Samsung GT-C3750 Service Manual page 53

8-3-11. Back Light (LCD)
LCD does not work
Check the LCD FPCB
(connection, broken)
Check the slide FPCB
(connection, broken)
The Voltage at C417=VBAT?
Yes
Yes
Yes
Yes
END
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No
Change the LCD module or connect the LCD
FPCB to SUB PBA correctly.
No
Change the SUB PBA or connect the slide
FPCB to PBA correctly.
No
Resolder the C417.
Check the HEA400 mounted to PBA correctly.
8-29
Level 3 Repair