32
/
43
NO/LOW SOUND FROM SPEAKER
Set the phone as
normal mode
Turn on the speaker,
measure the wave
signal by oscillograph
No sound or noise
Remove the speaker and
measure with multimeter
to see if there’s any
sound.
Replace speaker.
The phone is in
Silent mode
.
Check and replace
FPC is ok or not.
Replace FPC
.
Replace power IC or
MT6582
Yes
NO
NO
NO
Summary of Contents for STUDIO 5.0 HD LTE
Page 1: ...1 43 BLU STUDIO 5 0 HD Service Manual...
Page 8: ...8 43 Finished Remove the LCD 19...
Page 12: ...12 43 Finished Fasten the 10 screws 19 Install the battery cover 20...
Page 15: ...15 43 Side A layout Side B layout...
Page 17: ...17 43 5 2 Baseband CPU circuit introduction for power supply CPU power supply part...
Page 18: ...18 43 5 3 Introduction for baseband chip CPU signal output part circuit...
Page 22: ...22 43 SKY7775XX POWER AMPLIFIER MODULE FOR CDMA WCDMA HSDPA HSUPA HSPA LTE DAND...
Page 24: ...24 43 MT6323 power manage supply output...
Page 33: ...33 43 Speaker circuit To speaker From power IC Audio detector Audio PA IC...
