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LITE-ON DVD-Drive repaired

By on November 13, 2015
dvd player repair

 

 

 

 

 

 

 

 

 

This DVD-Drive brand LITE-ON model iHAS224 Y was brought to me and the complaint was the tray never open and therefore it was unused.

lite on dvd repair

This kind of malfunction is typical in these kinds of PC-units. The culprit of this defect is the magnetization most of the time.

Note: magnetization, magnetization (in British English) or magnetic polarization is when the magnetic molecules or magnets’ unit are aligned in one direction, creating uniform molecules that pull force in the same direction. When you consult the literature there are three ways of demagnetization:

  1. By hammering or striking the magnetized piece (for the electrons change their orientation).
  2. By applying a strong magnetic field CA (putting that body within a coil fed with alternating current)
  3. By applying heat (given by the Curie Law, up to the temperature where it loses its magnetism).

Of course that method numbered as 1 can’t be used in this kind of units. But methods numbered above as 2 and 3 are more practical, in my specific case I always opt for the number 3.

The device was dismantled in the top (of course, in this kind of model) till get to the mechanism. The clue is to find the magnetized piece due to the magnetic top that pushes the disc onto the motor rotor wheel (the permanent Magnet has often just become too strong to elevate and free the disc) will not leave each other.

 

lite on dvd player repair

3

Temperature was applied to the magnetized piece by means of an Electric Soldering Iron (an efficient and easy method) for some minutes, as shown in the figure below:

4

Once the metallic piece is retired from the tip of the Soldering Iron, you should leave it to refresh.

Later on comes the isolation process, I always use the Correction Fluid used to erase the ink on the pens’ writing. It dries fast, so both pieces were painted twice. The black one was painted for both sides, all this to avoid quick and future magnetization. Look at the photos below.

5

All the system was mounted again to check on the drive and look at the result. The tray was opening fine.

6

So far so good, but something else had to be checked yet: could this drive read CDs or DVDs? Then it was connected to a PC as an external unit and when some CDs and DVDs were inserted to read, the result was 100% satisfactory.

7

Mission accomplished.

humbertophoto5

 

 

 

 

 

 

 

 

 

 

This article was prepared for you by Humberto Rodriguez, one of our ‘Master Authors’ from Cuba.

Please give a support by clicking  on the social buttons below. Your feedback on the post is welcome. Please leave it in the comments.

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Note: You may check his previous repair article in the below link:

https://www.jestineyong.com/seagate-barracuda-80-gbytes-hdd-repaired/

 

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16 Comments

  1. Suranga Electronics

    November 13, 2015 at 1:26 pm

    good repair...

    Likes(1)Dislikes(0)
    • Humberto

      November 13, 2015 at 10:12 pm

      Thanks Suranga, I have done this procedure more than 100 times, and always 100% satisfactory.

      Likes(0)Dislikes(0)
  2. Robert Calk

    November 13, 2015 at 3:22 pm

    Good job, Humberto.

    Likes(0)Dislikes(0)
    • Humberto

      November 13, 2015 at 10:30 pm

      Thanks Robert.

      Likes(0)Dislikes(0)
  3. Albert van Bemmelen

    November 13, 2015 at 3:55 pm

    Well done Humberto! This magnetizing problem I know to be true also for Xbox360 dvd players and Philips dvd recorders. But also in many PC dvd players were the player also refuses to open/eject the plateau. In the Philips dvd hdd tv recorder like in other players for instance it helps to keep a disc in the player, so the eject function always will work. On the Xbox360 I used some thin layers of strong pvc tape on the top wheel to tackle the eject issue. Also because the Xbox360 often is placed in different positions (standing vertical or placed horizontal) and leaving a disc in the system is therefore no good option.
    On the Xbox this helped to fix the problem without heating up the magnet. So just increasing the distance between the magnet in the top wheel and the bottom turnmotor that holds the disc (just a few micrometer) can be enough to fix this.

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    • Humberto

      November 13, 2015 at 10:48 pm

      Albert you are 100% right. I've been facing with this trouble for more than 15 years, at the beginning I only used the Correction Fluid, but when the time was going by I discovered in the Literature the 3 methods menctioned in the article.

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  4. Paris Azis

    November 13, 2015 at 4:17 pm

    Hello Humberto

    This is the positive effect of high temperature applied at a proper spot!
    Thanks for sharing this experience.

    Likes(0)Dislikes(0)
    • Humberto

      November 13, 2015 at 10:33 pm

      Yes Paris, you are right

      Likes(0)Dislikes(0)
  5. Gerald Millward

    November 13, 2015 at 5:51 pm

    Hunberto - fascinating! I've never come across this in all my years - it just goes to show, there's always something new to learn in computer repair, no matter how many years you've been at it. Thank you.

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    • Humberto

      November 13, 2015 at 10:38 pm

      Thanks Gerald, There is always a first time.

      Likes(0)Dislikes(0)
  6. Parasuraman S

    November 14, 2015 at 9:17 am

    Vow! Never, never, did I know about this possibility! I learnt something new today! Many, many, thanks! Please keep sharing your valuable experiences, for 'students' like me to learn! (During my personality development classes, I used to say that this universe is a university, everyone we meet is a professor and there will be something that we can learn from everyone at every time. We should bow and be humble to receive such knowledge, as it is like water and can flow from top to bottom only! There is something hidden in everything in this world; we have to keep our eyes and ears open to know it!)

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    • Humberto

      November 17, 2015 at 2:41 am

      Thanks Parasuraman S. Know what? I've really learned too much in Mr. Jestine Yong's blog, therefore thanks to Jestine Yong and all the readers who share their experiences here.

      Likes(2)Dislikes(0)
  7. beh

    November 14, 2015 at 12:23 pm

    Hi Humberto
    thanks for sharing your experiences

    Likes(0)Dislikes(0)
    • Humberto

      November 17, 2015 at 2:42 am

      Thanks beh.

      Likes(0)Dislikes(0)
  8. Yogesh Panchal

    November 14, 2015 at 3:30 pm

    Humberto Good JOB!thanks for sharing.

    Likes(0)Dislikes(0)
    • Humberto

      November 17, 2015 at 2:43 am

      Ok Yogesh, you are welcome.

      Likes(0)Dislikes(0)

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