- 26 Nov 2018
How do I adjust the volume on the 4135-14-2 sound board?
If you're referring to an LGB brand 4135 Sound Box Car, then there's a small round control knob on the inside circuit board. If you can't reach it, you'll need to remove the car's roof by pulling it up and off at one of the corners...….there's a snap tag at each corner of the roof. See the attached LGB Instruction booklet.How do I adjust the volume on the 4135-14-2 sound board?