[Elecraft] XV-144 Receiver RF Amp Bias Adjustments

[KJ4YQK]

Hi Don,

 

   Tnxs for the reply.  I broke a resister R14, lifting one end to read.  It
check good before the lead broke off.  Head to Radio Shack to pick up a new
one.  I did not get the 6.8 volt at the C4 D3 Junction.  I will retouch the
solder joints with the iron to see if it comes back.  Will pick up an extra
D3 while I am radio shack just in case.  

 

David

 

From: Don Wilhelm-4 [via Elecraft]
[mailto:ml-node+6613554-1050478-347528 at n2.nabble.com] 
Sent: Saturday, July 23, 2011 8:21 AM
To: KJ4YQK
Subject: Re: XV-144 Receiver RF Amp Bias Adjustments

 

Dave, 

Yes, you should read 6.8 volts to ground at the C4 D3 junction. 

Make certain you have voltage at both ends of R15.  If you do, then 
check the soldering carefully in the upper left quadrant of the board. 

73, 
Don W3FPR 

On 7/23/2011 1:00 AM, KJ4YQK wrote: 
> R13 is not adjusting anything.  0 volts.  I was wondering what to look
for. 
> Has anybody experience this, and what is the corrected action. 
> What voltage should I read at C4 D3 junction.  Should it be 6.8 volts? 
> 
> Thanks Dave 
> 
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