board that did look questionable and now she
works fine!
73 and Thanks a Million!
James
----- Original Message ----- From: "Don Wilhelm" <[EMAIL PROTECTED]>
To: "JC Quinn" <[EMAIL PROTECTED]>
Cc: <[email protected]>
Sent: Sunday, December 30, 2007 6:21 PM
Subject: Re: [Elecraft] S meter
James,
I have to take you at your word that the AGC is working OK. If that
is in fact true and you cannot get good S-meter indications on the
bargraph, the only thing that could be wrong is th esoldering of pins
9 and 10 of RP6 or the soldering of U6 pin 3 (all on the Control
Board). Check those first.
Should that not be the problem, then more extensive checks of the AGC
circuit are in order, and you can also conclude that your AGC is
*not* working properly.
Remember that the most common cause of kit problems is soldering
problems. When in doubt, check the soldering, then recheck the
soldering. When you have finished that, check the soldering.
73,
Don W3FPR
JC Quinn wrote:
With the RF gain fully ccw the S meter will not light at all. I
have tried it with the meter set in both DOT and BAR. Now get this,
at the end of PART II Alignment, CAL S HI did work. Something
messed it up during final construction. FWIW the Bar Display DOES
work in transmit showing RF/ALC so its not burned out and the first
segment comes on in CAL S LO. Any suggestions as to where to look
next? Does anybody know if Elecraft is working on Dec 31?
73
James Quinn kc4ee
--
No virus found in this incoming message.
Checked by AVG Free Edition. Version: 7.5.516 / Virus Database:
269.17.12/1203 - Release Date: 12/30/2007 11:27 AM
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
