8-6. Typical Faults on CD-R
1. Signal skipping or interruption
� There are scratches, dusts and / or fingerprints on the disc. � The pickup is faulty. � Misalignment (Screw, etc.).
2. Signal skipping or interruption occurs when the disc is recorded and then played back on the same CD-R unit.
� The recording power is too low. � The pickup is faulty. � Some of the section on the disc where dusts were attached could not be properly recorded.
3. SEARCH operation cannot be executed.
� AC voltage is too low (-15% or more). � The gear in the servo mechanism is faulty (scratches, etc.). � Misalignment (Screw, etc.). � The pickup is faulty.
4. The unit cannot be put into REC-PAUSE mode.
� The recording power is too low. � The pickup is faulty.
5. The tray cannot be open.
� There are scratches or dusts on the FG detection photo reflector pattern attached to the bottom side of disc table. � The wires inside the unit get entangled. � The oil put in the loading mechanism is too less.
