The AC adaptor included with the SP-404SX (PSB-1U) is not guaranteed to work with the SP-404MK2. Use the AC adaptor included with the SP-404MK2. See also, “What types of power supply are supported?.”
The AC adaptor included with the SP-404SX (PSB-1U) is not guaranteed to work with the SP-404MK2. Use the AC adaptor included with the SP-404MK2. See also, “What types of power supply are supported?.”