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