Service Manual: ET1517L, ET1717L
ES600904 Rev B, Page 40 of 44
3.3. Trouble Shooting Guide
No. Issue Analysis Solution
A
Check user interface connection:
adapter AC plug to outlet, adapter DC plug
to monitor
Re-plug in all the cables, or
change a cable
B Check OSD Power button ON
Press ON OSD Power
button
C
Check internal connector connection:
a. LVDS cable, to panel / to AD board
b. Backlight cable, to panel / to AD board / to
*LED Driving board
c. Keypad cable, to Keypad board / to AD
board
d. *LED Driving board cable, to LED Driving
board / to AD board
(Note: “ *LED Driving board ” is for 17" CMI
panel model only)
Re-plug in all the cables.
D Check internal cables if there any broken Replace it, if cable broken.
E Check fuse(F1) on AD board Replace it, if F1 open.
1
Panel no display,
indicator OSD LED
not lighting.
F
Check panel power at C63 (15" model 3.3V,
17" model 5.0V)
Check scalar power at C73 (3.3V)
Replace related circuit
components
2
Panel no display,
indicator OSD LED
blinking.
A
Check user interface connection:
VGA cable to PC, VGA cable to monitor
Re-plug in the cable, or
change a cable
A
Check internal Backlight cable connection:
a. Backlight cable, to panel / to
D board / to
*LED Driving board
b.*LED Driving board cable, to LED Driving
board / to AD board
(Note: “ *LED Driving board ” is for 17" CMI
panel model only)
Re-plug in all the cables.
3
Panel no display,
indicator OSD LED
lighting.
B Check internal Backlight cable if any broken Replace it, if cable broken.
A Check internal LVDS cable connection Re-plug in all the cables.
4
Panel displaying all
white, but no
image, indicator
OSD LED lighting.
B Check internal LVDS cable if any broken Replace it, if cable broken.
US054952 - 2012-09-28T00:54:02Z
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