Where can I find a replacement LED board "CSX-B105-LED_V5R2"

Where can I find a replacement LED board "CSX-B105-LED_V5R2"
The headphones work but the LEDs that indicate how much battery is left do not come on. I see the part is easily replaced (two screws and a ribbon cable) just like the battery but I can’t seem to find the part.

ANSWERS: