Trouble Shooting Chart - Elo TouchSystems ET17 XXL Series Service Manual

Table of Contents
1. No display of screen (Screen is black).......................................................................50
2. Nothing displays on screen (Screen is black)..............................................................51
3. Checking the back light unit .......................................................................................54
4. Abnormal screen.......................................................................................................55
5. Abnormal Auto adjustment........................................................................................56
5.1 OSD Adjust problem..........................................................................................57
6. Checking the interface circuit of sync signal................................................................58
6.1 Checking the control circuit of horizontal sync pulse .............................................58
6.2 Checking the control circuit of vertical sync pulse.................................................58
7. Checking the resolution change IC movement ............................................................59
8. No Power on............................................................................................................60
9. Checking the DC/DC converter circuit.......................................................................61
10. Checking the operation of CPU..............................................................................62
11. Checking the audio circuit.......................................................................................63

TROUBLE SHOOTING CHART

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