Uniden ARU 251 External Controller Modification
By: Skipp www.radiowrench.com

February 2005  


There are two text files included in this package. The file ending in 
.txt is dos ascii text. The file ending with .doc is in MS Word format.  
Both are exact content wise.

One of the available down load zip files contains large .gif files. 
One is a scan of the Uniden internal module wiring, the other a scan 
of the control board circuit. Both have the modification points shown. 

These are very large gif files and take time to download.

There is one small error on the module wiring diagram. The transmit 
modification, push to talk wire lead is drawn over to far to the left 
as shown. The original cut from the control board is the proper lead. 
Follow it down from the control board to clearly show the error. A 
note should be made on your copy, or the error corrected only on the 
diagram. The text modification instructions are correct.

Good luck, please feel free to E-mail me if you have questions.

cheers

skipp

nospam4me@juno.com