# Audio Altenate configuration

**URL:** <https://mangoh.discourse.group/t/audio-altenate-configuration/3077>\
**Category:** mangOH Red\
**Created:** [November 20, 2019, 6:25pm UTC](https://mangoh.discourse.group/t/audio-altenate-configuration/3077 "2019-11-20T18:25:35Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![AE\_1](https://avatars.discourse-cdn.com/v4/letter/a/a88e57/32.png) [@AE\_1](https://mangoh.discourse.group/u/AE_1)\
**Post date:** [November 20, 2019, 6:25pm UTC](https://mangoh.discourse.group/t/audio-altenate-configuration/3077/1 "2019-11-20T18:25:35Z")

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Dear all,

on mangOH Red, we have to test audio i2S using IoT Connector#0.  
On the Developer Page 18 is mentioned that to get audio to IoT Connector#0 is necessary to solder R520.  
On the shematic r520 is connectd to EN pin which en/disables the whole chip U502.  
What is wrong?