Version S/No
7NXXXXX
8NXXXXX
9FXXXXX

VX-5R
VERSIONS 1& 2
7Nxxxxx
8Nxxxxx

1. Remove battery.
   
   
2. Remove the cover for Pressure Sensing Unit [SU-1]. Refer to owner’s manual.
   
   
3. Remove the SU-1 if installed.
   
   
4. Locate the solder pads on back of the transceiver.

Solder pad configuration for USA Mars/Cap mod.
X = not soldered
O = soldered

XXXOOOXX-Factory
XXXXOOXX-Mars/cap
XXXXXXXX-Freeband

VERSION 3
9Fxxxxx

Solder pad configuration for USA Mars/Cap & Freeband mod.
X = not soldered
O = soldered

XXXOOXXX-Factory
XXXXOXXX-Mars/Cap
XXOXOXXX-Freeband

This article can also be found as a PDF file at http://www.users.bigpond.com/vk3xem/mods/vx5rmods.pdf.