CONFIDENTIAL
5 Troubleshooting
5-2
LTM1525/LT15S13C
5-2 No Video (PC Signal)
Power indicator is green.
Does the signal appear
at C491, C489, C488
of R, G, B input?
Check CN401 and cable.
Yes
No
No
No
No
No
Yes
Does the clock pulse
appear at output of
T201, T202, T203 ~ RA356?
Check related circuit of IC350.
Yes
Does the clock pulse
appear at R354?
Check R354 and related
circuit of R354.
Yes
Does the clock pulse
appear at X201?
Check X201 and related
circuit of X201.
Yes
Does the clock pulse appear at
output of RA301~RA306?
Replace RA301 ~ RA306, IC300.
Yes
Replace LCD Panel.
WAVEFORMS
C491
4
R354
5
X201
6
Summary of Contents for LTM 1525
Page 7: ...2 Product Specifications 2 4 LTM1525 LT15S13C CONFIDENTIAL ...
Page 8: ...2 Product Specifications LTM1525 LT15S13C 2 5 CONFIDENTIAL ...
Page 13: ...Memo 2 Product Specifications 2 10 LTM1525 LT15S13C CONFIDENTIAL ...
Page 21: ...Memo 4 Alignments and Adjustments 4 6 LTM1525 LT15S13C CONFIDENTIAL ...
Page 26: ...CONFIDENTIAL LTM1525 LT15S13C 6 1 6 Exploded View and Parts List ...
Page 27: ...Memo 6 Exploded View Parts List 6 2 LTM1525 LT15S13C CONFIDENTIAL ...
Page 88: ...8 Block Diagram LTM1525 LT15S13C 8 1 CONFIDENTIAL ...
Page 89: ...8 Block Diagrams 8 2 LTM1525 LT15S13C CONFIDENTIAL ...
Page 93: ...10 Schematic Diagrams 10 2 LTM1525 LT15S13C CONFIDENTIAL CN401 4 R354 5 ...
Page 95: ...10 Schematic Diagrams 10 4 LTM1525 LT15S13C CONFIDENTIAL X201 6 ...
Page 99: ...10 Schematic Diagrams 10 8 LTM1525 LT15S13C CONFIDENTIAL CN828 16 7 ...