START
Normal
Does thescreen
appear?
Is display normal?
Checkifvoltage of screen F1andF2is3.3V.
Check if voltage of 34 pin of UPD16311is-24V.
Check groundednegativevoltage of screen F1 and F2.
Replace UPD16311.
Check if connectioncordbetweenscreen and
mainboard is broken?
Check if UPD16311pinisconnected.
Check if pin of screen is connected.
Yes
Yes
No
No
B
Display abnormal
7
Содержание DS-2000N
Страница 13: ...C Open close abnormal 8 ...
Страница 21: ...4 WAVEFORMS ON VIDEO CIRCUIT 16 ...
Страница 22: ...17 ...
Страница 23: ...18 ...
Страница 24: ...19 ...
Страница 25: ...20 ...
Страница 26: ...21 ...
Страница 35: ...7 CIRCUIT DIAGRAM 30 ...
Страница 39: ...8 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW 34 ...
Страница 40: ...35 ...
Страница 41: ...36 ...
Страница 42: ...37 ...
Страница 43: ...38 ...
Страница 44: ...39 ...