CONFIDENTIAL
LTM1525/LT15S13C
5-1
5 Troubleshooting
5-1 No Power
Does proper DC 14V appear at DC
jack connected to CN801?
Check SMPS PCB and Adapter.
Yes
No
No
No
No
No
Does proper DC 3.3V_A
appear at FT852?
Check IC811.
Check IC812.
Yes
Does proper DC 2.5V_A
appear at Pin 3 of IC802?
Check IC802.
Yes
Does proper DC 3.3V_B
appear at T807?
Check IC805.
Yes
Yes
Does proper DC 2.5V_B
appear at Pin 4 of IC806?
Check IC806.
WAVEFORMS
IC811 #2
IC805 #1
IC812 #2
1
2
3
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 ...