Index
Trouble Shooting
NMV 1700V
1.
No display of screen (Screen is black, color of LED is amber) ------------------------------------------------------------ 1
2.
Nothing displays on screen (Screen is black, color of LED is green) ---------------------------------------------------- 2
3.
Checking the back light unit -------------------------------------------------------------------------------------------------------- 5
4.
Abnormal screen ----------------------------------------------------------------------------------------------------------------------- 6
5.
Abnormal Auto adjustment ---------------------------------------------------------------------------------------------------------- 8
5.1 NO OSM display ------------------------------------------------------------------------------------------------------------------ 8
5.2 OSD Adjust p roblem ------------------------------------------------------------------------------------------------------------- 8
6.
Abnormal plug and play operation ------------------------------------------------------------------------------------------------ 9
6.1 Abnormal DDC2 ------------------------------------------------------------------------------------------------------------------ 9
7.
Checking the interface circuit of sync signal --------------------------------------------------------------------------------- 10
7.1 Checking the control circuit of horizontal sync pulse ----------------------------------------------------------------- 10
7.2 Checking the control circuit of vertical sync pulse -------------------------------------------------------------------- 10
8.
Checking the resolution change IC movement ------------------------------------------------------------------------------- 11
9.
No power on --------------------------------------------------------------------------------------------------------------------------- 12
10. Checking the DC/DC converter circuit ----------------------------------------------------------------------------------------- 13
11. Checking the operation of CPU -------------------------------------------------------------------------------------------------- 14
12. Checking the audio circuit --------------------------------------------------------------------------------------------------------- 15
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