Samsung Electronics
● Symptom : 1. Continuous Logo Display at Initial State
2. No display on LCD
● Possible Cause :
Fail to Initialize Communication Port between Video PBA & OPE PBA
● Troubleshooting method :
1) Check +5V on OPE PBA. ( 7,8,9 Pin of Main IF (power) / Refer to Page 2-29)
Check the exible pcb harness connecting between OPE PBA and LCD panel.
If there is a defect, replace the OPE PBA or LCD panel.
2) Check the connection between Video PBA (UI_IF on Page 2-23) and OPE PBA.
3) Reboot the set.
4) Send any printing command.
5) If the printing job works, replace OPE PBA.
6) If the printing job does not work, replace Video PBA.
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