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CRYSTAL DVD Player Brought Back To Life

By on September 5, 2014
dvd repairing

 

 

 

 

 

 

 

 

My friend calls me to come to his house yesterday. He doesn’t explain why, I just came as a friend. I arrived at his house and asked him what happened. He explained that his DVD just dead and he could smell that is something burnt from DVD. I try to turn it on, but no signs of life. From my deduction, there is something burnt or shorted on this DVD power supply which prevented it to turn on. DVD’s brand is CRYSTAL and no model number was found.

dvd repair

I took this to my home because I don’t take my equipments with me. After I took the cover off, sure enough I can see main capacitor bulged slightly and the glue has a brown color. This glue always make power supply failed because it can cause shorted between the component leg.

 

Make sure to clean this glue when you repair electronics equipment. You can see the capacitor’s leg corroded too and we have to change it. I test the fuse, the result is no continuity and it looks like there is heavy shorted in primary side.

 dvd repairs

I test main capacitor with my homemade ESR Meter and the needle didn’t show any deflection. The ESR value is gone high and when I test this with continuity mode with my analog multimeter, the needle move to 0 ohms and didn’t move back because good capacitor will make the needle of the meter move to 0 ohms and moving back to infinity.

dvd repairing

One of bridge diodes also shorted, I just change all of bridge diodes from Mr. Jestine Yong advice on his one of article. The coil for EMI filter looks burnt too, I make sure this with my Ring tester and it was shorted.

 dvd repairings

It took several minutes to analyze all of primary side components and found the components in the below picture were faulty.

 dvd repaired

You can see the fuse is bad and two capacitors was cover with some glue that causes it to short, these mylar capacitor beside IC still has a good capacitance value but I just change it for safety. As soon as I know the culprits, I search my components storage to change it. After all of my effort I ready to test it, for the first time I attach bulb light to prevent something bad happen if I miss components which are still bad.

 dvdrepair

The bulb didn’t lit and this proves all of components work good. You can see from led indicator shown “hold” and I can play it with several DVD cassettes. I clean the lens and lubricate disc tray to make sure no further problem.

 dvdrepairs

I am very happy to see the smile on my friend face when I send it back to his home. Thanks God to keep me safe doing electronics repair. Please be careful when doing this work because it is really dangerous around main capacitor, always use safety goggles and isolation transformer. Thank you.

This article is contributed by Rudi Wijaya from North Sumatera Medan (Indonesia). He is an electronics repair hobbyist and specializes in TV, Monitor and DVD repair. He usually repairs the items that belong to friends and family.

 

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You may also check out his previous repair article below:

https://www.jestineyong.com/dvd-repair/

 

Likes(252)Dislikes(0)

43 Comments

  1. Gabriel Maree

    September 5, 2014 at 3:09 pm

    Excellent write up have broken DVD will apply.

    Likes(0)Dislikes(0)
    • Rudi Wijaya

      September 6, 2014 at 2:11 am

      You are welcome !

      Likes(0)Dislikes(0)
      • mario godinez

        September 6, 2014 at 10:53 am

        i'm always your website. thanks for the add'l learings

        Likes(0)Dislikes(0)
  2. NEJIB

    September 5, 2014 at 3:37 pm

    Good article, good work, keep on my friend.

    Likes(1)Dislikes(0)
    • Rudi Wijaya

      September 6, 2014 at 2:12 am

      You are welcome my friend !

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

    September 5, 2014 at 4:26 pm

    Good article ! have you got the same EMI Filter coil how did you manage? and as you have mentioned that you have checked ESR of capacitor with homemade meter is it accurate ?? please share some information if you don't mind.

    Likes(0)Dislikes(0)
  4. Martin

    September 5, 2014 at 4:50 pm

    Brilliant. I am currently repairing a dvd player. just waiting on some parts to arrive. Its nice to see that people still fix these things as the usual course of action is to bin it and buy a cheap replacement from the local supermarket.

    Likes(0)Dislikes(0)
    • Robert

      September 5, 2014 at 7:54 pm

      I don't bin anything except maybe some cases. I keep every board and component I touch if the components are tested good.

