User Manual

SGD-SB2025NT-TUM, Part 1
Jan 12 Page 51 ALIGNMENT & TESTING
7. Adjust the mute level potentiometer, RV6, until the mute opens then wind it back until it just
closes.
New Motherboards (PCB Rev >R), have a new software digital controlled mute function. This
provides the user with the ability to program the SB2025NT with three different mute settings.
These setting can be changed on the fly by a PC when connected via RS232. These controls are
located within MxTools Configuration screen, under Mute/Squelch settings tab. They are named
as ‘NORMAL’, ‘User Preset 1’ and ‘User Preset 2’. Please see MxTools help screen for further
assistance in setting these presets.