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DVD Player Repaired

By on February 4, 2015

This DVD Player was given to me by my brother in law, and the complaint was it was not turning on.

dvd player repair

The brand name  is PARKER Model: DVU230.

dvd player repairs

First thing done was to take out some screws to remove the upper cover, an easy job in this device.

The SMPS was extracted from the unit for checking it on.

dvd player repairingdvdplayerrepair

The first components tested on were the e-caps, and guess what? (look at the photo below).

dvd player repairings

A bad e-cap was found, it had a high ESR Value, and its values were 1000µF/10v. A good one should have about 0.02 to 0.03 ESR ohm but the bad one had 7.5 ESR Ohm which is way out causing the 5 volt line to drop to only few volts. If the mainboard did not get a steady 5 volt, it would not function thus you will not see any display in he front screen of the dvd player. It was replaced with a similar value but with different brand and when the unit was turned “On” the DVD Player started to work normally.

dvd playerrepair

Mission accomplished.


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

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  1. Robert Calk

    February 4, 2015 at 10:01 pm

    Good job Humberto. Now you have a working DVD player to use or sell.

    • Humberto

      February 6, 2015 at 11:41 pm

      Hi Robert, how are you? I only repair what friends or customers give me. This time I´ve repaired two DVD players. I´m repairing another one now, brand WENTAI.

      By the way, could you give me the website where you got your HAKKO desoldering pump?

      • Robert Calk

        February 7, 2015 at 10:06 am

        Hi Humberto, I'm doing fine, thanks. I think I bought mine from

  2. Corriete

    February 6, 2015 at 5:17 am

    ok sir another from the dumpster.good work and of course thanks to blue ESR METER

    • Humberto

      February 6, 2015 at 11:50 pm

      You are right. Have a good day

    • Momchil

      February 8, 2015 at 7:06 pm

      No it wasn't because of the blue ESR meter... On the photo it is obvious the e-cap was bulged (defective) so no point in using the ESR meter but simply changing it with a new one.

  3. Amir Mukhtar

    February 6, 2015 at 1:00 pm

    Good Job Mr. Humberto Rodriguez to repair DVD .

    Keep Sharing your expert repair articles.

    thanks you
    Amir Mukhtar

    • Humberto

      February 6, 2015 at 11:52 pm

      Ok Amir, I´ll keep sharing my articles.

  4. Mervin

    February 6, 2015 at 1:05 pm

    Nice job, mission complete!
    Why not test cap in circuit with esr meter?
    This should possible i guess?

    • Humberto

      February 6, 2015 at 11:44 pm

      Hi Mervin, I really tested the cap in the circuit, it had a high ESR and then I desoldered it from circuit to test again.

  5. Abdul

    February 6, 2015 at 4:47 pm

    Thanks Mr Humberto for sharing the article.
    Not forgetting Mr Jestine Yong for introducing the Blue ESR on this website.
    Abdul (Singapore)

    • Humberto

      February 6, 2015 at 11:54 pm

      Yes Abdul, I think the Blue ESR Meter is a valuable tool, and every tech must have one.

  6. Feeshy

    February 7, 2015 at 8:43 am

    Great Job, Humberto! I just love it when the bad part jumps out like that! I've fixed lots of flat-screen monitors with bad caps in the SMPS. Keep up the good work... Feeshy

  7. peter

    February 7, 2015 at 11:44 am

    Very clear & helpful presentation of a simple repair.
    And a reminder of where to look first & the value of an ESR meter.

  8. Tito

    February 7, 2015 at 4:31 pm

    Good job Humberto. In Malawi ESR meters are no where to be found and we struggle.

    • Humberto

      February 10, 2015 at 10:51 pm

      Hi Tito, you can surf on

  9. Andre Gopee

    February 8, 2015 at 8:05 am

    Nice Job Humberto, The Blue ESR meter is really a true life saver.

  10. opheas

    February 9, 2015 at 1:18 am

    i have a dvd player which is not switching ON.its a Luckystar Dvd player.i dnt have an ESR to test the capacitor like u did and i tested the fuse and its not seeing any inflated capacitors.hw do i test the components i only have a digital multimeter.The problem was caused by violent rains we had recently

    • Humberto

      February 10, 2015 at 11:20 pm

      The ESR meter is very helpful, sometimes the e-cap is not bulged and it has a high ESR. First beging testing all the voltages in the SMPS.


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