Aside from a few periods of underway training, which included her annual missile-firing exercises in late February, the warship spent the first three months of 1969 preparing for an extensive overhaul. Entering the Long Beach Naval Shipyard on 27 March, "Berkeley" received new weapons and communications systems as well as a general rehabilitation of all internal spaces in the warship. With this work completed, the guided-missile destroyer commenced sea trials and post-overhaul refresher training on 24 July. The warship also tested her new Standard missile system in September before turning to preparations for another Far East deployment which took up the remainder of the year.