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Adding an external Mic + headphone jack to the Palm TX PDF Print E-mail
Written by Andreas Böhler   
Tuesday, 20 November 2007 01:00

My brand new Palm TX lacked one very important feature: the microphone! My previous Palm handheld, the T3, had a built-in microphone. Fortunately, I found some people that managed to add microphones either internall or externall, with or without headset jack. 

I decided to design my own schematics that can:


  • Small in size
  • Internal microphone
  • Headset Jack

I had a defective Motorola mobile phone lying around, along with a Motorola Stereo-headset, and decided to disassemble the phone and use the components. I also bought a Palm TX sync-cable off ebay for €1,-.
You can find the needed schematics and my source of information at the following URLs:
Motorola Headset Pinout
Palm TX Connector pinout 
Palm Mic-Mod my Mod is based on

How to assemble the whole circuit is visible in the following pictures:

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Last Updated on Monday, 15 June 2009 09:43
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