Shorted BU3150BF And Open Resistors In Philips DVD Mini Player

By on September 19, 2017
4.7 ohm smd resistor faulty

 

 

 

 

 

 

 

 

 

 

philips mini dvd repair

The complaint of this Philips DVD mini player was no power.




Back in the April this year I have posted a similar model with the same problem (no power) and it was due to resistor problem. You can read the post in the below link:

http://jestineyong.com/how-to-repair-no-power-problem-in-philips-mini-dvd-player/

As for this case, when the cover was opened I could see two boards-look at the photo below:

fix philips mini dvd

I focused on the power board first since the complaint was no power.




With visual inspection I saw two SMD resistors were burnt and checked further and found another low ohm resistor was opened circuit too-see the photos below:

dvd board repair

fix dvd player

Next, I continued to check all components in the power supply board  and found the main power transistor with the part number BU3150BF shorted.

bu3150bf transistor

Below is the datasheet of the transistor and you can click on the photo  below to view the datasheet:

bu3150bf datasheet

After spending some times to check on the power supply side I concluded that there were only four bad components-see the photo below:

4.7 ohm smd resistor bad

Once the components were replaced and powered on it worked like charm.

how to repair philips minidvd player

 

suranga

This article was prepared for you by Suranga Bandara who owns an Electronics repair shop in Anuradapura, Sri Lanka.




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Note: You may check out his previous post in the below links:

http://jestineyong.com/how-to-repair-blue-screen-in-tv/

 

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8 Comments

  1. Parasuraman

    September 19, 2017 at 4:40 pm

    Excellent! As usual your professional direct approach!

    Likes(2)Dislikes(0)
    • suranag Electronics

      September 20, 2017 at 1:45 pm

      ok Thanks Mr,Parasuraman

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  2. Albert

    September 19, 2017 at 5:43 pm

    I assume that you were able to find the 4.7 ohm resistor value still readable on it? And that same goes for both broken open smd resistors too. Thanks for the article.

    Likes(3)Dislikes(0)
    • Suranga Electronics

      September 20, 2017 at 1:47 am

      Hi. Mr Albert. Thank you.

      i have done before this same type job. i got help to find Resistor value.

      http://jestineyong.com/how-to-repair-no-power-problem-in-philips-mini-dvd-player/

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  3. Yogesh Panchal

    September 19, 2017 at 10:15 pm

    Excellent! suranga

    Likes(1)Dislikes(0)
    • suranag Electronics

      September 20, 2017 at 1:46 pm

      Thanks Mr. yogesh.

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

    September 20, 2017 at 12:46 am

    Good job, Suranga. Thanks for sharing your experience.

    Likes(1)Dislikes(0)
    • suranag Electronics

      September 20, 2017 at 1:47 pm

      Hi Mr,Robert,

      Thanks you !

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