GRG H22VL CDM8240N Dispenser Control Board YT2.503.0441PCB 301010729 The 301010729 / YT2.503.0441PCB GRG Dispenser Control Board is an electronic control board used in the CDM8240N cash dispenser of GRG H22VL ATM systems. As the control center of the dispenser electronics, this PCB supports communication and control between the cash dispensing mechanism and the ATM system. It is an important replacement part for CDM8240N dispenser repair, maintenance, and refurbishment .