[Elecraft] 40 meter reciever not tuning

[W3FPR - Don Wilhelm]

Roland,

I suggest you start by re-checking the VCO voltage readings as specified on
page 61 of the manual.  At the time they were done, you ahould have had all
voltages within range.  Ask yourself what has changed in the VCO area since
that time - the answer would normally be 'nothing'.  You may want to tell us
what the VCO Voltage readings actually are.

For your speaker problem, if you know the speaker and external jack are OK,
the only thing left is the contacts in the headphone jack.  Make certain the
headphone jack is properly soldered at all pins - they are more difficult
than most to solder since the pins do not project through the board.  It is
possible that you can have a bad headphone jack, but check the soldering
first.

73,
Don W3FPR

> -----Original Message-----
>
> I was told to report back.  Ok,  I told you-all before that 40
> meters wasn't tuning except on the display.  Well I thought all
> the other bands were tuning.  Looks like 30 meters isn't tuning
> around either.
> I was told by Don to check left on R30.  I checked and while
> tuning noticed that the voltage DID NOT vary.
> I don't have a capacitor checker so I don't know about C71 other
> than replacing it.  It has a little monolithic cap marked "820"
> on it.  All I have around is a disk NPO "82" that I could swap it
> out with, is this ok?
> I put the rig on 7000 and the freq. probe to TP1 and then CAL
> FACTR.  You said it should read 11915.  It reads 11341.  It DOES
> NOT change when moving the dial.
> On the speaker, No AC detected.  I also jumpered it directly to
> the speaker just to check it out.  Nothing.  I jumpered the K2
> speaker to my small wonders lab SW+ QRP rig and it works FB.
> Thanks,
> de Roland in Stockton
> #3090 N5VWN
>
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