      Likes(1)Dislikes(0)
  5. Venu gopal

    September 5, 2014 at 7:15 pm

    thanks for the article.
    In my workplace, i just replace the dvd smps board, in such cases. Here in local market dvd/dth smps is available at damn cheap price.(just 1.3 euros)

    Likes(1)Dislikes(0)
    • Robert

      September 5, 2014 at 7:49 pm

      Hi Venu,
      Where is the fun in that? Not everybody works on them for a living. I'm a hobbyist and fix them for the fun of it & to have something positive to do with my time since I'm disabled.
      Also, when people fix devices & send in an article, we all get to enjoy reading and learning from it - that's why we are here! And Rudi also says that he is a hobbyist as I am.

      Likes(4)Dislikes(0)
      • Venu gopal

        September 5, 2014 at 10:30 pm

        hi Robert,i KNOW that.
        Totally agreed.

        Likes(0)Dislikes(0)
    • Rudi Wijaya

      September 6, 2014 at 1:47 am

      You are welcome. I one hundred percent agreed with robert. I am not doing this for a living. I can just replace all the set as a new set just about 2 dollars. But robert already answer it, we have fun to repair, not just about replace full set. The disadvantage about new set power suply is we can choose the exact size for we needed. They just sell two types and size. You can just repalce it if you want to save the time as electronics repair professional. That is fine.

      Likes(1)Dislikes(0)
  6. Robert

    September 5, 2014 at 7:33 pm

    Nice job Rudi. Thanks for the article. The alligator clips on the test light bulb is a good idea.

    Likes(1)Dislikes(0)
    • Rudi Wijaya

      September 6, 2014 at 2:03 am

      You are welcome !

      Likes(0)Dislikes(0)
  7. Mike

    September 5, 2014 at 7:48 pm

    Good job. Thanks for sharing it.

    Likes(0)Dislikes(0)
    • Rudi Wijaya

      September 6, 2014 at 2:04 am

      You are welcome !

      Likes(0)Dislikes(0)
  8. Anwar Shiekh

    September 5, 2014 at 8:24 pm

    I used to repair for friends, but found the old adage "business and friendship don't mix" had some truth in it.

    Likes(1)Dislikes(0)
    • Rudi Wijaya

      September 6, 2014 at 2:10 am

      Hahaha. Sometimes that is true, but I don't have many problem with it for now. Sometimes my friend owe me, but they always pay me.

      Likes(0)Dislikes(0)
  9. Kevin

    September 5, 2014 at 8:27 pm

    Great work! It's better to recycle via the repair bench!

    Likes(1)Dislikes(0)
  10. gcharal

    September 5, 2014 at 8:32 pm

    Hello Rudi,
    good info by the way.
    I have a question for you.
    Is there another method to test coils beside Ring tester?

    Thanks a lot and keep going!

    Likes(0)Dislikes(0)
    • Rudi Wijaya

      September 6, 2014 at 1:51 am

      As far as I know, the inductance value will change if the coil is bad. Bear in mind, not always, I have ever found one still have good inductance value. You can ask mr jestine for more advance advice.

      Likes(0)Dislikes(0)
  11. Andre Gopee

    September 6, 2014 at 12:17 am

    Nice Job and well put. I agree 100 percent with Robert... the fun and excitement is trouble shooting and repairing something. It make us feel really great about our-self's. To all the hobbyist out there keep these type of articles coming and enjoy the repairs.

    Likes(1)Dislikes(0)
    • Rudi Wijaya

      September 8, 2014 at 10:39 am

      You are welcome !

      Likes(0)Dislikes(0)
  12. Rudi Wijaya

    September 6, 2014 at 1:36 am

    I buy the emi filter in my town. Yes, they sell it, but for viper22a ic, nobody sell it. I have to buy one set dvd power supply if the ic failed, cheap and around 2 dollars. You can see the article about the add on for esr meter that i made. The esr meter based on Allan Willcox design. Very accurate and non linier, so i can see 0.1 ohms difference very clear. Thank you.

    Likes(1)Dislikes(0)
  13. Joshua oloo

    September 6, 2014 at 4:33 pm

    Thanks Mr.Rudi for the article.you inspire me alot.keep up the good work.Regards.

