Alignment & Troubleshooting
Service Manual
4-117
Samsung Electronics
4.2.2.12 General solution
Error
LCD NOT DISPLAY
[Description]
Engine is warming up properly but LCD does not display anything on.
[Wrong Part]
1. Main Controller
2. OPE
3. SMPS
[Check and Cause]
1. Check 24V on Main controller.
2. If 24V from Main controller is normal, Check the CCFL inverter harness on
OPE_Main.
3. If not, check the F 71 on SMPS.
[Solution]
1. 24V power and CCFL inverter harness connection are on normal, replace
OPE_Main first and retry.
2. Keep on problem with 24V on, replace the Main controller.
3. Replace the SMPS.
Error
LSU Error
[Description]
LSU sync Error displays on LCD
[Wrong Part]
1. Drum Cartridge
2. Main Controller
3. Cover Open Connector
[Check and Cause]
1. Check LSU 5V/24VS
2. Main Controller LSU Part defect
3. Micro Switch Harness
[Solution]
1. Replace Drum Cartridge and retry
2. Replace Main Controller.
3. Replace Micro Switch Assy
Error
Cover Open
[Description]
The cover open massage displays on even when the print cover is closed.
[Wrong Part]
1. Hook Lever in the side cover / Micro Switch
[Check and Cause]
1. The Hook Lever in the top cover may be defective.
2. Check the CN8-4 on Main B°ØD and the micro switch on the rear side of set.
[Solution]
1. Replace the hook lever, if defective.
2. Check Cover Open harness. Replace Cover Open S/W
3. Replace the Main Control board.
Summary of Contents for SCX-6545N Series
Page 59: ...Finisher Service Manual 2 47 Samsung Electronics 2 3 2 System Configuration FINISHER FINISHER ...
Page 300: ...ExplodedView and Parts Service Manual 5 37 Samsung Electronics 5 12 MP Tray 1 2 5 6 7 3 4 0 ...
Page 302: ...ExplodedView and Parts Service Manual 5 39 Samsung Electronics 5 13 Scanner Ass y 0 2 1 3 4 ...
Page 327: ...ExplodedView and Parts Service Manual 5 64 Samsung Electronics 5 25 Fax Unit 1 4 3 2 5 0 ...
Page 372: ...System Diagram Service Manual 6 1 Samsung Electronics 6 System Diagram 6 1 Block Diagram ...
Page 373: ...System Diagram Service Manual 6 2 Samsung Electronics ...
Page 374: ...System Diagram Service Manual 6 3 Samsung Electronics ...
Page 375: ...System Diagram Service Manual 6 4 Samsung Electronics G ...
Page 376: ...System Diagram Service Manual 6 5 Samsung Electronics 6 2 Connection Diagram G ...
Page 377: ...System Diagram Service Manual 6 6 Samsung Electronics G ...
Page 378: ...System Diagram Service Manual 6 7 Samsung Electronics G ...
Page 379: ...System Diagram Service Manual 6 8 Samsung Electronics G ...
Page 380: ...System Diagram Service Manual 6 9 Samsung Electronics G ...