In a wrenching effort to get its once untouchable television manufacturing business into the black again, Sony announced on Monday that it plans to split the business into three divisions. One would focus on the current manufacture of its LCD television sets; a second would focus on outsourcing parts production and assembly, and the third would be devoted to developing the next generation of TV sets. The announcement comes just days before Sony is due to announce results for the July-September quarter, which analysts are expecting to fall short of its profit outlook.