Icom IC F121S - Manual (Page 42)

2 - 1
SECTION 2 INSIDE VIEW
Antenna switch/
Low-pass filter circuit
Mixer*
(Q3: 3SK299)
2nd IF filter*
(FI2: ALFYM450F=K)
D/A converter*
(IC6: M62363FP-650C)
IF IC
(IC1: TA31136FN)
1st IF filter
FI1: FL-335 [EUR]
FL-313 [USA],[GEN]
* Located under side of the point.
Final FET module
IC3
: RA30H4452M-21 [25W-H]
: RA30H4047M-21 [25W-L]
: RA45H4452M-21 [45W-H]
: RA45H4047M-21 [45W-L]
CPU 5V regulator*
(IC10: AN78L05M)
8V regulator
(IC9: TA7808F)
VCO circuit
AF amplifier
(IC8: LA4425A)
Reference crystal oscillator*
(X2: CR-741 15.3 MHz)
PLL IC
(IC4: MB15A02PFV-1)