_________________________________________________________________
2.3
THEORY
OF
OPERATION
The
audio
panel
contains
three
major
replaceable
assemblies:
•
Main
Board
Assembly
•
Audio
Board
Assembly
•
Front
Panel
Board
Assembly
The
three
major
assemblies
are
shown
in
the
block
diagram
in
Figure
2
‐
2.
Figure
2
‐
2.
GMA
347
Block
Diagram
GMA
347
Maintenance
Manual
Page
2
‐
5
190
‐
00325
‐
02
Rev.
A
