Announcement

Collapse
No announcement yet.

LC-46LE630E bad video after some minutes, phantoms or what?

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
    #1

    LC-46LE630E bad video after some minutes, phantoms or what?

    Hi, this tv i have bought with the defect (also as said from the seller) of perfect audio video from the power on and after about 10 miutes artifatcs on all the screen that fades to an almost dark video with dark streaks. Tests made are that when defect occured AVDD and Von came off, pulled off the tcon and made some tests, especially warming up with the soldering iron on the chips and discrete semicon apart the main chip doesn't revealed the one sensible to hot, by my error i have put the iron's tip on a metal part of a transistor on the board supplied externally by a PSU, the tip is at ground and the fuse blewn, replaced the fuse the tcon worked again, but now it never stop working!! After 6 hours of function, switched on 2-3 times, no issues.. Like my other recent experience with Sharp panels ther's something magic that restores full function after only some simple tests on the board (maybe the running by an external PSU). So what i have to think?

    Thanks!

    THE TV IS SHARP MODEL
    Last edited by Davi.p; 02-01-2018, 06:48 AM.
    Tags: None
    #2
    Re: LC-46LE630E bad video after some minutes, phantoms or what?

    Cold solder joints that get reconnected after handling?? Look at the pin connectors, etc for loose or weak joining. Sometimes they don't look bad but internally they are. Re-heat all joints if possible.

    Comment

      #3
      Re: LC-46LE630E bad video after some minutes, phantoms or what?

      Ok so if i will put pressures on different point while switched on i might be see the defect...? I will try...

      Comment

        #4
        Re: LC-46LE630E bad video after some minutes, phantoms or what?

        So you are supplying an external power supply 12v tcon? Possibly drop o n voltage from original source was your problem?
        Did I leave the soldering iron on?

        Comment

          #5
          Re: LC-46LE630E bad video after some minutes, phantoms or what?

          No external supply only on some of the tests..
          No defect on the tv PS cause now tv is working from too much hours... some hitting tests then i'm near to resell it as working..
          Last edited by Davi.p; 02-01-2018, 01:18 PM.

          Comment

            #6
            Re: LC-46LE630E bad video after some minutes, phantoms or what?

            Hi, no hit or pressures can make difference so i have closed the tv... bye

            Comment

              #7
              Re: LC-46LE630E bad video after some minutes, phantoms or what?

              Originally posted by Andrew F. Ali View Post
              Cold solder joints that get reconnected after handling??
              Oh freaking looool...
              Last edited by RJARRRPCGP; 02-02-2018, 08:50 PM.
              ASRock B550 PG Velocita

              Ryzen 9 "Vermeer" 5900X

              32 GB G.Skill RipJaws V F4-3200C16D-32GVR

              Arc A770 16 GB

              eVGA Supernova G3 750W

              Western Digital Black SN850 1TB NVMe SSD

              Alienware AW3423DWF OLED




              "¡Me encanta "Me Encanta o Enlistarlo con Hilary Farr!" -Mí mismo

              "There's nothing more unattractive than a chick smoking a cigarette" -Topcat

              "Today's lesson in pissivity comes in the form of a ziplock baggie full of GPU extension brackets & hardware that for the last ~3 years have been on my bench, always in my way, getting moved around constantly....and yesterday I found myself in need of them....and the bastards are now nowhere to be found! Motherfracker!!" -Topcat

              "did I see a chair fly? I think I did! Time for popcorn!" -ratdude747

              Comment

                #8
                Re: LC-46LE630E bad video after some minutes, phantoms or what?

                The problem could have been a bad panel. I had the same with a philips , fine on start up and suddenly a black haze on the screen. Like a curtain......

                You could have tried to pull the tabs on the side of the LCD.
                I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

                Comment

                  #9
                  Re: LC-46LE630E bad video after some minutes, phantoms or what?

                  don't remembers me a panel problem, i'm almost sure the fault was in tcon, a panel can't make fine pitch artifacts like this.
                  Last edited by Davi.p; 02-03-2018, 02:04 AM.

                  Comment

                  Previous template Next
                  Working...
                  X