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Q7T3(CPT panel) LCD Monitor Service Guide
2. BUTTON function:
3. OSD function:
OSD is not working
Yes
Is control BD connecting?
Yes
Is bottom switch normally?
No
Replace Control BD
Is OSD working??
No
Check Interface BD
OSD doesn't work
Is control BD working?
Check interface BD
Trouble Shooting
No
Plug control BD then retry
Yes
Replace control BD then retry
No
Replace control BD
2
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