Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
Check the Battery
Is it more than 3.8V?
Change the battery.
Power-on the phone,
is ok?
Check the PWR_KEY
Check the signal of
Check the
32khz?
END
YES
YES
NO
NO
NO
YES
YES
NO
YES
: 20.0us.div (time division)
NO
YES
8-4-1. Power On
Mobile phone does not power on.
Voltage.
check the power-on
sound
or motor Vibration.
(soldering crack, open,
etc)
SYSTSTB= 1.8V
Clock OSC4000
Is the frequency
check the initial operation
Charging the battery by TA.
If its voltage level is extremely low(under 3.0V),
Change the FRONT-LCD ASSY
Resolder or replace TAC5000
Check the output voltage of U4004
(C3020 : 1.15V, C3053 : 1.05V, C4024 : 2.0V, C4033 : 1.8V, C4061 : 3.3V)
If the output voltage is not normal, Change the U4004
※ Each voltage level has ±10% margin.
Replace the OSC4000.
※ Test condition (Oscilloscope setting)
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
Re-download latest
Re Check "8-4-1 Power
Check the OSC4000 (Crack, open etc.)
Check the U4004 (Crack etc)
Change PBA
YES
Abnormal
NO
Change U3006
YES
NO
END
8-4-2. Initial
Initial Failure.
SW on the mobile
phone.
on"
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
No service
Home screen → Phone
G532XXXX or unknown
Check the Main Antenna exists or not.
Replace the OSC1000
YES
Resolder the components
CP : unknown
END
Check menu setting
Change the PBA
NO
NO
YES
8-4-3. No Service
Menu → applications → setting → network connections →
more networks → mobile networks → network mode → setti ng is auto c onnect ?
→ Keypad → *#1234# → check
Phone version → CP :
Check the components of
Antenna Path. Is it ok?
YES
Check OSC1000
Is the frequency = 26Mhz?
YES
CP : G532XXXX
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
YES
YES
NO
END
Is SIM/SD assy
NO
YES
YES
8-4-4. Sim Part
Insert SIM card
Is SIM socket ok?
well connected to
main board?
Check the SIM
Voltage.
C6026 >= 1.8V?
Reassemble SIM/SD assy and still SIM does not
work, replace SIM/SD assy
Change to the new SIM card.
If it doesn`t still work SIM card after changeing
the SIM card, Check the U3006 (Crack etc)
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
TA / USB Insert
Checking Volt at
YES
YES
END
Resolder or
Charging or not
NO
YES
YES
8-4-5. Charging Part
C4067 > 4.4V?
Checking Volt at
C4059 = 3.3V?
Replace U4007
and then Check
- First of all, Please check the battery status.
No
NO
Reconnect TA or USB
Resolder or Replace U4007
Check The IC's around U4007
or
Swap the Main PBA.
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
or in Voice Recording mode
Check the MIC on
any damage
Something Wrong
NO
YES
END
Check the L5004
L5014 = 2.8V
NO
YES
8-4-6. Microphone Part
Check microphone function
in voice call reciever mode
PBA is placed for
soldering status
and Check the
voltage at
Resolder or replace MIC5000
Resolder or replace U4004
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
with maximum volume level.
Check the
Speaker module
Something Wrong
NO
YES
END
YES
8-4-7. Speaker Part
Check speaker function.
connection of
Check the signals
on L5001, L5002
Play MP3
Replace speaker or replace speaker module
NO
Resolder or replace L5001, L5002
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
Something Wrong
NO
END
Check the signals
OK?
YES
8-4-8. Receiver Part
Check receiver function
in voice call receiver mode
Check the receiver
for any damage
on C5014, C5015
YES
Reconnect or Replace receiver module
NO
Resolder or replace C5014, C5015
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Loading...
+ 30 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.