[1000mp] Monitor Receiver

[Pete Smith]

At 08:21 PM 2/26/03 -0700, Denis wrote:
>I have just acquired a 1000MP s/n 5.....     The  problem is that the
>sound when the Monitor is turned on is real bad.  I can hear my voice
>but it is really distorted.
>
>    * Turning the volume up or down does not help the situation.
>    * Adjusting the RF power level does not help.
>    * Turning the process off/on does not change anything. I have used
>      the stock mic as well as a Heil but the outcome is still distorted.
>    * The output RF signal on the air is perfect.
>
>I tried the same mics on my other MP s/n 9.... and everything worked
>real good.
>
>Was there a design fault in the early models?  I have looked for the
>monitor receiver in the schematics but have not found it yet.
>
>Anyone have any suggestions?
>

Does the monitor also sound bad on CW?  My Mark 5's monitor started 
sounding rough on 15m CWa few months after I bought it.  Went back to Yaesu 
for this and some other issues under warranty, and of course they couldn't 
find it, because it seems to be related to heating, meaning that it takes 
quite a few minutes of transmitting before it gets rough.  Since coming 
back from them it has continued to deteriorate slowly, to the point where 
now it is audible on other bands and on phone as well.  Maybe one of these 
days it will quit altogether and they'll be able to fix it.

I guess my point is that it may be a defective component rather than a 
design problem.

73, Pete N4ZR
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