LG 32LB75 PSU not working

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Dragunov
    Member
    • Nov 2013
    • 49
    • Croatia
    #1

    LG 32LB75 PSU not working

    Hello guys i have here LG 32LB75...

    PSU is YP32DVR ===> P/N: EAY43596801 rev. 1.0

    It has a blown 250v 5a fuse marked in the picture... and previously changed by someone else caps that are again blown also marked in the picture... Update: there are signs of post production soldering on resistors R253 and r254 also located near blown caps.

    I dont have original values of blown caps... and what should i also check before I replace all of this... if it will work at all.
    Attached Files
    Last edited by Dragunov; 11-14-2016, 06:54 AM.
    Tags: None
    • Dragunov
      Member
      • Nov 2013
      • 49
      • Croatia
      #2
      Re: LG 32LB75 PSU not working

      I changed all the caps and a fuse... Fuse blew up again... Something is shorted... What should i do next?
      Last edited by Dragunov; 11-18-2016, 03:23 AM.

        Comment

        • ReeceyBurger123
          Never Give Up !
          • May 2014
          • 7325
          • Britain
          #3
          Re: LG 32LB75 PSU not working

          Test for short circuits lol mainly devices mounted on a heatsink.
          Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

          https://www.facebook.com/Telford-Tel...7894576335359/

            Comment

            • Dragunov
              Member
              • Nov 2013
              • 49
              • Croatia
              #4
              Re: LG 32LB75 PSU not working

              Newsflash... we have a hole on U101...

              Cant upload picture to site so here it is...

              http://prntscr.com/d8s9g0
              Last edited by Dragunov; 11-18-2016, 03:40 AM.

                Comment

                Previous template Next

                Related Topics

                Collapse
                • MMH3
                  Dell Optiplex 5050 SFF - strange behavior and service_mode jumper not working anymore
                  by MMH3
                  Hello,

                  i have many 5050sff. all of them, and how i experienced over many years for all about 250 DELLs goin through my hands, are fully flashable and can be serviced in any way when the service_mode jumper is set.
                  Never ever i experienced problems with that.

                  Now i have one 5050sff machine, where this jumper isnt working at all.
                  I do not get the normal messge that the jumper is set when booting and a short test with FPT just confirms this. Everything is locked -->> EVEN for reading !?

                  The history of the machine is that i used it in my office...
                  03-23-2025, 09:28 PM
                • DynaxSC
                  GIGABYTE X299 AORUS ULTRA GAMING - SATA PORTS 4-7 NOT WORKING ???
                  by DynaxSC
                  Hi,

                  I have the above mentioned bord after repair, which was related to a lot of missing smd devices on the back of the board.
                  There were almost 20 devices missing, caps, resistors and some diodes/mosfets.
                  The board is generally working now, all PCIe ports are working, Windows installs normally.

                  However I have a problem with SATA ports 4-7 (the board has 8 SATA ports) - disks are not beeing recognized by the BIOS neither by Windows (which is usually normal in case BIOS does not recognize them).
                  The SATA 4-7 driver network is quite simple chipset<->buffers/drivers<->SATA...
                  03-10-2025, 12:27 PM
                • obelix24
                  Macbook Air 2020 (a2179) - touch id not working
                  by obelix24
                  Hi i have one Macbook Air 2020 where touch ID is not working (it's not scanning fingerprints). Touch ID was working before, there is no error message during scanning fingerprint it's just not scanning on screen you can see only fingerprint but there are no red updates as when it's working. Power button is working fine.

                  I've checked boardview and also schematics but i'm not able to find anything related to TouchID ... i have similar issue on a2338 where there was problem with PP3V0_TOUCHID​ and after replacing UT610 it was working but here i'm not able to find anything related to...
                  02-09-2025, 12:57 PM
                • myth77
                  BOE NV156FHM-NY8
                  by myth77
                  hello to everybody i need help. It is a laptop screen from the title and i dont usually fix them (only laptop and desktop motherboards) but i decided this time i will try and i need your help.
                  The laptop had shorted 19v main line that goes directly to this lcd with blown fuse on the motheroboard. I believe that somebody tried to check something with battery plugged and now we have what we have. On the laptop motherboard i replaced the fuse and laptop is now working but this screen is a problem.
                  In the attachment i am sending you what led board looks like in two parts. I marked with...
                  01-04-2025, 08:01 AM
                • hopkok
                  Lenovo Legion 16ITHg6 NM-D721, keyboard not working, LEDs too
                  by hopkok
                  Hi masters, I need your help.

                  I am working on Lenovo Legion 16ITHg6
                  Motherboard number NM-D721, no BV, no schematic but I am attaching very closes ones.

                  INPORTANT: My motherboard version is with IT8258 IC, that is controlling keyboard and RGB LEDs.

                  My problem is on UI142, +3VALW_AG is not stable, floating from 0V to 3,3V.
                  AGKB_PWR_EN_N signal is floating too (that is why+3VALW_AG not stable).
                  Power LED is not working as well, power button working well.
                  UI26 ??? is there any firmware too? Powered by +3VALW_AG.

                  Motherboard...
                  05-04-2025, 09:35 AM
                • Loading...
                • No more items.
                Working...