Samsung MULTIXPRESS CLX-9251 Series Service Manual page 437

23) LCD is blinking when turning on the power.
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Symptom : LCD is blinking when turning on the power.
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Cause : OPE board defect
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Troubleshooting
1) Check assembling the LCD harness.
2) Replace the OPE board with new one.
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4. Troubleshooting
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