If Unit - Icom IC-R7000 Service Manual

7-4 IF UNIT
IC
IC1
BA401
(LIMITER AMP.)
g
IN BIAS GND OUT Vee
IC2 TA7303P
(FM IF AMP., DET.)
C,J
l!l l!l l!J l!l
If)
l!l 1!11
IF IN
METER GND DET
Vee
(H)
IF IN
MUTE
FIL IN
AF
(L)
OUT
OUT
IC3
µPC1037H
c
(DOUBLE-BALANCED MIXER)
I
Ii] Ii] El liJ Iii
w
Vee OUT1 OUT2
GND SIGNAL
CARRIER
IN BYPASS
IN
IC4, IC5
µPC577H
(FM IF AM PLI Fl ER)
~~l:Jtjl:J~~
~Xss t~w
OUT Vee
IN
GND BY
HIGH PASS
IC& NJM4558D
(LOW NOISE DUAL OPERATIONAL AMPLIFIER)
mmllilm
v~ LI
+
0 -
GND
UJ
Ill
~
UJ