Display Problem
Step
1
Confirm the defect symptom
2
Check the LCD connector (HDC800)
Check the signal or voltage of C804 and C806
3
Notice. It should be measured when the display is
activated on
Check the voltage of C800 and C801
4
Notice. It should be measured when the display is
activated on
5
Replace the LCD
© Samsung Electronics Co., LTD |
Check point
Confidential
Result value
-
Broken, dust, corrosion
Insert status
Normal
If not the correct value
Normal(C804 = high(18V),
C806 = V_BATT)
If not the correct value
Normal(C800 = V_BATT,
C801 = 3.3V)
Solved
Not solved
Defect point
-
LCD connector
(HDC800)
Go to the next step
LED Backlight IC(U802)
Go to the next step
Buck boost Reg.(U800)
Go to the next step
LCD
Main Chip or PBA
37