Announcement

Collapse
No announcement yet.

UPDATE: LN-T5271F FIXED backight on sound ok, no picture

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    UPDATE: LN-T5271F FIXED backight on sound ok, no picture

    Replacing the T-CONN board fixed my problem. the symptoms were a very intermittent BACKLIGHT ok, SOUND ok, NO picture. after troublshooting and with advice by budm, tom66 and a number of other fourmites it's fixed.

    I was down to either the main board or T-conn board. more researching revealed about 85% of the time with those symptoms, the T-conn was the culprit. I bought a T-conn on ebay for $32. power cycled it about six times and each time the picture came right up. before, 98% of the time the picture would not come on.

    now I have the bad t-conn. is it worth troubleshooting while I have the set apart on the bench. I'd be willing to try if I had some things to check. I don't have a scope for signal tracing.

    old t-conn had a good fuse and 12V on each side of the fuse.

    thanks again for all the advice and guidance.

    ilikesteel

    #2
    Re: UPDATE: LN-T5271F FIXED backight on sound ok, no picture

    "bump"

    Comment


      #3
      Re: UPDATE: LN-T5271F FIXED backight on sound ok, no picture

      added some pictures of the set and T-conn board. the T-conn has 12V going to the board and on both sides of the fuse. cannot find a schematic for this set. any voltage points to check beyond the fuse?

      thanks
      Attached Files

      Comment

      Working...
      X