[1000mp] MKV RX Relay Problem

[K8CIX at aol.com]

Hi,  I have been following this Relay Problem threads closely.  I  have a new 
FT-1000MKV-Field which exhibited the receiver DE-sensing about 3  months 
after purchase.
 
I have written two submissions about this problem.  My problem is the  same 
as most of the responses I have read.  The only significant difference  or at 
least I have not read this in the list of symptoms is that when the  DE-sensing 
occurs ONLY the main receiver is affected.  I can be listening  to the same 
frequency with the sub receiver and the main receiver and the sub  receiver may 
read S-9 on the S-meter but the Main receiver only reads zero or 1  or 2 
s-units.  By bumping the PTT the main receiver will return to  normal.  Absolutely 
no other control or antenna selection affects this  condition.  Only 
momentary transmit will restore it.  I have now  started, at least every time I turn 
the radio on, to set the transmit function  to break-in keying and I set the 
keyer speed to full and hold the "DOT" lever of  the keyer for a couple of 
seconds to create a fast RX/TX condition.   Thinking this might keep the contacts 
of whatever mysterious relay is causing  the problem, clean.
 
Something is working because the problem has disappeared for the last  month. 
 Now after reading the posts I am also disconnecting the antenna  when I shut 
down.
 
Please keep the posts coming on this problem with any new  information.  This 
really concerns me.  This is my first Yeasu since a  FT-101E I owned in the 
late 70's, which was trouble free.
 
Gosh, I have this new technology where I can't fix my own equipment.
 
Sincerely and 73's,  Roger Horton   K8CIX