Level 3 Repair
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-31
8-3-10. LCD
LCD is still off after PWR ON
Yes
No
Reconnect the HDC1100
Check the connection of
HDC1100
Yes
END
No
Check the PMIC(U702)
DC-DC(U1100)
BUCK(U1105)
Check the C1121
and High(about 18V)
Yes
No
Check C1110=1.8V,
C1106=1.2V,C1108=3.3V
Yes
Yes
Replace LCD
Module
Yes
No
Check the Backlight Driver IC(U1107)
Check the freq of
C1105(19.2MHz)
Check the U1103
Yes
Replace or resolder
OSC1100
No
Check the signal
IDISPLAY_PCLK(TP1107)
LCD_F(0)(TP1100)
Summary of Contents for GT-P7320
Page 121: ...www s manuals com ...