Troubleshooting - Samsung SM-A320F Svc Manual

Troubleshooting

No Power
Step
1 Confirm the defect symptom
* * Analyse reasons of No-Power using the
2
Power & Current test jig Power
Check the Resistance between JIG Power
2.1 V_Battery / VPH_PWR/ V_BAT and Ground.
(C701,C805)
It's possible to enter the download mode?
3
Check if it's rooted.
3.1
4 Try to do the boot recovery.
5 Check the voltage of C5023(=IFPMIC Output)
6 Check the voltage of C5006(=PMIC Output)
** Usage guide of the Power & Current test jig has been uploaded at GSPN. (Power & Current Tester_Rev4_150716.pdf)
Check point
test mode.
- This document cannot be used without Samsung's Authorization -
Result value
-
PASS
Leakage Current fail
Power On Current fail
Normal (Over dozens of KΩ)
Abnormal
Yes
No
Rooted
Normal
Pass
Fail
C5023 = Power supply voltage
If not the correct value
C5006 = 1.8V
If not the correct value
Defect point
-
Battery, Battery terminal,
Physical Key
Go to the step 2.1
Go to the step 3
Go to the step 5
Capacitors for ESD protection
Go to the step 3.1
Go to the step4
OOW
S/W update
Go to the step 3
Go to the step 5
Go to the step 6
Replace the U5003(=IFPMIC)
Go to the step 7
Replace the U5004(=PMIC)
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