The solution to the CD-ROM drive in the notebook computer

1. Wipe the laser head with a dry swab

Press the eject key of the optical drive to open the optical drive. Gently wipe the lens of the laser head with a cotton ball or cotton swab. Even if not for a long time, due to the internal ash of the notebook, the optical drive lens will accumulate a lot of dust, in the CD-ROM tray with the finger strokes, fingertips will be stained with dust.

2. Clean the laser head with anhydrous alcohol

If the first step is not valid, then you need to lower the heavy hand, with a point of anhydrous alcohol to wipe the laser lens, and then clean with pure water.

3. Remove the fixing screws and disconnect the optical drive

At this point in the CD, if you read or write a disk or did not improve, then continue to look down.

4, find the adjustment resistor

Locate the adjustment resistor in the optical drive assembly. If you have studied electrical and electronics, you should know what the potentiometer is roughly like. If you haven't learned it, you can find it from the Internet.

5. Adjust Potentiometer

First adjust the resistance clockwise, roughly rotate 5-10 degrees of appearance; turn on the boot to see if there is any improvement, no words continue to adjust once.

Small series to recommend another one to solve the computer optical drive does not read the disk method.

1. Open the enclosure of the optical drive.

2. Use a PIN to forcibly eject the tray, remove the "SONY" logo plastic stall board.

3. Use a small screwdriver to press the plastic peg and remove the front panel.

4. Remove the bottom plate.

5. Take care to remove the upper cover plate.

6. What we normally call the laser head, what we actually see is the lens, the actual laser head underneath the lens.

7. Unplug the head and circuit board connection flexible cable, or we are not convenient to measure potentiometer resistance.

8. Reverse the optical drive, let the laser head down, then we will see the shape of the back of the bald component. The position near the flexible cable below is the bald-head power-regulating potentiometer. Amplification diagram of Laser head assembly

Turn the optical drive over and let the laser head down, and then we'll see the shape of the back of the bald component. The position near the flexible cable below is the bald-head power-regulating potentiometer.

9. For potentiometers to pay attention to the potentiometer has three pins, if the use of multimeter test, of which two pins for 0, we only test the amount of resistance of the two pins of the change in the resistance.

Use a multimeter to measure the current resistance of the power-regulating potentiometer.

10. Use a multimeter to measure the current resistance of the power-regulating potentiometer.

11. Watch the meter head reading, 919OHM. Using a small Phillips screwdriver, turn clockwise and gently rotate 5-10 degrees.

12. Using a small Phillips screwdriver, rotate clockwise and gently 5-10 degrees.

13. Then use the multimeter to test the resistance value of the potentiometer.

14. Read its value, should be the original value of the 2/3 best, the figure is read 666OHM. If it is too large or too small, try again until it meets the requirement.

15. After cleaning the lens, the CD-ROM drive is disassembled in reverse order, and the electric test machine, in general, the CD-ROM drive performance has greatly improved, and the new optical drive almost.