0000950152-99-005565 DEF 14A 1 19990727 19990628 PIONEER STANDARD ELECTRONICS INC 0000078749 5065 340907152 OH 0331 DEF 14A 34 000-05734 99653622 4800 E 131ST ST CLEVELAND OH 44105 2165873600 4800 E 131ST ST CLEVELAND OH 44105 DEF 14A 1 000095015299005565-001-seq1-def-14a.txt PIONEER-STANDARD ELECTRONICS, INC. DEF 14A