LCD TV SERVICE MANUAL - TV & Monitor Service Manual Database
LCD TV SERVICE MANUAL - TV & Monitor Service Manual Database
LCD TV SERVICE MANUAL - TV & Monitor Service Manual Database
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5-2. In case there is no display on the screen in specific modes<br />
(1) Symptom<br />
1) There is no screen display from a specific input mode<br />
(RF, AV, Component, RGB, DVI).<br />
(2) Procedure check<br />
1) Check the all input modes have normal display.<br />
2) Check the video(main)/ data(sub), video(main)/ video(sub) have normal<br />
displays from the PIP mode or DW mode(re-check it/ swap).<br />
(3) In case of an unusual display in RF mode<br />
Block A<br />
Is the Tuner normal?<br />
Yes<br />
Is the CXA2069Q normal?<br />
Yes<br />
Is the FIL8548 normal?<br />
No<br />
Is the Tuner Cable connected?<br />
Re-insert the cable<br />
(4) In case of an unusual display in side S-video/ AV mode<br />
Is the Video input of the AV<br />
Jack(P1400) normal?<br />
Yes<br />
Is the CXA2069Q normal?<br />
Yes<br />
Same as Block A<br />
No<br />
No<br />
No<br />
No<br />
No<br />
Are the Input voltage, IIC<br />
Communication and HV sync normal?<br />
Are the input voltage, IIC<br />
Communication and HV sync normal?<br />
Check the input source<br />
Are the Input voltage, IIC<br />
Communication and HV sync normal?<br />
- 19 -<br />
Yes<br />
No<br />
No<br />
No<br />
Are the Input voltage, IIC Communication<br />
and CVBS output normal?<br />
No<br />
Replace the Tuner.<br />
Replace the IC.<br />
Replace the IC.<br />
Replace the IC.
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