Find Rx .tx Signles easyyy


HOW TO FIND RX .TX SIGNLES .


It is tasted and also you can test it.


1 step is* we need to find GND from phone.


2 step is* we should power on phone (operation with dead phone:


phone must be 100% dead by software)and take multimater put it to voltage.


3 multimeter (-) line put it GND and with (+) line check each connectors


* and usually Tx= 1.8v or 2.8v and Rx=1.7v or 2.7v


(it will be change by processor but strongly 1.7v or 2.8v not 3v or 4v)


This way is too easy and you will save a more time.


For example!


You have got new brand China miracle phone with USB cable. It has got


12 pin. You must find (Infinity team give good Idea 1.2.3 punkts):


1) GND usually it has got 2 GND. (now we have got 10 pins)


2) We will uncheck USB + and USB- (VSS) just with checking by USB cable (now we have 8 pins)


3) By USB cable we also uncheck V bat+* ac adaptor + polarization (now we have 7 pins)


4) Now from this 7 pins you will find 1 or 3 not used pins (last operation we have 3 or 6 pins to find Rx Tx signals)


5) Now at last operation you should use good multimeter just to find Rx Tx with 1.7v-2.7v or 1.8v-2.8v


6) WHEN PHONE IS POWERD OFF TX AND GND WITH MULTIMETER MAKING BEEEEEP


(DIOD TEST OPERATION)* WHEN PHONE POWERED ON IT WILL SHOW LIKE DIOD


RESISTANS 600-700 OHM BETWIN TX AND GND.


I think I have give for every body more information’s. Just try to


find. If you find 2-3 phone signals and you will be profi mobile Tx and


Rx signals finder.

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