Prestigio PMP7170B3GCE, Service Manual And Technical Manual, Page: 25 / 41

Troubleshooting 11 : WIFI/BT/GPS/FM TX/FM RX problem
1.If WIFI/BT without funtion:
a. check U0901 if working well.
b. check if WF_PA_VDD (C0911) is 1.6V.if not ,check U0904
c. check if wifi antenna is connect well.
2.If GPS without funtion
a. check U0901 if working well
b. check if GPS antenna is connect well.
c. check U0905,C0907,C0921,U0903, R1052, C1036.
3.If FM TX/RX without funtion
a. check earphone connect well(if RX is no function)
d. check usb cable connect well(if Tx is no function)
c. check U0904, L0946, C0956,L0904