Service Manual
31
Power (include IF +5Vand +3.3V) supply and display normal but LED Amber
Is Power LED Amber?
Do the Hsync. & Vsync. Signals exist
in CN102
#13& #14 separately when
select VGA mode by OSD?
Do the Hsync. & Vsync. Signals exist
in R133 & R134?
Do the Hsync. & Vsync. Signals exist
in U105#16& #17?
Is the Q107 work normal?
Is theLED control signal at 61# of
U105 high-low convertible when DC
on/off
END
Insert VGA Cable correctly
Check R133 & R134
Change R133 & R134
Change Q107
NO
NO
YES
YES
Change U105
NO
NO
NO
YES
YES
YES
Содержание E1709W
Страница 1: ...Service Manual 0 Service Manual LCD Monitor E1709W ...
Страница 17: ...Service Manual 16 8 Key Parts Pin Assignments 8 1U105 TSUM1PER LF 2 ...
Страница 18: ...Service Manual 17 ...
Страница 58: ...Service Manual 57 Attachment 3 PCB Layout power inverter bd Power inverter bd Top Layer ...
Страница 59: ...Service Manual 58 Bottom Layer ...
Страница 60: ...Service Manual 59 I F board Top Layer ...
Страница 61: ...Service Manual 60 Bottom Layer ...
Страница 62: ...Service Manual 61 Keypad Top Layer Bottom Layer ...