Icom IC-A20MK II Service Manual page 5

SECTION 2 INSIDE VIEWS
е VOR UNIT * MAIN UNIT
ALC microphone amp
(1C1001: ЦРС1ЗІЗНА)
30 Hz amp circuit
(1С4003: uPC358G2)
AF power amp
(1C1006: TA7368P)
Comparator
(1C4004: LA6393M)
| а. М Ceramic filter
10 kHz amp circuit — —, = A
= (FI1001: CFUM455D)
—Discriminator
FM detector ] 1
(X1002: CDBM455C 16)
(IC4002: LA6393M)
(X1001: CR-190 35.345 MHz)
2nd mixer
(1С1004: MC3372P)
Lithium backup battery
(BT1001: BR2325-1HC)
* RF UNIT
Power amp circuit
T
Drive amp circuit 55, E
Antenna switching circuit
RX RF circit
AM modulator circuit
1st mixer
(Q2003: 28K302 Y)
1st IF filter
(FI2001: FL-98 35M20B)
PLL circuit
Reference crystal