Rda 6231 pa signal ic use in many Chaina mobile
phones and its use direct batry volts so this part
falted many times in mobile phones.
if problem in this pa signal ic set go on litle shorted only one
point at external digital power supply or searching mode and
again searching.set cannot register on cell phone opreator services.
some chaina mobile cell phone in setting use gsm switching mode
setting like as nokia x2-02 in network option setting option for exemple
gsm900/1800 if your phones setting not set at auto network seraching
mobile phone network problem created.
first set auto slect these setting and try to power of an power on
cell phone.
at last problem not solved then check antena connected with pcb antena point
perfectly .
full and final if problem same and your phone can not searching mobile phone
opreator network try to remove pa and make these jumper cearfull as picture
shown below.
RDA 6231 PA IC Jumper Diagram
Comments
Post a Comment