[Motorola] MSR2000 Questions... One Solved, One To Go!

[Barry Tuttleman]

i have the manual in front of me, but i am definitely not familiar w/ this unit; i'm looking at R1 Audio & Squelch Modules, and under section 2.4 (Audio Amplifier Circuit) it says:

Amplifier U4B provides the necessary drive to the audio power amplifier.  Frequency response shaping is provided by C12 & R20.  Limit adjust R18 is adjusted to limit maximum audio power output to 1 watt.  Drive to the power amplifier is first routed through audio mute gate U4B and volume control R25.  U4B mutes the speaker audio during a MIC PTT signal.

is this what you're looking for?

tnx,
barry
carson city, nv