#127

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  • เผยแพร่เมื่อ 28 ม.ค. 2025

ความคิดเห็น • 49

  • @andymouse
    @andymouse 3 ปีที่แล้ว +6

    Great work, that PF circuit took quite a beating...cheers.

  • @repairman2be250
    @repairman2be250 2 ปีที่แล้ว +1

    Fabulous video. I happen to have this Dell monitor since about 2001 and it finally died on me. A good monitor and I still like it a lot. I will attempt to repair it. Your video is a good guide line. Thank you very much indeed.

  • @astalavistatomi
    @astalavistatomi 2 ปีที่แล้ว +1

    Excellent work, nice probing around and diagnostic. More videos like this one, please. Perfect

  • @ronniebrown8775
    @ronniebrown8775 3 ปีที่แล้ว +2

    That young man was an awesome repair

  • @martijn4740
    @martijn4740 3 ปีที่แล้ว +2

    awesome job we can all learn a huge amount from you

  • @thromboid
    @thromboid ปีที่แล้ว

    I have one of these that went "pop" last night. So far it looks like exactly the same scenario: leaky HV cap and visibly blown sense resistor. I suspect I will be following your repair to the letter. Much respect and gratitude!

    • @rkan2
      @rkan2 ปีที่แล้ว

      Did you fix it?

  • @Aerospace02
    @Aerospace02 3 ปีที่แล้ว +1

    Excellent troubleshooting. This one had a lot wrong but you never gave up!

  • @bobwhite137
    @bobwhite137 3 ปีที่แล้ว +1

    Your perseverance and knowledge are unbeatable! Many thanks for sharing.

  • @beatingbytes1692
    @beatingbytes1692 3 ปีที่แล้ว +16

    Wau! What a repair job! Great work, how many weeks did you work on this monitor and spend time on waiting for parts to arrive? I would have given up after the mains cap :)

  • @aragorn084
    @aragorn084 2 ปีที่แล้ว +1

    I had a similar failure on mine. I took a different approach to repair. I cut the positive line to the 12v external power jack, and jumpered it to the DC bus caps on the LV side. I then fed 19v in from a laptop supply using the DC jack. It's been that way for some years now and it's all good.

    • @michaeltwitchin3601
      @michaeltwitchin3601 ปีที่แล้ว

      Hey, looking for more details on how you did that. I tried putting in 19v on that port without any modifications and it turns on but then goes into power saving mode. I'm guessing if I jumper it, it would work, just not exactly sure where to place the jumper wire.

  • @daviddouard9294
    @daviddouard9294 3 ปีที่แล้ว

    Fun! I did repair the same monitor a while ago. I've documented my repair on my blog (which yt does really not want me to link here...)
    The HV capacitor had exactly the same look, and it had the exact same cascading failure.
    Thanks

  • @DrFrank-xj9bc
    @DrFrank-xj9bc 3 ปีที่แล้ว +1

    Genius repair.

  • @AltimaNEO
    @AltimaNEO ปีที่แล้ว

    Thats intense! I have a 2408WFP with sporadic power problems. But I have no idea how to test anything aside from continuity.

  • @bansci
    @bansci 3 ปีที่แล้ว

    Again a nice repair! First time I've seen you use the isolation transformer too, nice bit of kit

    • @feedback-loop
      @feedback-loop  3 ปีที่แล้ว +3

      I have shown this variable isolation transformer in several videos.

    • @bansci
      @bansci 3 ปีที่แล้ว

      @@feedback-loop ah sorry, must have missed it

  • @Langendimi555
    @Langendimi555 3 ปีที่แล้ว +1

    Nice job! I probably would have just left the pfc section out instead of waiting for the control chip to arrive, but nice to see you care about your power factor 😁

  • @OctavMandru
    @OctavMandru 3 ปีที่แล้ว +2

    Such patience is amazing. You must be a fantastic father 😊
    I think very few of us would bother with that PFC, once the ps is working. Kudos ,Sir
    Could you explain how this PFC chip is working? I suppose the load is inductive

  • @IanScottJohnston
    @IanScottJohnston 3 ปีที่แล้ว +6

    Nice repair......love it when semi-conductors fail and it requires a good old proper job.

