Samsung GT-S7230E - Hardware Troubleshooting Flowcharts

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Level
3
Repair
8-4
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Check the power
VAMP1_3.0V
(
C436)
VANLG1_3.0V
(
C441)
VDD_1.2V
(
C426)
VUSB_3.3V_NVM
(
C434)
VDDORF2_2.5V
(
C432)
VCORE_1.2V
(
C415)
VBBD_2.9V
(
C440)
VMEM_1.8V
(
C416)
VSIM_3.0V
(
C424)
VDDAUX1_2.9V
(
C439)
VANLG2_3.0V
(
C430)
8-3-1.
Power On
Put more lead soler
each terminal
inner clock problem.
Put more lead solder
each terminal
1.
Charge the Battery
.
2.
If
0
V, put more lead
@
C606, C608
NO
NO
YES
Check the
V
BAT Voltage
@
C606 or C608
>=3.3V
YES
NO
Download binary again
NO
Current consumption
>= 100
mA
?
NO
YES
END
Is the soldered status of
KEY701(ON KEY) O.K?
YES
1.
Put more lead each terminal
2.
Replace KEY701
NO
YES
YES
Is It power turned on?
YES
NO
Back to
previous step
If you
#1
try and fail,
do
#2!!!
Replace Board(PBA)
"
Power On
"
does not work
power management problem.
Put more lead solder
each terminal
Check the OSC400
(
C406,410)=
32.768
KHz
?
Check the TCX100
@
C153=26MHz
?