LG 1942TQ -stinks

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • smason
    Badcaps Legend
    • Feb 2010
    • 1652
    • Canada
    #1

    LG 1942TQ -stinks

    Here's a weird one.
    LG 1942TQ from work. Was functioning fine, user complained that it smelled bad.
    Help desk guy agreed, and replaced it. 'course I snagged it

    Took it apart expecting an arcing lamp, melting connector, oozing cap or something obvious.
    Nothing really. Power supply pcb has some heat marks, nothing fails the sniff test (powered off) and the Samyoung and Samwha caps all have flat tops.

    Wait a sec. What's that?
    The big mains cap is bulged! Never seen that before.
    Measured (in circuit) the ESR micro says "what cap? I don't see a cap"
    My Fluke 87 says, .4uf or so. Will pull it and measure it later.
    Attached Files
    36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....
    Tags: None
    • smason
      Badcaps Legend
      • Feb 2010
      • 1652
      • Canada
      #2
      Re: LG 1942TQ -stinks

      Originally posted by smason
      The big mains cap is bulged! Never seen that before.
      Measured (in circuit) the ESR micro says "what cap? I don't see a cap"
      My Fluke 87 says, .4uf or so. Will pull it and measure it later.
      Pulled it and it's definitely toast. I just did a cap order, so will wait until I have more stuff to order, or perhaps I'll steal one from one of my spare boards.
      'course on all of my spare boards you can't read the cap values on the large cap, and they're glued down.
      36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....

        Comment

        • sabre504
          Badcaps Veteran
          • May 2010
          • 449
          • United Kingdom
          #3
          Re: LG 1942TQ -stinks

          Have had a spate of these lately ,
          some swollen and some with corroded legs and a few suffering from both .
          Mainly in 22" Technika's and Cello's.

          But as a rule you don't see it often

            Comment

            • smason
              Badcaps Legend
              • Feb 2010
              • 1652
              • Canada
              #4
              Re: LG 1942TQ -stinks

              Originally posted by sabre504
              some with corroded legs
              Yeah. one of the legs fell off when I was removing it.
              36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....

                Comment

                • trodas
                  Badcaps Veteran
                  • Jan 2006
                  • 770
                  • Czech republic
                  #5
                  Re: LG 1942TQ -stinks

                  Samwha caps - known crap. Be lucky it did not catch fire yet. Replacement is easy to get on Digi-key, tough
                  "It is dangerous to be right in matters on which the established authorities are wrong." - Voltaire
                  "I believe that all the people who stand to profit by a war and who help provoke it should be shot on the first day it starts..." - Hemingway my config - my caps

                    Comment

                    Previous template Next

                    Related Topics

                    Collapse
                    • CapLeaker
                      Need Stanley SMCU-5 KHR1780 Excavator Controller schematic
                      by CapLeaker
                      Anyone has a schematic for a Stanley SMCU-5 KHR1780 Excavator Controller to share? Its a 24V system. The one I am working on has all 4 MOVs burnt, a hole in the board where the 5 electrolytic capacitors and that heat sink is and a small smd cap decentegrated. The blown MOVs smells so baaaaaad. My truck stinks and by now half of the house too! Just waiting for wifey to ...
                      1 Photo
                      05-13-2025, 07:04 PM
                    • 5mall5nail5
                      Help identifying connector for ASUS 4090 Strix RGB LED connector
                      by 5mall5nail5
                      Hi All -

                      I had replaced my ASUS 4090 Strix cooler with a waterblock and put the stock cooler on the shelf. Was moving it and snagged my sweater on the connector and pulled the wires out of the pins on the RGB connector. I tried to get them back on but its too small so I opened the stamped pins and tried to solder but its not a good repair and the wire broke on reinstallation.

                      Looking to replace the connector on the cable side and get pins to crimp onto a new cable. Bought random JST and such but nothing is correct. Can anyone help identify the connector and possibly matching...
                      05-04-2025, 07:47 AM
                    • olliec420
                      Nvidia Tesla P40 (Q0V80A) Enterprise GPU, I put the power cable on backwards.
                      by olliec420
                      Ok I screwed up big time and hoping I can fix. I will break down what happened and the images.
                      • Have Dell PowerEdge R730
                      • Bought Tesla P40
                      • Researched power cables and order correct one, pic had two black connectors in photos
                      • Power cable arrived, same connectors (EPS-12v) on both ends
                        Both sides are the same plug but different colors. The listing stated that colors would be random. OK I plug it in, red side to riser board, black side to GPU.
                      • Power on.
                      • System immediately turns off.
                      • I only had 1 PSU plugged in and it was blinking orange, I thought I drew too much so I plugged in
                      ...
                      11 Photos
                      02-11-2025, 07:29 PM
                    • sigh45
                      Bowers & Wilkins PX7 S2e Internal Photo's
                      by sigh45
                      This is a long shot but does anyone have a photo of the USB Charge board wiring? I have a pair here that somebody has used a blowlamp to get the port off, Luckily the tracks are all good but some of the NC and filter cables were desoldered. A new port is fitted but there isn't a sniff of any marking on either side of the headphones as to the cables use. Here's hoping

                      Cheers

                      Simon
                      11-09-2024, 07:46 AM
                    • vince88
                      Dell Optiplex GX620 with Oozing Rubycon caps
                      by vince88
                      Unit is a Dell Optiplex GX620 tower with an Intel Pentium-D945 3.4GHz, 3.5GB RAM DDR2 and a 250GB SATA drive.
                      Units does not boot up. MoBo (see pic 'mobo') has two clusters of oozing caps, one around the CPU/GPU (see pic 1) and one around the extra 4-pins 12V power plug (see pic 2). All caps are Rubycon, see pic 3....
                      11-02-2017, 11:07 PM
                    • Loading...
                    • No more items.
                    Working...