DVD player unit DISC IN indicator or DISC DISTINCTION indicator does not come on/does not go off
DVD player unit DISC IN indicator or DISC DISTINCTION indicator does not come on/does not go off1. Check the DVD player unit operation.
Does the DVD player unit operate normally?
YES - Operation is normal at this time.
NO - Go to step 2.
2. Substitute a known-good disc and recheck.
Is it normal?
YES - Original disc is faulty.
NO - Substitute a known-good audio unit and recheck. If the symptom/indicated goes away, replace the original audio unit.