hits ic rf, crystal, vco, tx rx filter

for my discussion is this hits ic rf, crystal, vco, tx rx filter for the things first that is. . .

1. ic rf (radio frequensi)

-untuk type nokia series dct3 found article hagar on the top ic and to series newest found article m jolner or helga,  and position location ic usually membagian middle on pcb hp. his position location is usually border on ic crystal.

-untuk type other usually ic this be to be ic smd (foot kelabang)

literature kerussa ic rf this is usually

-no signal,

-signal weak,

-signal unstable, signal lost tiiba-tiba, power off missionary

(die sewaktu used to telpon)

-power off receive (die sewaktu accept telpon)

-hank

-mati total if found system clock 13mhz.

2. cristal

this component principal function regulates frequency stripe at want for example in hp used stripe 26mhz. for this component location is usually side by side dgn ic rf and this component is usually berplat can.

damage literature crystal this

-no signal

-signal unstable

-restart pd hp

-ponsel die total if this component brokens

3. tx and rx filter

this component functioneds good frequency leakage filters transmit also receive so that produced good frequency.

characteristics tx and rx this is can little box the refraction and majority rust colored and position location usually in part middle in pcb hp.

literature kerusakn he

-suara falter menyaat nelpon

-bisa also cause no signal especially in rx filter 1800.

and last vco (voltage control oscilator).

principal function as generator and radio controlling frequensi.

characteristics vco the can it box berplat has foot under. to type nokia usually found article fdk in part on kompone.

his damage literature

-no signal

-gagal look for network.

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