[Yaesu] FT-757GX difficulties

[Ron Youvan]

> I've encountered a few problems with my recently purchased '757, some of
> which I can repair but a couple have me stumped:

> 1) No carrier null on USB but the receiver seems to be working okay. LSB
> is perfectly okay. I have looked at on-line resources and see no mention
> of this issue.

   I don't understand, transmit or receive?  If receive is the pass band
tuning centered, does adjusting it cure the problem?

> 2) Inconsistent tuning rate. At some places in the knob rotation I get
> normal (10Hz?) steps but at other spots the step rate is at least 100Hz.
> That made tuning tough in the NAQP RTTY contest! Is there a possible fix
> for this or can the encoder assembly be replaced?

   You need to ascertain if it is related to the position of the knob where
the action changes, or it is truly random. The digital encoders can frequently
be cleaned or repaired.  Lint, cracks or paint flaking on glass or plastic
disks have been found to cause troubles,  They are pretty durable overall.
I do not know how to disassemble this kind/style.

> Any suggestions would be appreciated.
-- 
    Ron  KA4INM - I think I could live on my pay if
		 governments didn't take half!