5-2 In case of does’t display the screen into specific mode
(1) Symptom
1) The screen does not become the display from specific input mode
(RF, AV, Component, RGB, DVI).
(2) Check follow
1) Check the all input mode should become normality display.
2) Check the Video(Main)/Data(Sub), Video(Main)/Video(Sub) should become
normality display from the PIP mode or DW mode. (Re-Check it Swap)
(3) In case of becomes unusual display from RF mode
(4) In the case of becomes unusual display from Component, RGB mode
(5) In the case of becomes unusual display from HDMI mode
(6) In the case of becomes unusual display from SCART1 mode
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Only for training and service purposes
LGE Internal Use Only
C
2008
- 20 -
Is normal the Tuner?
Is normal the CXA2069Q?
Is the Tuner Cable connected well?
Cable inserts well.
Yes
No
No
Yes
Is normal the FIL8548?
Replace Tuner
No
Is normal the Input voltage,
IIC Communication and CVBS output?
Yes
Is normal the Input voltage,
IIC Communication and HV sync?
No
Replace IC
No
Is normal the Input voltage,
IIC Communication and HV sync?
No
Block A
Replace IC
No
Is R,G,B input and H,V
Sync of the JK1100 normal?
Check the input source.
No
Yes
Same as Block A
Is normal the
SIL9125 (IC1000)?
Yes
Same as Block A
Is normal the Input voltage,
IIC Communication and HV sync?
No
Replace IC
No
Is Video input of A/V jack
normal? (JK1200)
Yes
Same as Block A
Check the input source.
No
