Telefunken TLEDD-32HDR no back light

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  • Superbee_dad
    Sharp 80” long short flash backlight error - Help
    by Superbee_dad
    Hello Sharp TV experts
    Our Sharp LC-80LE642U displays one short one long flash error code which is a backlight error. I went into service mode and there were 8 lamp error counts recorded. I reset the count to 0 and did a reset. The last monitor error cause was 16 B00014639:12. 16 is the code for backlight error. I tried to power the tv up but went back into error mode.

    > I checked voltages on the power supply board and they all check out .. including 3.28 volts at the error pin.
    > There is power to the cpu and T-CONN and no faults found there. The cpu has a flashing...
    01-24-2025, 11:51 PM
  • howardc64
    A1312 (27” iMac 2009-2011) A1407 (Thunderbolt Display) A1316 (Cinema Display) Display Black Screen Repair
    by howardc64
    Problem

    This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached....
    08-04-2024, 10:36 PM
  • sam_sam_sam
    Lift Master Garage Door wall switch display / motion sensor controller display disappeared no back light
    by sam_sam_sam
    This happened last Saturday and today I finally had time this morning before I went to work to replace two non brand capacitors

    I will let you be the judge weather or not these are bad or not according to the blue ESR meter that I am using

    I am comparing them to a brand new one that I installed

    The display came back on and the programming was not lost which I was surprised by I would have thought that when the display went blank that so did the memory as well

    I going to let it run for several days before I remount back on the wall next to the...
    09-05-2024, 06:48 PM
  • stylishconsultant
    un60j620dafxza - Samsung No Display Problem
    by stylishconsultant
    Hi All,

    Need help.

    I have a samsung un60j620dafxza led tv. When I plug it in it has no display, no sounds, and no standby lights.

    So I opened the tv and disconnected the power to the mainboard and the backlight powered up. This according to many people says that this is a mainboard
    problem. I checked the voltage coming from the stb and I read 1.3 volts on pins 1,3,5 and 7 which are low volts instead of 13 volts which i think the lcd panel
    might be drawing too much power from the power supply that it prevents the right voltage going to the mainboard....
    09-04-2024, 03:26 AM
  • sorrowfulfloyd
    Samsung UE32J5373AS Weird LED Problem
    by sorrowfulfloyd
    Hi all, first time seeing a LED problem this weird so I wanted to discuss with y'all before handing back this TV to my costumer.

    This TV came to my shop with no picture but sound present. So I thought ok this must be a LED problem and I shine a light with my phone's torch amd and yup I see the image. So I disassemble it and before changing the LEDs I check the motherboard voltages (this unit works with an external 16V DC brick) and I see 54 volts at the input pin of LED strip, considering this TV has 2 strips of 7 LEDs which at 3~ volts it must be equal to like 42 volts. I remove...
    12-23-2022, 07:00 AM
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