Icom IC-FR3000 Series, Service Manual

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2 - 3
• TX UNIT
Top view
*: Located under side of this point.
• RX UNIT
Top view
*: Located under side of this point.
PLL reference
oscillator
12.8 MHz
(X1: CR-759)
PLL IC*
(IC2: MB1511PFV)
TX VCO circuit
Mixer
(IC6: NJM2107F)
D/A converter*
(IC5: M62364FP)
RF amplifier
(Q1: 2SC5337) PLL IC*
(IC4: MB1511PFV)
RX VCO circuit
IF amplifier
(Q3: 2SK1771)
2nd Lo oscillator
31.195 MHz
(X2: CR-757)
IF IC
(IC2: TA31136FN) Noise amplifier
(IC8: NJM2902V) Reference oscillator
12.8 MHz
(X3: CR-732)
1st Mixer
(IC1: GN2011)
Lo amplifier*
(Q8: 2SC4226,
Q9: 2SC4703)