4046 is phase-lock loop with oscillator it is not a digital logic chip which can be tested with logic gate tester. It needs a special tester which can be assembled using chip datasheet.
Every digital logic chip tester tests the chip functionality. Problems with chip are always internal chip problems thus talking about pin problem make no sense. Chip may not respond correctly on signal connected to a specific pin but it is not a pin problem.
4046 is a complicated chip and can not be tested by simply applying a voltage to a pin. It has few different phase comparators, oscillator and more.