LC-52XS1E (serv.man4). Troubleshooting Table - Sharp TV Service Manual (repair manual). Page 10

Read Sharp LC-52XS1E (serv.man4) Service Manual online

LC-52XS1E/RU/LC-65XS1E/RU
4 – 10
[6] Abnormal screen display
Abnormal screen display
* Check the monitor separately. Feed the signal of 1080p 60Hz.
Do the backlights light?
NO
Go to the section "The backlights do not 
light (Monitor and AVC)".
YES
Does the monitor process 
menu display appear?
YES
When "LCD TEST PATTERN" on page 40/
46 of the monitor process menu is 
switched except OFF, does the pattern dis-
play appear normally? (White pattern)
NO
Check the peripheries of IC6152, 
IC5403 (65" only), and IC5409. Check 
the connection between LCD module 
and FPC.
NO
YES
When "FRA TEST PATTERN" on page 40/
46 of the monitor process menu is 
switched except OFF, does the pattern dis-
play appear normally? (Blue pattern)
NO
Check the periphery of IC4901.
YES
When "FRA DDRA BIST" on page 4/46 of 
the monitor process menu is executed, 
does "OK/OK" appear?
NO
Check the peripheries of IC4901 and 
IC590.
YES
When "FRA DDRB BIST" on page 4/46 of 
the monitor process menu is executed, 
does "OK/OK" appear?
NO
Check the peripheries of IC4901 and 
IC5902
YES
Is the LVDS signal of SC4801 normal?
NO
Check the connection of SC4801 and 
the thin coaxial.
YES
When "PSF TEST PATTERN" on page 40/
46 of the monitor process menu is 
switched except OFF, does the pattern dis-
play appear normally? (9 spot pattern)
NO
Check the peripheries of IC6203, 
IC6204, IC6205, and X6201(33MHz).
YES
Go to the section "No picture"
Is 12V applied to the pin 10 of 
P4802 in the LCD_A3C con-
troller unit?
NO
Check the connection of P4802, the power 
unit, and the IF PWB.
YES
Check the connection of 
P7909 and the IF PWB.

Display

Click on the first or last page to see other LC-52XS1E (serv.man4) service manuals if exist.

Random: