Icom IC-RX7 Service Manual Addendum
Also see for IC-RX7: Price listInstruction manualInstruction manualInstruction manualService manual
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4 - 44-5 VOLTAGE DIAGRAMVoltage from the power supply is routed to the whole of the receiver via the regulators and switches.J51122AFONREGQ2:2SA1588Q11:2SB1201VCC+REGREGQ24:2SC4738CPU3VVP +10V CPU3VAFR3V+3VREGDC-DCBATTERYI C11:TC7W04FU+3V-R3VREGVCCVCCVCCIC3:NJU7775F3Q12:XP1501AFVCCD24-D27:1SS372IC4:NJU7775F32CHARGECONTROL[DC 6V]Q27:HAT1023RD2:SB07-03CD35:MA2S728IC18:BQ24064LOGIC UNIT MAIN UNIT3VREGVCO3V1stVCO UNITLCD backlight (L: DS10–12)AF power AMP (L: IC9)Main power line; RF circuits,1st and 2nd IF circuits, AF circuits,etc.CPU (L: IC7), EEPROM (L: IC14, 15), RESET IC (L: IC6), etc.Tone controller (L: IC19), Reference frequency oscillator (M: X1), PLL IC (1stV: IC3), PLL IC (2ndV: IC1), etc.Padding voltage to the loop filter (1stV), Tuned BPFs (M: D53, 58)1stVCOQ43:2SA1577Q44:2SC4738D54:MA2S111D55:MA2S728CKOR3CPCOND401:RR264MQ26:UNR9213JVCC |
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