MIAMI — Latino Public Broadcasting is holding its seventh annual open call for funding proposals for Latino-themed programs or series.Deadline for indie producers to submit proposals is 5 p.m. June 6. LPB is a nonprofit org funded by the Corp. for Public Broadcasting. Edward James Olmos is chairman of the board. LPB’s 2002 Open Call winner “The Devil’s Miner,” a story of two teenage brothers set in the silver mines of Bolivia, will be showcased at the upcoming Amnesty International Film Festival. Doc will launch the 2005-2006 National Outreach Campaign for the PBS series “Independent Lens” at a May 26 screening at the Director’s Guild of America in Los Angeles.