[Kenwood] TS-930s TX audio

Thu, 08 Aug 2002 21:00:36 -0300

	Right!!, what I tried to mean was a bias check ONLY, not a setting.

Best regards
Guillermo - LU8EYW.

Clif Holland escribi�:
> 
> DO NOT set the bias on a 930/940 using a voltmeter. You must use a current
> meter in line. The drivers are very sensitive to bias and will short with
> just a little overcurrent.
> I
> It's OK to check for a general idea of the bias, but check ONLY.
> 
> Clif Holland, KA5IPF
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> ----- Original Message -----
> From: "Guillermo" <[email protected]>
> To: "John Peregord" <[email protected]>
> Cc: "Kenwood" <[email protected]>
> Sent: Thursday, August 08, 2002 6:48 PM
> Subject: Re: [Kenwood] TS-930s TX audio
> 
> > If with low settings of mic gain audio sounds clipped, may be a bias
> > problem. Check bias voltages of pre-driver, driver pair and final pair
> > transistors. You should measure 0.6V...0.75V; put rig on tx, ssb, zero
> > mic gain and test from emitter to base.
> >
> > Good luck
> > Guillermo - LU8EYW.
> >
> >
> > John Peregord escribi�:
> > >
> > > My TS-930S has a problem on the TX audio.  RX and CW transmit is fine.
> I'm
> > > told the audio sounds clipped and I must run with the mic gain almost
> all
> > > the way up.  I can turn it back and run with the processor on and it
> sounds
> > > better but still not quite right.  Maybe somebody has run into this
> before?
> > > Any help will be appreciated.
> > >
> > > John/KB8UMD
> > >
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