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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 following
1) Check the all input mode should become normality display.
(3) In case of becomes unusual display from RF mode
Is the Tuner normal?
Yes
Block A
Is the IC100(FLI106X0H)
normal?
(4) In the case of becomes unusual display from side S-video/AV mod
Is the Video input of the AV
(JK105, JK106) normal?
Same as Block A
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Only for training and service purposes
No
Is the RF cable connected with TV
Set?
No
Connect the RF cable.
No
Is the IIC communication waveform
between the tuner and IC100 normal?
No
Check the input source
Yes
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Is the Input voltage, IIC Communication
and CVBS output normal?
Replace the Tuner.
No
Replace the
IC100(FLI106X0H).
LGE Internal Use Only
No
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