[Elecraft] Back to the SSB board

[Don Wilhelm]

Ian,

Have you tried checking the small toroid RF Chokes for shorts to the crystal
can?  That is a common cause of the problem you describe.  Just stick a
small piece of paper between the chokes and the crystal cans for a quick
check - if the receiver comes to life, rewind the chokes (being careful not
to scrape the wire insulation).

You can ignore the voltage at U4-3 until after you have properly adjusted
the carrier balance - that voltage depends on the exact setting of the
balance pot.

73,
Don W3FPR

> -----Original Message-----

>
> Hi all,
> Well I have finally started looking for the fault on my SSB board after
> about 9 months!  For some reason I have no receive when the board is
> plugged in.  If I short out pins 1 and 3 of J9 and J10 I get receive no
> problem, so it would appear to be a fault on the SSB board.
> I have checked the crystals to ground, all seems OK.  I have checked the
> voltages on the pin diodes and again, all would seem well.  In fact,
> other than a few small stray voltages, the only major anomaly I can find
> is a voltage on U4-3 of 6V on receive.  The manual states 0.6 volts.
> I would love any thoughts to point me in the right direction please?
>
> 73 Ian
>
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