Optical writing and reading apparatus

An optical writing and reading apparatus comprising:

• a deck base having an opening at its center, on which an optical pickup including an object-glass is mounted and can be moved along both sides of the opening, and which is formed adjacent to the opening with a center hole, and is formed around the center hole with fastening holes elongated in a direction perpendicular to a moving direction of the optical pickup;
• a bracket fixedly attached to the deck base, which is formed at its center with a center reference hole corresponding to the center hole of the deck base and formed around the center reference hole with assembling elongated holes corresponding to the fastening holes of the deck base;
• and
• a spindle motor fixedly attached to the bracket and including a turntable, which is formed with fastening holes at its lower surface which correspond to the assembling holes of the deck base into which screws are screwed.

An optical writing and reading apparatus comprising:

• a deck base formed with an opening and formed with a plurality of assembling holes around the opening;
• an optical pickup mounted on the deck base to be moved along the opening;
• a spindle motor formed with fastening holes corresponding to the assembling holes of the deck base and fixed to the deck base by screwing screws through the assembling holes;
• and
• a turntable coupled to a shaft of the spindle motor;
• the assembling holes of the deck base being shaped as elongated holes extended in a direction perpendicular to a moving direction of the optical pickup to allow the spindle motor to be adjusted in position.