Icom IC-756PROIII Service Manual

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Reference frequency oscillator (X52: CR-338 32.00056MHz)
RF-B unit BPF-A board
PLL unit 1LO PLL IC
(IC381, IC681: LMX2306TM) VCO-B circuit VCO-A circuit S2LO PLL IC (IC901: LC7153M) 1LO DDS IC (IC101, IC401: SC-1246A) 3LO/S3LO DDS IC (IC701, IC801: SC-1287) MAIN-A unit
Noise blanker circuit
LCD contorller
(IC3551: S1D13504F00A000) MAIN CPU (IC3501: HD64F2375F20)
TX 3rd mixer
(IC221: NJM1496V)
RX 3rd mixer
(IC151: TC4W53FU)
DSP-A board
PREAMP board TX 1st mixer
(D1451: HSB88WS) FM IF IC (IC2001: TA3116FN) RX 1st mixer circuit RX 2nd mixer (D1752: HSB88WS) TX 2nd mixer (D1852: HSB88WS)
Reference frequency oscillator (X52: CR-338. 32.00056MHz)
RF-B unit BPF-A board
PLL unit 1LO PLL IC (IC381, IC681: LMX2306TM) VCO-B circuit VCO-A circuit S2LO PLL IC (IC901: LC7153M) 1LO DDS IC (IC101, IC401: SC-1246A) 3LO/S3LO DDS IC (IC701, IC801: SC-1287) MAIN-A unit
Noise blanker circuit
LCD contorller (IC3551: S1D13504F00A000) MAIN CPU (IC3501: HD64F2375F20)
TX 3rd mixer (IC221: NJM1496V)
RX 3rd mixer (IC151: TC4W53FU)
DSP-A board
PREAMP board TX 1st mixer (D1451: HSB88WS) FM IF IC (IC2001: TA3116FN) RX 1st mixer circuit RX 2nd mixer (D1752: HSB88WS) TX 2nd mixer (D1852: HSB88WS)

Icom IC-756PROIII Specifications

General

Brand	Icom
Model	IC-756PROIII
Category	Transceiver
Language	English