Lexicon MRC Version 3.01 Firmware Update Upgrade [Latest OS] [PCM-70]


Lexicon MRC Version 3.01 Firmware Update Upgrade [Latest OS] [PCM-70]

SKU: FW-126 Category: Tags: , ,


Lexicon MRC Version 3.01 Firmware Upgrade

This is firmware update 3.01 and the official released operation system by Lexicon. This operation system update/upgrade requires three eprom and the chips will be labeled to help you locate the correct chip socket. For more info, please check below.

Lexicon MRC Version 3.01 introduction:

The V3.01 MRC Eprom was an update for Version 1 and Version 2 users, which allowed for dedicated control of the Lexicon LXP-1, LXP-5, PCM70, as well as being an awesome all around General Midi Controller for practically any other device. When Version 4.0 was released, support for the Lexicon PCM70 was limited considerably, as the 4.0 software was geared heavily towards use with the LXP-15.

New Features for users upgrading from Version 1.0 or Version 2.0:

Expanded control of the Lexicon LXP-1, LXP-5, PCM70, and GMIDI.

Features for users “downgrading” from Version 4.0:

Dedicated Remote control of the Lexicon PCM70

Which software version is my Lexicon MRC running?

To check your current software version, simply turn on your MRC and the software version will appear briefly during the startup process.


  • The eproms will be verified and packed in anti-static material to ensure a safe shipping.
  • The Lexicon MRC on the picture is not for sale
  • Upgrading from 1.0 or 2.0 may require a light modification for the new decoding. (No worries, I’m also able to provide the necessary modification instructions)