Icom IC-4008A - Group Mode and CTCSS; Setting Group Code for CTCSS

SECTION 2 INSIDE VIEWS
2 - 1
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MAIN UNIT
•
RF UNIT
T+3 Regurator
(Q28: 2SB798)
+3 Regurator
(IC6: S-81230SG)
R+3 Regurator
(Q18: 2SA1586)
CPU
(IC1: µPD753036GK)
Audio amplifier
(IC9: NJM2070M)
EEPROM
(IC3: X24C01AS)
TOP VEIW BOTTOM VEIW
1st mixer
(Q2: 2SC4226)
PLL IC
(IC1: TB31202FN)
2nd IF filter
(Fl3: CFWM450E)
1st IF amplifier
(Q1: 2SC4215)
FM IF IC
(IC2: TA31136FN)
Reference oscilletor
(X1: CR-633 21.25 MHz)
VCO circuit
RF amplifier
(Q3: 2SC5194)
1st IF filter
(Fl2: FL-298)
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