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Poor ft847 receive 10m repair

nfsus

Yeah its turned off, touch it
May 9, 2011
591
311
73
49
Arkansas
I’ve been fooling with a yaesu that’s been giving me fits over the receive sensitivity. It only affected the 10, 12, 17 bands. It still had rx but unless I ran the preamp it was super low. Figured I had blown it. Instead of looking into it I felt super lazy because I figured it was all smd. Priced sending it off and it just wasn’t worth it to me.

Grabbed my schematic and tore the cover off. Look at that, the front end diode pair had one of them blown. And that board wasnt smd after all. Should’ve looked at it sooner. Threw in a new diode and bam.

Note to self, stop being lazy
 

Nice. Eventually I'll get my 847 out of the basement storage tote and back in the shack. :) I was looking for a Kenwood TS-2000, but ended up with this one when one of the local clubs was selling off stuff from a SK.
 

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  • @ heartbreaker3473:
    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
  • @ AudioShockwav:
    Wes, it's better if you start a thread on the main forum, more people are going to see your question.
  • @ heartbreaker3473:
    Okay, sorry, will put in a forum
  • @ heartbreaker3473:
    I put it in the general disscution help area and started a new thread. Thank you for letting me know.