25
/
43
CANNOT POWER ON-LARGE CURRENT
Check if the phone
leakage (current 0mA is
normal)
Check and replace
RF IC, BT IC, WiFi
IC, FM IC, CPU
END
Check and
replace RF PA,
Audio PA, PM IC
Check if the
capacitance,
varistor, LDO tube
leakage
Use the touch
method to check and
replace the heat
spare parts
Make the phone connect the power
supply and then press power key
find large current make the phone
heat
Содержание STUDIO 5.0 HD LTE
Страница 1: ...1 43 BLU STUDIO 5 0 HD Service Manual...
Страница 8: ...8 43 Finished Remove the LCD 19...
Страница 12: ...12 43 Finished Fasten the 10 screws 19 Install the battery cover 20...
Страница 15: ...15 43 Side A layout Side B layout...
Страница 17: ...17 43 5 2 Baseband CPU circuit introduction for power supply CPU power supply part...
Страница 18: ...18 43 5 3 Introduction for baseband chip CPU signal output part circuit...
Страница 22: ...22 43 SKY7775XX POWER AMPLIFIER MODULE FOR CDMA WCDMA HSDPA HSUPA HSPA LTE DAND...
Страница 24: ...24 43 MT6323 power manage supply output...
Страница 29: ...29 43 SIM CIRCUIT SIM1 SIM2 From power IC From power IC From power IC From power IC Power IC SIMLVS...
Страница 33: ...33 43 Speaker circuit To speaker From power IC Audio detector Audio PA IC...
Страница 35: ...35 43 Receiver circuit From power IC Receiver Main related component BBIC U101 power IC U401 receiver...
Страница 37: ...37 43 Microphone circuit Main related component BBIC U101 power IC U401 microphone To microphone From power IC...