Lcd Display; No Display On Screen After Power-On - Lenovo A516 Service Manual

Repair Manual of Lenovo A516 Mobile Phone

3.1 LCD display

3.1.1

No display on screen after power-on

White screen or blank screen without display; backlight
Check whether the connection of LCD FPC is
good and re-assembled FPC phone is normal
Check whether the display is normal after
replacing LCD,
Check whether the EMI device E1601,E1602,
E1603 of LCD circuit on main board is welded
incompletely; re-weld EMI device
Check whether there is cold solder joint on other
device around LCD and on LCD connector.
with lighting
Y
N
Y
N
Y
N
10
OK
OK
OK