Icom IC-756PROII - Circuit Description; Receiver Circuit; Rf Switching Circuit; Pre-Amplifier Circuits

SECTION 2 INSIDE VIEWS
2 - 1
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Fan control circuit
PA unit Fan FILTER-A unit TUNER-A unit Antenna tuner CPU
(IC5: M38022M2-138FP)
Drive amplifier
Voltage regulator Common filter
(L501: LR-386) Common filter (L502: LR-386) CTRL-A unit Current transformer (L1: LR-364) C-MOS IC (IC14: TC74AC04F) Fan control circuit Q10, Q11: 2SC4081×2
Q12, Q13: 2SB1201×2
PA unit Cooling fan FILTER-A unit TUNER-A unit Antenna tuner CPU (IC5: M38022M2-138FP)
Drive amplifier circuit (Q2, Q3: 2SC1972×2) Voltage regulator IC1: TA7805F IC2: TA7805S IC3: TA78T08C Common filter (L501: LR-386) Common filter (L502: LR-386) CTRL-A unit Current transformer (L1: LR-364) C-MOS IC (IC14: TC74AC04F)
Power amplifier (Q4, Q5: 2SC5125×2) Power amplifiers (Q4, Q5: 2SC5125×2)