Phase diagrams of the quasibinary systems Cu 1.95 (Ag 2)Te-ZnTe, Cu 1.95 (Ag 2)Te-CdTe and the vertical sections Cu 1.95 (Ag 2)Te-Zn x Cd 1-x Te (х = 0.2, 0.4, 0.6 and 0.8) have been constructed using methods of physico-chemical analysis. The liquidus surfaces of the quasiternary systems Cu 1.95 Te-ZnTe-CdTe and Ag 2 Te-ZnTe-CdTe have been determined based on experimental data. Both liquidus surfaces include two fields of primary crystallization, corresponding to Zn x Cd 1-x Te solid solutions and copper or silver telluride.