Operation CHARM: Car repair manuals for everyone.

Setting The Tone

BASS: Press this knob lightly so it extends. Turn the knob to increase or decrease bass.

TREB: Press this knob lightly so it extends. Turn the knob to increase or decrease treble. If a station is weak or noisy, you may want to decrease the treble. Push these knobs back into their stored positions when you're not using them.