[Elecraft] xv222 shuts down

[Don Wilhelm]

Dave,

Can you measure how much current is being drawn by the XV222?  It sounds 
like the resettable fuse is being tripped.
That could be either due to a fault or due to excessive heating of the 
PA module.
The max output should be reduced for FM operation.

In addition - the XV222 was designed for the low end of the band, not 
higher up in the FM portion.  That means that the output Low Pass Filter 
may be tuned for a cutoff frequency lower than where you were 
operating.  Should that be the case, excessive current and lower output 
would be a result.

73,
Don W3FPR

On 6/1/2013 5:00 PM, Dave Glenn wrote:
> I have an xv 222 transverter that will shut down after transmitting for
> about a minute.
>
> Using FM for testing. The front panel just goes dark and I need to power
> cycle the k3 to get it back.
>
>   
>
> I am using a K3 to drive both 222 and 432 transverters.
>
>   
>
> Also, when going through the alignment process, R22 should be between .1 and
> 10 volts. When I adjust this the voltage will jump from about 7 to 18 volts.
>
>
> I discovered it had been running at this higher setting and getting about 18
> watts output. When I roll the voltage at TP5 down to the correct range I get
> almost no output from the xvter.
>
>