LC-52XS1E (serv.man4). Troubleshooting Table - Sharp TV Service Manual (repair manual). Page 13

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LC-52XS1E/RU/LC-65XS1E/RU
4 – 13
[8] LED Troubleshooting
LCD failure-1
Does a single or several verti-
cal stripes appear on the LCD 
screen? 
Does a single or several hori-
zontal stripes appear on the 
LCD screen?
Do luminescent or black dots 
appear on the screen?
Is the on-screen image rip-
pling or distorted?
Replace the LCD panel.
LCD failure-2
The backlight func-
tions. Does not the 
image come out in the 
LCD screen 
(screen black)? 
Does the entire LCD 
screen look whitish all 
over?
Does the QS drive func-
tion?
Are the data bit drop-
out?
(No solution even when 
turning on and off the QS 
drive)
Is the gamma correc-
tion as specified?
Check or Replace the LCD_CONTROL_UNIT

Display

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