GE MASTER Progress 4ER42E10-33 Maintenance Manual page 48

1 & SQUELCH BOARD A 4 2 6 ( 1 9 D 4 1 3 1 2 9 - 6 3 )
v . B
-
T o
c o n t r o l
m o r e c l o s e l y t h e s q u e l c h c o n t r o l r o t a t i o n . C h a n g e d R 4 8 .
v . C
-
T o e l i m i n a t e b a r e l y a u d i b l e s q u e l c h s w i t c h i n g t r a n s i e n t s
and t o
r e d u c e
re-
c e i v e r s q u e l c h t a i l . D e l e t e d C 3 8 , C 4 9 , C R 7 , C R 8 , R 6 2 , R 7 5 and R 7 6 . A d d e d
C 5 5 , R 8 0 , R 8 1 ,
and
R 8 2 . C h a n g e d C 2 7 , C 3 6 , R 5 3 , R 6 4
and
R 7 7 .
OUTLINE DIAGRAM WAS:
IF-AUDIO 8 SQUELCH BOARD
SCHEMATIC D I AGRAbl WAS :
D.C. AMP
AUDIO AMP
a9
-a10
a
06
-
-
AUDIO DRIVER