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2. Sound normal, but no picture
(blue screen and OSD can be displayed.)
Check NS01
and its
periphery.
Note: HDMI channel is excluded. For HDMI channel picture and sound check, please refer to procedure
of 5.
3. Sound OK, but no picture (only backlight lights up)
Panel LVDS
reception board
has problem.
Yes
Try other source, to
check the picture
display.
Yes
No
Sound is ok, but
only raster appears.
Check LVDS power
supply is normal.
Normal
Check signal from NS01
to XS01 is normal.
Normal
Abnormal
Check NS01 power
supply and its
peripheral circuit.
Yes
Check N402 circuit.
Sound is OK,
but no picture.
Check backlight
is lit.
Check according to
steps of 4. Picture
OK, but no sound.
Abnormal
Check NJ05 pin 2 is
low level or not.
No
Check NS01 pin 162
and its inverter circuit.
14
No
Check backlight
board, main chip pin
81 backlight control
status.
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