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WKS1001 / MC154156 / OLD 858pll - No Audio output

Uncle Ray

Member
Oct 26, 2008
2
0
11
Hello Guys.

As above , what does work is...

Receive needle moves.
Does TX with Mod on SSB & AM.
If I inject a signal around the audio chip you can hear it. If I place a finger around chip there IS a hum.
Squelch works ( you can hear it faintly going off and on via the speaker ).
PA works.

The board is pretty much the same as the old 858 radios.

How the problem happend ? Left working all nite , woke this morning to turn the volume up and nothing. No hiss from speaker OR extension speaker.

I am going through the noise blanker section ( hence very slowly ).

Have any of you guys experienced this problem and ( I hate to ask ) is there a quick fix ?

Thank you for reading , please don't be afraid to coment:headbang
 

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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.