LG 26LC2R Series, Руководство по обслуживанию

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7. No picture
(1) Symptom
1) Some mode doesn’t display.
2) Front LED is green
3) The set still discharge a little
(2) Check process
1) RF-mode doesn’t display
2) AV/Component-mode doesn’t display
3) RGB/HDMI-mode doesn’
- 27 -
Yes Yes Yes Yes
No No No No No
Is the LVDS cable
connected? Is the Tuner cable
connected?
Are good some
elements (C, R, L,
or Diode) at path?
Are input voltage,
I
2
C, and CVBS
output good in
Tuner?
Is VCT-P IC good?
Insert the LVDS
cable exactly Insert the Tuner
cable exactly
If it dead or short,
exchange this
elements
Yes Yes
No
No
No
Is the LVDS cable
connected?
Are good some
elements (C, R, L,
or Diode) at path?
Insert the LVDS
cable exactly
Is VCT-P IC good?
Exchange the
VCT-P IC
If it dead or short,
exchange this
elements
Exchange the
Tuner Exchange the
VCT-P IC
Yes Yes Yes Yes
No No No No
Is the LVDS cable
connected? Check the EDID
data Is AD9381 good?
(only _ HDMI)
Are good some
elements (C, R, L,
or Diode) at path?
Is VCT-P IC good?
Insert the LVDS
cable exactly
No
Download the
EDID data
If it dead or short,
exchange this
elements
Exchange AD9381
IC Exchange the
VCT-P IC