RES: [1000mp] Brand New FT1000MP Field glitches

[50mhz]

I can't I am far away from the closest Yeasu dealer. Lets say 5.000 miles.

I can fix that. Just trying to get some inputs.

Fred Carvalho PY2XB

-----Mensagem original-----
De: 1000mp-bounces at mailman.qth.net
[mailto:1000mp-bounces at mailman.qth.net]Em nome de Harry Yingst
Enviada em: quinta-feira, 24 de junho de 2004 10:34
Para: All about Yaesu 1000mp
Assunto: Re: [1000mp] Brand New FT1000MP Field glitches


Hmmmmmmmmm

Friday afternoon unit?

I'd call your dealer.



--- 50mhz <py2xb at 50mhz.com> wrote:
> 
> 
> Fellows
> 
> I have purchased last month a second FT1000MP . I have been using the
> first
> one for the last two years, so I have quickly went thru all the
> functions
> and found this two problems on the new one. Perhaps some of you could
> me
> help on this :
> 
> 1) The VCC metering is not working. The voltage scale lights but no
> voltage
> indication.
> Missing connection ?  unplugged wire ?
> 
> 2) The side tone has a low frequency RF feedback on it. This is the
> most
> annoying problem
> 
> Description : When on CW, listening to the side tone, there is a low
> frequency RF feed back bumping the earphones and/or the speaker. It
> is not
> loud but annoying, mostly if  one is used to operate CW with low
> level side
> tone.
> 
> Where the problem is presented : Earphones, Speaker, External
> Speaker. It
> does not appears in the AF-Out output.
> 
> More : The HUM is there regardless the volume position and regardless
> the
> side tone level (VR 5001). Even with NO side tone level it is there
> constantly. For RF levels of 25W or less there is no RF HUM.
> 
> What I did to start investigation : I turned down VR 3001 to zero (no
> more
> audile beeps or side tone). RF feedback still  present. I have
> disconnect
> JO29 Flat Cable to open Side Tone and Beep signal path from the
> control
> board to the AF Board. RF Feedback remains.
> 
> What I think : RF is been picked up somewhere in the AF stages. RF
> must be
> bypassed (by means of decoupling capacitors) in the Audio Amplifier.
> Has
> Anyone experienced the same problem ? Any tip where to apply the
> bypasses.
> 
> 
> Thanks
> 
> PY2XB
> Fred Carvalho
> py2xb at integral.com.br
> 
> Fred Carvalho
> fcarvalho at integral.com.br
> Integral Sistemas e Com Ltda
> Sao Paulo - Brasil
> Tel 55-11-5545 2600
> Fax 55-11-5545 2601
> http://www.integral.com.br
> 
> _______________________________________________
> 1000mp mailing list
> 1000mp at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/1000mp
> 


=====
Harry - AB2PN

-

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