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SEMICONDUCTOR
LEAD
IDENTIFICATION
AND
IC CIRCUIT DIAGRAM
1NTEGRATED
CIRC
UIT LEAD IDENTI FICATION
FM AF
OUT
OPEN
6
I
I
I
I
I
8
_......J
FM
UMIT
OUT
AM IF
AM Voe AM
GND
OUT
~
...I"::\...-
12 --~-~----,
I
I
I
I
I
L
~
-
~-------
7
-
FM GND
FM Vee
FM
aUAO
IN
AM/FM
METER
OUT
AMIF IN
FM
IF IN
I ,,--r=:-,
FM IF DC
FEED 8ACK
FM
AC
GND
2
r-",-"--='--'
FM IF IN
AM IF IN
FM AC GND
AM RF AGC/
FM BIAS
FM IF DC
AM Vee
FEED BACK
..
FM Vee
AM IF AGC
FM GND
AM IF OUT
FM AF OUT
AM AC GND
OUAD IN
AM/FM METER OUT
FM LIMITER
AM GND
OUT
lC1 :(34419A
IC2
TK10420
LoeAL IN
RF IN
X'
TAL ose
GHD
MIXER OUT
AUDIO
MUTE
Vee
SCAN CON TROL
LIMITER
IN
SOUELCH
IN
DE COUPUNG
FILTER
OUT
UMITER OUT
FILTER
I
N
QUAO IN
OETECTOR OUT
IC3
HD140118
2A
0--+---""""
IAo---+-----J
1-+.....- - - - - - - - - - -...
VSS
- 57 -
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