[Elecraft] finishing my k2 with a Q7 problčme

[Sylvain St-louis]

Juste to be sure, i'm talking about Q7 on the rf board. Sorry for that

Sylvain ve2ssl
Le mardi 20 septembre 2005 à 16:42 -0400, W3FPR - Don Wilhelm a écrit :
> Sylvain,
> 
> I doubt that the high receive current is due to that incorrect resistance
> reading.
> 
> One of the possible causes for a high receive current is if 8T is on during
> receive - measure the voltage on Control Board Q1 collector, it should be
> zero or very close to that during receive.
> 
> Check the orientation of diodes D6 and D7 - the easiest way to check diode
> orientation is to compare with the parts placement diagram in the back of
> the manual.
> 
> You may want to check to see if any resistors are getting quite warm - that
> will indicate what circuit is drawing too much current.
> 
> If it is like the one with similar symptoms that I repaired Friday, RF Board
> R49 was getting hot due to a leaky collector to base junction in Q5 - but
> your problem may be quite different.
> 
> > -----Original Message-----
> >
> > I'm finishing my K2 and I did the resistance checks. I have 2.27K ohms
> > result on the Q7 base instead of 2.5K-3.0K ohms. Because of the minim
> > difference I run the k2 with this failded test and I have 520 ma
> > reading.
> >
> > Any one have an Idea?
> >
> > Thanks
> >
> > Sylvain VE2SSL
> >
> >
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