Shorted BU3150BF And Open Resistors In Philips DVD Mini Player
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:
https://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:
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:
Next, I continued to check all components in the power supply board and found the main power transistor with the part number BU3150BF shorted.
Below is the datasheet of the transistor and you can click on the photo below to view the 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:
Once the components were replaced and powered on it worked like charm.
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:
https://jestineyong.com/how-to-repair-blue-screen-in-tv/
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Parasuraman
September 19, 2017 at 4:40 pm
Excellent! As usual your professional direct approach!
suranag Electronics
September 20, 2017 at 1:45 pm
ok Thanks Mr,Parasuraman
Michel
November 13, 2024 at 5:27 am
Hello Suranga, thank you for your explanations. I think I have the same problem. R902A is burnt but what is its value?
Thanks in advance for your help.
Michel
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.
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.
https://jestineyong.com/how-to-repair-no-power-problem-in-philips-mini-dvd-player/
Yogesh Panchal
September 19, 2017 at 10:15 pm
Excellent! suranga
suranag Electronics
September 20, 2017 at 1:46 pm
Thanks Mr. yogesh.
Robert Calk
September 20, 2017 at 12:46 am
Good job, Suranga. Thanks for sharing your experience.
suranag Electronics
September 20, 2017 at 1:47 pm
Hi Mr,Robert,
Thanks you !
Chatura
October 27, 2017 at 12:55 pm
I have a player having same issue. I'm in Colombo. looking for a place to get it done
Oravan
September 8, 2020 at 10:46 pm
Hello I can not get BU3150BF please can not advise replacement with regards Viest
Lopez Olivier
January 15, 2022 at 5:17 pm
Hello Surang
Excellent post that may help me to fix my exact same item.
In y case, I also need to change the EE16-40mH FGT flyback SMPS transformer.
My issue is that I cannot find this exact reference and do not fidn any equivalence. Could you please guide and tell me which one to buy?
Thanks in advance
Olivier