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t
~
FROMA4
FLl
466
kHz.
BUFFER
..
AMP
..
"
AGC
456
kHz ...
BUFFER
.
AUDI~
AUDIO
AUDIO
CONTROL-
. .
AMP
. .
DETECTOR
- p
AMP
LED AMP
..
,.
j
DRIVE
AUDIO.
AUDIO
AMP
-.,.
AMP
j~
AU~
AUDIO
AMP
,..
FROM ISBAGC
FROM A4 BFO
FROM A4 AUDIO
465±.8
kHz
'.
Figure 4-8. ISB Functional Block Diagram
",
--..
LINE!
.....
TOA4
CROSSPOINT
SWITCH
TO A4J7
LlNEt
TOA4J7
- p
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