The replacement bulb for this style of radio (backlit LCD display) can be very difficult to find, but here are 2 types that will work. The 74 has a smaller bulb globe, but the base is the same. Either will work, but the 24 seems slightly brighter.
No tools are needed to open the radio case - just pop the REAR of the top up, twist the bulb holder out of the reflector, & pull the bulb straight out.