  • @andypalm7061
    @andypalm7061 3 ปีที่แล้ว

    Nice work. very interesting.lot of damage there.Very worth repairing just for those legacy i/o's

  • @abeleski
    @abeleski 3 ปีที่แล้ว

    I very much enjoy your videos. Thank you.

  • @danielfuller2052
    @danielfuller2052 5 หลายเดือนก่อน

    great video!

  • @inlovewithi
    @inlovewithi 2 ปีที่แล้ว

    After 16 years my Dell 2407WFPb monitor made this strange noise for a couple of seconds, and then it was dead. It was about time. But I just bought one of those 450v 120uf capacitor, which was also corroded, and hopefully just replacing that will bring it back to life.

    • @feedback-loop
      @feedback-loop  2 ปีที่แล้ว

      I am afraid you might have similar cascading failure

    • @inlovewithi
      @inlovewithi 2 ปีที่แล้ว

      @@feedback-loop Yes, I'm afraid that I failed.

  • @rupertprice5508
    @rupertprice5508 3 ปีที่แล้ว +1

    Loved the the video. Motivates me not to stop ub=ntil everything is up to specification. Because it works does not nean it is fixed,

  • @lynxissiodorensis2319
    @lynxissiodorensis2319 3 ปีที่แล้ว

    Good work.

  • @youpattube1
    @youpattube1 3 ปีที่แล้ว +1

    Quite a number of failures. How can this be?
    Would you think a series of failures over time but not bad enough to make the monitor unusable?
    Or one failure leading instantly to a power surge and cascading failures?

    • @feedback-loop
      @feedback-loop  3 ปีที่แล้ว +2

      Must be cascading. Most probably started from the capacitor.

  • @Elektronika_Samodelki_Remont
    @Elektronika_Samodelki_Remont 3 ปีที่แล้ว +1

    Прекрасно снятое видео. Успехов и Здоровья Вам!

    • @feedback-loop
      @feedback-loop  3 ปีที่แล้ว +1

      Спасибо! И вам всего хорошего.

  • @jacekbanach4976
    @jacekbanach4976 ปีที่แล้ว

    Awesome job! I need exacly the same parts ! where did you get them?

  • @HRoy-ot7hy
    @HRoy-ot7hy 7 หลายเดือนก่อน

    Very nice video. I have a monitor just like this one that gets very hot after prolong use. It gets hot to a point that the monitor turns off itself. The monitor turns back on normally after it cools down. Is there a fix for this issue?

  • @jovangrbic97
    @jovangrbic97 3 ปีที่แล้ว

    Nice job!

  • @renno007
    @renno007 3 ปีที่แล้ว +2

    Nice, most of the people will give up with this repair.

  • @SidneyCritic
    @SidneyCritic 3 ปีที่แล้ว +1

    And I thought it was going to be a simple cap swap - lol -.

  • @sjn7220
    @sjn7220 3 ปีที่แล้ว

    I've fixed a few dead Dell monitors found in the e-waste at work by replacing bad caps. That’s the extent of my electronics troubleshooting abilities.

    • @1575murray
      @1575murray 2 ปีที่แล้ว

      There are capacitor kits available for the most popular Dell models as well as other monitors and TV's. I have had some success with them in the past but now I like the newer LED monitors better because they are lighter and have enhancements not present on the older LCD monitors. So I most likely won't be doing this type of repair too often in the future. Newer technology makes more economic sense.

  • @KD0CAC
    @KD0CAC 3 ปีที่แล้ว

    Seems to engineered to the point of --- if there is a failure - there is going to be a cascade of failures -- by design ?
    Thanks again

  • @newamardjmeerutoficial
    @newamardjmeerutoficial 3 ปีที่แล้ว

    Sr ji

    • @newamardjmeerutoficial
      @newamardjmeerutoficial 3 ปีที่แล้ว

      Hindi language please type screen pr 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

  • @TKomoski
    @TKomoski 3 ปีที่แล้ว +1

    I bet the shipping costs on those parts cost more than the monitor

    • @TheFool2cool
      @TheFool2cool 3 ปีที่แล้ว +1

      Shipping is free over £30 from most suppliers, I always have some other bits and pieces I can throw into an order to make it up

  • @urusterym
    @urusterym 3 ปีที่แล้ว +1

    Tell me what kind of accent the author has?

  • @jdmccorful
    @jdmccorful 3 ปีที่แล้ว +1

    You don't stop! Good work. Thanks for the look.