# Mapping LEDs on APC 40 with Traktor Pro **URL:** \ **Category:** Hardware: Controllers, Mods and Gear\ **Tags:** apc40, led, traktorpro, mapping, midi\ **Created:** [November 4, 2010, 12:04am UTC](https://forum.djtechtools.com/t/mapping-leds-on-apc-40-with-traktor-pro/15523 "2010-11-04T00:04:24Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![soundchaser](https://avatars.discourse-cdn.com/v4/letter/s/48db29/32.png) [@soundchaser](https://forum.djtechtools.com/u/soundchaser)\ **Post date:** [November 4, 2010, 12:04am UTC](https://forum.djtechtools.com/t/mapping-leds-on-apc-40-with-traktor-pro/15523/1 "2010-11-04T00:04:24Z")
**Mapping LEDs on APC 40 with Traktor Pro** Hi im new to the forum and also new to midi mapping… i am using traktor pro I have 2 kontrol x1’s and an APC 40 im using the x1’s as decks more or less and the APC40 as a mixer… I haven’t had a hard time mapping my knobs for EQ’s or the volume faders for the 4 decks… what i am having a hard time with is getting the LEDs on the 8x5 clip launch grid to light up after they are mapped😕… i was wondering if anyone has ANY advice or an in depth description on how to get the LEDs to work on my APC40 with Traktor Pro THANKS ALL ---
**Author:** ![padi\_04](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/padi_04/32/56291_2.png) [@padi\_04](https://forum.djtechtools.com/u/padi_04)\ **Post date:** [November 4, 2010, 7:39pm UTC](https://forum.djtechtools.com/t/mapping-leds-on-apc-40-with-traktor-pro/15523/2 "2010-11-04T19:39:55Z")
use the search box, there is plenty of info about it