Icom PMR446 Service Manual page 5

SECTION 2
•
MAIN UNIT
R+3 Current amplifier
(Q18: 2SA1586)
+3 Regurator
(IC6: S-81230SG)
•
RF UNIT
TOP VIEW
1st mixer
(Q2: 3SK284)
INSIDE VIEWS
TOP VIEW
AF amplifier
(IC9: NJM2070M)
T+3 Current amplifier
Q27: 2SC4081
Q28: 2SB798
Q101: UMZ1N
D5: 1SS355
PLL IC
(IC1: µPD3140GS)
BOTTOM VIEW
BOTTOM VIEW
Reference oscilletor FM IF IC
(X1: CR-669 21.25MHz) (IC2: TA31136FN)
VCO circuit
RF amplifier
(Q3: 2SC4226)
2 - 1
EEPROM
(IC3: AT24C02N)
CPU
(IC1: µPD753036GK)
1st IF amplifier
(Q1: 2SC4215)
1st IF filter
(FI2: FL-297)
2nd IF filter
(FI3: CFWN450G)