[1000mp] Mark V problems ! odd ?

[morris wideman]

Hello
Looking at the service manual for my 1000mp it is a complicated path with many relays between the TX or RX and ant. I would not transmit again as it sounds like your feeding TX RF right back into the RX CKT which has or could do more damage. You may have had a lightning surge or hit and welded the relays shut in RX and with the many relays and such in these units it will be a major undertaking to follow the path of things to check. You may want to send that one off for repairs. But you would certainly need a manual.
Good Luck
Morris WA4MIT

----- Original Message -----
From: kf4toh at aol.com
To: 1000mp at mailman.qth.net
Subject: [1000mp] Mark V  problems !  odd ?
Date: Sat, 3 Dec 2005 15:08:29 EST

> 
> 
>         this is an odd one.
> 
>      This weekend I got to turn on the MK V after about a 6 month
>     layoff of radio playing ........doing honey do's!
> 
>     The MK V  is NOW not working right.  hi SWR  readings from the radio SWR
>    meter  ON ALL BANDS. even into a dummy load.
> 
>       And the ATT  switch only works  at zero. if i turn the ATT  to any
>    slot but zero the rec goes dead. not muted audio  more like
>     i pulled the coax off   so guessing the ATT  pads shorted or open?
> 
>      And the SWR readings will change from bad to worst according to
>      which position the ATT knob is switched too?  some how shorting
>      the trans out ?
> 
>        I guess I need a service manual!   any ideas out there ?
>         Joe  kf4toh
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