Sunset Riders repair log #2

Got this Sunset Riders PCB for a repair:

Gameplay and graphics were OK but music was accelerated and distorted:

Music is generated by the YM2151 sound synthesis chip widely used in many arcade systems:

For first I checked its clock input pin and measured frequency was fine (3.579 MHz)  :

When I piggybacked a good chip on it correct music tempo was restored:

Replacing the chip fixed the issue completely.