CDMA mobile phone production process CDMA mobile phone production process [pic] CDMA mobile phone production process flow chart 1. Assembly After the CDMA mobile phone PBA is cut, it undergoes visual inspection by the operator, welding the MIC and other processes, and finally assembles the whole machine and puts it into the screw machine. 2. AUTOCDMA engineering The parameter adjustment of the mobile phone is mainly to meet the technical standard requirements through the adjustment of the mobile phone\'s transmission, reception and intermediate frequency parameters to meet the use of the basic functions of the mobile phone. AUTO test items: 1. H/W write. 2. IMT Frequency TrackingAdjust: that is, one frequency, adjust the Lolacl value; center frequency (referring to the value of LO). 3. IMT SetpowerAdjust(Low): Transmit power level adjustment, three different transmit powers under the same channel (Max.Avg.Min). 4. IMT Setpower Adjust(HIGH): Channel power adjustment, the transmit power of multiple channels under the same power. 5. RX Rssi Adjust mobile phone receiving sensitivity adjustment. 6. Low BATT ADJ: Adjust the voltage size of the alarm. 7. During the production process, in order to facilitate the testing and maintenance of mobile phones, the card reading function (D isable) will be turned on for the mobile phone during adjustment, so that the mobile phone can search the network without using the card. After FER TEST, the card reading function (Enable) will be turned off. 3. USB TEST: After the mobile phone uses the USB circuit design, it can establish communication with the computer and download data. 4. GPS test: GPS refers to the global satellite positioning system, which mainly simulates satellites to find the specific location of the mobile phone. 5. Charging test: Test whether the current value of the mobile phone in the charging state remains within the technical standard value. 6. Camera test 7. Call test: Under the specified parameters, test whether the basic functions of the mobile phone and the base station are normal. 8. AGING engineering: Mainly aging test, test whether the basic functions of the mobile phone are normal under high temperature. 9. FINAL ...
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