GE MASTER Progress 4ER42E10-33 Maintenance Manual page 45

I F AUDIO & SQUELCH BOARD A 4 2 6 ( 1 9 D 4 1 3 1 2 9 - 6 3 )
R e v . A
-
T o m a k e I F A u d i o & S q u e l c h b o a r d c o m p a t i b l e w i t h n e w PA
s q u e l c h o p e r a t i o n . D e l e t e d C 2 4 , C 2 8 , C 2 9 , C 4 2 , C 4 3 , R3:
C 4 9 - C 5 4 . C R 8 . R 7 5 - R 7 9 a n d R T 3 . C h a n g e d C 2 1 . C 2 6 . C 3 7 .
I
-
, - ,
R 4 2 , ~ 4 8 , ~ 5 3 a n d R 6 2 .
O u t l i n e D i a g r a m Was:
IF-AUDIO & SQUELCH BOARD
A 4 2 6
7 -
R
S c h e m a t i c D i a g r a m W a s :
I F AUDIO & SQUELCH BOARD
A 4 2 6
D.C. AMP
Q 9 - 9 1 0
AUDIO AMP
Q 6
T
AUDIO DRIVER
Q7