CONFIDENTIAL
5 Troubleshooting
5-2
LS15N13W/LS17N13W
5-2 No Video (PC Signal, DTV)
Power indicator is green.
Does the signal appear
at C306, C398, C397
of R, G, B input?
Check CN401
CN409~CN411 and cable.
Yes
Yes
Yes
No
No
No
No
No
Does the clock pulse appear at
output of RA351 ~ RA356?
Check related circuit of IC350.
Does the clock pulse
appear at IC002~IC005?
Check IC001 and related
circuit of IC001.
Does the signal appear at CR01,
CG01,CB01 of R,G,B output?
Check X201 and related
circuit of IC200.
Does the clock pulse appear at
output of RA301~RA306?
Check IC901 and related
circuit of IC300.
Replace LCD Panel.
WAVEFORMS
Full White R, G, B Input (C306, 398, 397)
3-1
FullWhite Y Input (C398_DTV)
3-2
X201
5
DPTV R, G, B Output (CR01, CG01, CB01)
4
3-1
3-2
4
5
Yes
Yes
Yes
Summary of Contents for NK15S series
Page 14: ...4 Alignments and Adjustments LS15N13W LS17N13W 4 3 CONFIDENTIAL...
Page 15: ...Memo 4 Alignments and Adjustments 4 4 LS15N13W LS17N13W CONFIDENTIAL...
Page 21: ...Memo 5 Troubleshooting 5 6 LS15N13W LS17N13W CONFIDENTIAL...
Page 22: ...CONFIDENTIAL LS15N13W LS17N13W 6 1 6 Exploded View and Parts List 6 1 1 LS15N13W...
Page 24: ...LS15N13W LS17N13W 6 3 6 Schematic Diagrams CONFIDENTIAL 6 1 3 LS15N13W Rear 4 2 3 1...
Page 26: ...LS15N13W LS17N13W 6 5 6 Schematic Diagrams CONFIDENTIAL 6 2 1 LS17N13W...
Page 28: ...LS15N13W LS17N13W 6 7 6 Schematic Diagrams CONFIDENTIAL 6 2 3 LS17N13W Rear 4 2 3 1...
Page 55: ...8 Block Diagram LS15N13W LS17N13W 8 1 CONFIDENTIAL...
Page 56: ...8 Block Diagrams 8 2 LS15N13W LS17N13W CONFIDENTIAL Memo...
Page 58: ...Memo 9 Schematic Diagrams 9 2 LS15N13W LS17N13W CONFIDENTIAL...
Page 64: ...CONFIDENTIAL 10 Schematic Diagrams 10 6 LS15N13W LS17N13W IC801 2 1 IC805 1 2...