    Likes(0)Dislikes(0)
    • Rudi Wijaya

      September 8, 2014 at 10:16 am

      You are welcome mr joshua!

      Likes(0)Dislikes(0)
  14. reza

    September 6, 2014 at 11:08 pm

    hi
    i use this article
    by

    Likes(0)Dislikes(0)
  15. Bartek

    September 7, 2014 at 2:10 am

    Very informative. Now I will keep in mind that glue can cause short.
    Good job indeed. I wish You more successes and more happy customers
    As I know already ,smile on someone face is worth more than money and time spend on repairs
    Best wishes
    Bart

    Likes(0)Dislikes(0)
    • Rudi Wijaya

      September 8, 2014 at 10:20 am

      You are welcome ! I wish you success too. Yes, those glue always cause problem for power supply, they attached it to keep the components fixed when shipping.

      Likes(0)Dislikes(0)
  16. Raymundo Saura

    September 7, 2014 at 10:02 am

    i am very happy happy sir learning from you thanks

    Likes(0)Dislikes(0)
    • Rudi Wijaya

      September 8, 2014 at 10:21 am

      You are welcome !

      Likes(0)Dislikes(0)
  17. Muiddin

    September 7, 2014 at 3:15 pm

    that is a very interesting repair article really helpful. Thanks

    Likes(0)Dislikes(0)
    • Rudi Wijaya

      September 8, 2014 at 10:25 am

      You are welcome !

      Likes(0)Dislikes(0)
  18. Luis Estrada

    September 8, 2014 at 3:41 am

    Excellent trouble shooting and repair. Noticed you made your own ESR meter. I'd be thrilled to have the details for making one. Thank you for sharing your experiences.

    Likes(0)Dislikes(0)
    • Rudi Wijaya

      September 8, 2014 at 10:30 am

      You are welcome ! You can google to find Allan Willcox esr meter.
      By the way Mr Jestine sell Blue Esr Meter, try to ask him about the details.

      Likes(0)Dislikes(0)
  19. Taofiki ishola Akinleye

    September 9, 2014 at 5:13 am

    Thanks for the article and the advice,in such cases I do changed the complete power board.pls keep it up.

    Likes(1)Dislikes(0)
  20. syphou

    September 10, 2014 at 1:59 pm

    I repair everyday is difficult because device electronic is very small
    such as resistor capacite ic ..... not number

    Likes(0)Dislikes(0)
  21. Salim Khan

    September 11, 2014 at 10:27 pm

    How you make your "homemade ESR Meter", Please share.

    Likes(0)Dislikes(0)
  22. WAKEEL

    September 22, 2014 at 5:17 am

    SIR . PLEASE CAN I GET THAT HOMEMADE ESR METER CIRCUIT DIAGRAM ?.

    Likes(0)Dislikes(0)
  23. Marulitua Hutabarat

    October 15, 2014 at 7:38 pm

    Hi Rudi.
    Nice article to share.
    I live in Medan too.
    Where you stay?
    Please let me know your email address.
    Thank you.

    Rgds,
    Maruli

    Likes(0)Dislikes(0)
  24. Berei Daniel

    October 30, 2014 at 5:37 pm

    dear mr. Rudi Wijaya, can you tell me more about your homemade ESR meter, after who's schematic have you build it ? Best regards
    Daniel

    Likes(0)Dislikes(0)
  25. Momchil

    January 16, 2015 at 3:43 am

    Nice article. I've seen a lot of brown glue(sometimes it even gets so dark it looks like black) on capacitors in SMPS for PC especially on their top and bottom but the capacitors are not always dead. I wonder why would anybody put a conductive glue on such items? Maybe just the glue is getting conductive with time? Or is it a trick for programmed/intentional aging - you know to make them go bad after some years of use so you buy a new one?

    Likes(0)Dislikes(0)
    • Robert Calk

      January 16, 2015 at 8:21 am

      Hi Momchil,

      They put the glue on to help protect the components from vibrating loose during shipping.

      Likes(1)Dislikes(0)

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