Icom IC-R7100 Service Manual

Also see for IC-R7100: Service manual Insrtuction manual Service manual

6·2 PLL ADJUSTMENTMEASUREMENT ADJUSTMENTPOINTADJUSTMENT ADJUSTMENT CONDITIONS VALUEUNIT LOCATION UNIT ADJUST2nd LO 1 • Dtsptayed frequency: 512.000 MHz PLL Co nneet a spectr um Maximum value PLL L36. L37OUTPUT analyzer or RF (More Ihan - a dBm) L3B. L39LEVE L vo lt meter to J5 . L472 • DtspIayed trequency: 511 .9999 MHz Max imum v alue L42 , l44(More Ihan - 3d Bm)Nore : Walt a lew rnin utes after power ON 10 pe rform eaeh adju stmenl.2nd LO 1 • Displayed trequency: 511 .9999 MH z PLL Connee t a f requenc y 768.0000 MHz PL L C69OUTP UT cou nter 10 J S.FREOUE NCY2 • Displayed frequency: 512.0000 MHz 256.0000 MHz Verity±100 HzIF 1 • Displayed l requency: 5 12.0000 MHz Con nect a spec tru m Max imum value L29. L2 5an aly zer or RF (More Ih an - 3dBm ) L26. L27vo ltmeter to CP (L29sld e).DIA ose • Displayed frequency: 512.0000 MHz Conneet a spectrum Maximum vafue - L11 .l1 21FRE OUE NCY analyzer or RF (Mo re Ihan -18dBm)voltmeter la CP (L19- stee) .151 LO 1 • Displayed frequency : 145.0000 MHz Conneet a frequency 923.7000 MHz R35OUTP UT - M_ : FM c ou nte r 10 J4.FREOUENCY2 - Disp lay frequency : 149.9999 MHz 923.6999 MHz R41NOTE : Repe at ste ps 1. and 2 (several times).•6·3 LOCAL OSCILLATOR ADJUSTMENTMEASUREMENT ADJUSTMENTPOINTADJUSTMENT ADJUSTMENT CONDITIONS VALUEUNIT LOCATION UNIT ADJUST3rd LO 1 - Displayed frequency: 145.0000 MH z MAIN Co n nect a trequen cy 10.2450 M Hz MAIN C 132OUTPUT -M ode : USB cou nter 10 R21 7 (C93FRE QUEN CY slde).BFO 1 - Displayed frequency: 145.0000 MHz Conneet a freque ncy 456.5 kHz 114FRE OU ENCY - M_ : USB counter 10 W29.2 453.5 kHz C1Sl6-2