Daniel del Solar, 71, a Chilean-American media activist, poet and photographer who headed training for CPB in its early days and later managed countercultural stations in San Francisco and Philadelphia, died Jan. 13 in Oakland, Calif. He had prostate cancer. Del Solar served as director of training and development at CPB in the late 1970s, during a period of active recruitment and training of ethnic-minority professionals. He later became g.m. of San Francisco’s KALW-FM from 1985 to 1992 and of Philadelphia’s WYBE-TV from 1992 to 1995.