Randell RANFG IC-5 Specifikace

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4 - 4LINE DESCRIPTIONVCCThe voltage from the attached battery pack.CPU5Common 5 V for the CPU (IC8) converted from the VCC line at the CPU5 regulator

PINNUMBERPORTNAMEDESCRIPTION70 PLLSTB Outputs PLL strobe signal.71 AFONOutputs AF regulator (Q15, Q16) control signal. HIGH : While emitting audio72

4 - 6LinearCODECBufferIC253BBufferIC251ABufferIC251BIC50IC151Q305, Q306IC351-"232C_RX" signal to the J301, pin 25-"232C_TX" signal

5 - 1EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGEDC power supplies*Output voltage : 5.0 V DC 8.0 V DC

5 - 2ADJUSTMENT ADJUSTMENT CONDITIONOPERATIONENTERING ADJUSTMENT MODE• While pushing [], [] and [D•CLR] keys, turn power ON.REFERENCE FREQUENCY1• •

5 - 3ADJUSTMENT ADJUSTMENT CONDITIONOPERATIONSENSITIVITY1 • Connect an SSG to the antenna connector and set as; Frequency : 136.020 MHz Leve

5 - 4ADJUSTMENT ADJUSTMENT CONDITIONOPERATIONENTERINGADJUSTMENTMODE• Connect the pin 14 of J301 to GND to enter the adjustment mode.CODECFREQUENCY1 •

6 - 1SECTION 6 PARTS LISTM.=Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side)[MAIN UNIT] REF ORDER DESCRIPTION M. H/V NO. NO

S.=Surface mount6 - 2M.=Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side)[MAIN UNIT] REF ORDER DESCRIPTION M. H/V NO. NO.

S.=Surface mount6 - 3M.=Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side)[MAIN UNIT] REF ORDER DESCRIPTION M. H/V NO. NO.

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S.=Surface mount6 - 4M.=Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side)[MAIN UNIT] REF ORDER DESCRIPTION M. H/V NO. NO.

S.=Surface mount6 - 5M.=Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side) REF ORDER DESCRIPTION M. H/V NO. NO. LOCATIONIC

7 - 1SECTION 7 MECHANICAL PARTS AND DISASSEMBLYScrew abbreviationsB0, BT: Self-tapping PH: Pan headNI-ZU: Nickel-Zinc ZK: BlackREF. NO. ORDER NO

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SECTION 8 SEMICONDUCTOR INFORMATION•TRANSISTORS AND FETS •DIODESAC3SK299-U73(Symbol: U73)2SK1069-4(Symbol: FJ)GGXP6501-AB(Symbol: 5N) B1E1C2C1B2E213

H5 H10 H15 H20 H25 H30 H35 H40 H45 H50 H55 H60 H65 H70 H75 H80 H85 H90 H95 H100 H105 H110 H115 H120 H125H0V5V10V15V0V25V30V35V20V45V40SPEAKERW5SP112

H125 H120 H115 H110 H105 H100 H95 H90 H85 H80 H75 H70 H65 H60 H55 H50 H45 H40 H35 H30 H25 H20 H15 H10 H5 H0V5V10V15V0V25V30V35V20V45V40MC1MICROPHONEMI

10 - 1SECTION 10 BLOCK DIAGRAM• MAIN UNITTXCCSHIFTLEDCANTENNALPFLPFX3BPFAMPBPFBPFANTSWTX/RXSWRFAMPPWRAMPDRIVEPREBUFFBUFFLOAMPIFAMPAPCCTRLFILLOOPDCAMP

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11 - 2VCCQ53XP4601123456C2490.01R32668kR31868kR31968kR32015kC3730.0068C3700.0018C3690.033R327100kR32310kR336100kR3241.2kR32568kC3720.022C3740.0022CTCI

TABLE OF CONTENTSSECTION 1 SPECIFICATIONSSECTION 2 INSIDE VIEWSSECTION 3 DISASSEMBLY INSTRUCTIONS SECTION 4 CIRCUIT DESCRIPTION 4 - 1 R

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12 - 2BECBECE1C2B1C1E2B22SA1586 GR DTC144EUA T106 XP4312 (Symbol: SG) (Symbol: 26_) (Symbol: 7T)ACACMA2S111MA2S728(Symbol: A) (Symbol: B)12-2 UT-118

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1 - 1 SECTION 1 SPECIFICATIONS GENERAL• Frequency range : TXRX144.000–148.000 MHz144.000–146.000 MHz136.000–174.000 MHz*136.000–174.000 MHz*144.000–

2 - 1SECTION 2 INSIDE VIEWS• MAIN UNITPower amplifier(Q1: RD12MVS1)Pre-emphasis circuit(IC3: LMV324IPWR)RF amplifier(Q12: 3SK318YB)1st IF mixer(Q13:

3 - 1SECTION 3 DISASSEMBLY INSTRUCTIONS1. Removing the chassis panelq Remove the knob A and jack cap B.w Unscrew 1 nut C.e Unscrew 2 screws D (2 ×

4 - 1 SECTION 4 CIRCUIT DESCRIPTION• 2ND IF AND DEMODULATOR CIRCUITSMixer16LimiterAMP45.9 MHz 2nd LO signalIC2 TA31136FN1st IF signal from the IF am

4 - 2• APC CIRCUITS4-1-6 SQUELCH CIRCUITSquelch circuit mutes AF output signal when no signals are received.A portion of the AF signals from the FM IF

4 - 3• PLL CIRCUITS4-3 PLL CIRCUITS4-3-1 GENERALPLL circuits control the VCO circuit. IC19 is a PLL IC and contains prescaler, programmable counter, p