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CHAPTER 4 SYSTEM BLOCK DIAGRAM
5.1 PCBA A-Side
J1003 Earphone connector.
bug by damaged.
Earphone no sound
U301 Flash Bug by damaged
Cannot power on, cannot
upgrade software.
U101 CPU Bug by damaged
Cannot power on. No RF
signal. No display or display
abnormality
U401 Power IC Buy
by damaged,
Cannot power on.
No charge in.
Speaker no sound.
U701 BT/WIFI/FM/GPS IC.
Buy by damaged.
BT/WIFI/FM/GPS Not work
J1202 Battery connector
Bug by damaged.Not
power on.
Not charge in
U501 RF IC Bug by
damaged. No signal
Can’t power on.
U602/U603
WCDMA PA
Bug by damage.
No signal.
U605 GSM PA
Bug by damaged.
No signal. Large current
J1203 I/O connector. bug
by damaged.
No charge. Can’t software.
U801 LED Driver IC
Buy by damaged,
LCD don’t light
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...
