Read Sharp 28LF-92H (serv.man2) Service Manual online
52
AK - 45
CHASSIS
14.5.SCREEN ADJUSTMENT (FBT SCREEN)
From the option list change option 2 bit 6 from 0 to 1 for disabling vertical scan. Adjust horizontal line
via screen adjust pot. as thin as possible. Then press 0 to leave service menu.
SCREEN
ADJUST
POT
ADJUST
POT
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