![background image](http://html.mh-extra.com/html/samsung/anycall-gt-b5722c/anycall-gt-b5722c_service-manual_338886024.webp)
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
9-18
9-10. Back Light (for Color Main LCD)
Is BACKLIGHT set AlwaysON
in the Menu?
Set BACKLIGHT on Always ON
END
No
Yes
Yes
Backlight does not work
Check the outflow voltage of
U502
Replace U502 and Check HEA500
Not OK
OK
Yes
Replace the LCD Module
Summary of Contents for Anycall GT-B5722C
Page 54: ...www s manuals com ...