HP Inkjet printer main board bulging cap failure

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • howardc64
    Badcaps Veteran
    • Jun 2017
    • 525
    • United States
    #1

    HP Inkjet printer main board bulging cap failure

    Fixed a 10yo HP inkjet with a bulging cap on the digital computer power rails (1 to 5V). Unstable voltages causing these inkjets to not boot properly or crash quickly. Seems like more and more of these are showing up nearing the 10 year mark. Board design seem to look similar for many of these printers.

    https://h30434.www3.hp.com/t5/Printi...t/true#M997922
    Tags: None
    Previous template Next

    Related Topics

    Collapse
    • cheeky2
      Is it possible to upgrade from a Vestel 17MB97 main board to a 17MB110 Main board?
      by cheeky2
      I suppose the real question is whether the existing pinouts from ether a 17IPS71 psu are cross compatible with a 17IPS12 psu? If they are then the exchange of the main boards should have no issues providing the screen is compatible with both main boards. Obviously you can change the screen configurations easily enough (providing you have the correct files) for the main board. Why may you ask would I do this? Well a lot of the smart features are no longer working on a Hitachi 48HBT62U main board I wish to give it a new lease of life!
      Obviously the same LVDS connector for the screen connection...
      05-25-2024, 03:27 AM
    • smile
      Brother MFC Inkjet Printer prints Unidirectional mode only?
      by smile
      Hello,



      My friend brought his MFC-5895 for repair. Same problem "No ink in the ink tubes". Quick FIX when you have 3D printed parts.

      But his printer has this problem of only printing in Unidirectional mode, else the text is blurry.



      All service manual adjustment done and make no difference.

      timing strip is OK



      See nozzle check is also out of alignment.​
      ...
      12-27-2024, 05:34 AM
    • cmlewis89
      LG 47LB5DF blown power supply board
      by cmlewis89
      Hi folks,

      I'm new to this forum. So my trusty 17-year-old LG 47" LCD recently died. As I was booting it up, I heard a hum followed by a loud bang, sounds of pieces flying around, and loss of power to the unit. Inspecting the PSU, I saw two obvious problems: a blown thermistor (bang + flung pieces) and a visibly bulging main cap. Inspecting as many components as I could with my Fluke MM, I diagnosed that the following components on the "hot side" of the board were also bad: one of the 2 main MOSFETs, main 8A fuse, small cap (25V 47uF) connected to main caps, and a blown...
      12 Photos
      09-03-2024, 07:50 PM
    • Dani_2024
      Sceptre U550CV-UMR 4K LED, Bad Caps on Main Power Board?
      by Dani_2024
      Hi and thanks in advance for any input you might provide!
      I have a Sceptre U550CV-UMRD8POTV83BB 4K LED (this is a dumb tv) that I bought new in August 2021, so It's just completed 3 years.
      Main power board model: TP.MS3683.PC821 T-Con board: N4TP546UHDPU2L_BO

      Last Sunday I was watching a dvd and fell asleep for about half hour, when I awoke the tv screen was black and couldn't get the dvd menu to show, so I changed the input to antenna and had sound but no picture, turned it off. I then got online and found this great site! ....read many troubleshooting tips and this...
      5 Photos
      10-28-2024, 05:06 PM
    • Curious808
      Brother HL-2140 laser printer: printer error (solved)
      by Curious808
      SOLVED. I removed the printer in settings, replugged and let it reinstall and it worked this time.

      Brother HL-2140 laser printer
      Windows 10

      Attempt to print and immediately get a Windows pop-up saying "Error printing". The document appears in the printer queue window with Status "Error-printing".

      Turned off printer. Unplugged, waited, replugged. Ran the Windows troubleshooter. Removed and reinserted toner cartridge. Checked for paper jam. No printer error lights. Reinstalled driver. Restarted the Spooler service. Rebooted...
      06-22-2023, 11:11 PM
    • Loading...
    • No more items.
    Working...