Read LG 42LH250C (CHASSIS:LD91Z) Service Manual online
Making
Revision
2009. 2 . 1
LCD TV
Symptom
Buzzer Problem
Check the IC 904 & BU900
Check the “Time” item
on user Menu
YES
NO
Replace it
Check the “Time” item
on user Menu
YES
NO
Check the current time establishment
on “Time” item of user menu
NO
Set to “Alarm Time”
19~42LH250C
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