Horizontal Periodic Black Lines, Dots - Samsung MultiXpress K4 Series Service Manual

4.7.3. Horizontal Periodic Black Lines, Dots.

A. Typical faulty images
B. Troubleshooting procedure
Step Check item
1 Poor connection between CR terminal and Set.
2 Poor charge voltage of HVPS (MHV)
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Action
Wipe out the surface of contaminated CR terminal.
Check the connection between MHV terminal and
connector.
Replace HVPS.
(Refer to 3.3.5.)
4. Troubleshooting
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