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Installing Echo

dkunesch

Member
Sep 10, 2008
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My 29LTD classic is finally dead, I am taking the echo board I had installed out to put it in my Uniden PC78LTW. I have 2 brown wires from the board for audio. 1 connects to pin# 2 on the mic connector and the other is soldered directly to the circuit board. Does anyone know where this wire should connect?
 
Last edited:

My 29LTD classic is finally dead, I am taking the echo board I had installed out to put it in my Uniden PC78LTW. I have 2 brown wires from the board for audio. 1 connects to pin# 2 on the mic connector and the other is soldered directly to the circuit board. Does anyone know where this wire should connect?

The way echo boards work is pretty simple, it's basically "daisy chaining" the echo board in-line with the audio input. The wire that was soldered to pin 2, needs to be wired to the audio pin and the wire from the audio pin needs to be wired to the other brown wire. basically, you are putting the echo board in-line with the audio input of the unit.

Any problems you can email me at Dodgem250@somd.net

BUMP-BUMP!
Dodgem
 

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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
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    Wes, it's better if you start a thread on the main forum, more people are going to see your question.
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