When repairing the CD drive of car radios, the question often arises of disassembling the engine, cleaning the lens or replacing the entire laser unit. In this case, you need to know how to properly disassemble them. After all, a few wrong movements can lead to a complete breakdown of the car radio.
Necessary
- - tweezers;
- - screwdriver;
- - a flap of tissue.
Instructions
Step 1
The first step is to remove the CD drive from the body of the player itself. Gently remove dust and dirt from the surface with a piece of cloth. Remember that any optics is very afraid of all kinds of contamination, so the less, the better.
Step 2
Now unfasten the board with optical sensors from the cover. This small board is responsible for detecting the presence of a disc in the drive. There are infrared LEDs on the surface of the main drive plate, and phototransistors (photo detectors) are located on the board that you must unfasten. All these elements together make up what is called an "open optical pair".
Step 3
Use a narrow screwdriver or tweezers to unfasten the board containing the infrared LEDs. Remember: the board is attached to a latch made of plastic.
Step 4
Now that both the board and the wires going to it no longer interfere with you, remove the four small screws securing the top cover. When the screws are unscrewed, do not rush to immediately remove the cover. The fact is that in most CD drives, a base is attached to this cover by means of springs, on which the laser optical unit is located. This is done in order to ensure balance during operation of the drive and eliminate all kinds of vibrations.
Step 5
Using a pair of tweezers, very carefully release the spring fasteners on the base with the optical assembly or on the top cover. To provide direct access to the lens of the laser unit, use tweezers to unhook the rigid spring securing the pressure bar. During operation, the disc is fixed from above using a clamping bar.
Step 6
After you unfasten the spring from the clamping bar, you can fold the latter upward, thus providing access to the spindle drive and optical unit.
