Date: Wed, 31 Oct 2001 20:29:56 -0800
From: KB8QFL 
Subject: Standard C-228A Mod

1 Remove Battery and Antenna.
2 Remove the four battery plate screws.
3 Remove the screws from the back of the radio and separate the 2
halves.
4 Solder a diode in the location shown below.
5 Reset the microprocessor.