Lcd; Lcd Is Still Off After Pwr On - Samsung GT-P1000 Servise Manual

Level 3 Repair

8-3-8. LCD

LCD is still off after PWR ON

Check the connection of
Check the R845 short and
Check the soldering status of
Check C808 = 1.8V,
C806 = 3.3V
Check C837 = 3.3V,
C832 = 1.2V,
C821 = 1.8V
Check the signal of
CMC_B(0), CMC_G(3),
Replace LCD
Yes
HDC801
Yes
High(1.8V)
Yes
L804
Yes
Yes
Yes
CMC_R(7)
Yes
Module
Yes
END
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No
Reconnect the HDC801
No
Resolder R845 and reinstall binary
No
Check the PMU(crack, open, etc.)
No
(if PMU has some problem, it is to be
3.3V
No
1.2V
1.8V
No
Check the freq of
OSC800(19.2MHz)
Yes
Replace or resolder U808
8-18
Resolder L804
replaced)
resolder or change U807
resolder or change U804
check the PMU
No
Replace or resolder
OSC800