UN55C8000 clicking on and off

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  • Sisko
    Onkyo-593 No power and now clicking sound
    by Sisko
    Hi all!!

    Ok just got a Onkyo SKW-593 sub woofer that has no power person told me that it smoked and that his GF let the volume full when she powered off the amp and when he came to turn it on the sub played but then suddenly smoke was coming out, didn't say from where. So opened it up and saw a resistor made of metal (pic) but can't see any writing on metal par so what ever was written on it was burnt. So I'm kinda stuck here with this. I did ask for a repair or schematics in the other group section and waiting for this but I hope someone here might lend me a hand to try and identify...
    Schem
    4 Photos
    10-03-2025, 02:18 PM
  • asr
    Finding replacement diode iPad Pro 3rd gen A1701
    by asr
    Hello, I am looking for help to replace a damaged diode. The tristar was replaced and a diode was damaged in the process. I have a picture of the diode but dont have an exact donor. I mostly have macbooks for donors and only a few ipad and iphone boards. Diode part number: DSF01S30SCAP
    Im not sure where to find the ipad board number. Anybody have an idea where else this diode is used on other boards? Thanks....
    07-09-2024, 06:24 PM
  • unimatrix93
    TV backlight zener diode
    by unimatrix93
    Hello everyone, I'm repairing an LG TV backlight and I noticed some strange behavior when I touching the backlight strip with a missing Zener diode.

    So I replaced the leds on the strips and they seemingly working fine, but soon as I touch the strip which has a missing Zener diode the whole backlight turns off for a few seconds and then turns back on.

    Is this caused by the missing diode? If so what kind of zener diode should I use to replace it?.
    ​​​​
    The led strips has 9 6V leds.


    ​​​
    1 Photo
    02-10-2025, 12:13 PM
  • B0r1s
    Samsung UE49KS7000SXXH - fast clicking sound in standby mode
    by B0r1s
    PSU - BN44-00878A

    Symptoms:

    The TV turned itself off, and I haven't been able to turn it back on. The standby voltage was unstable and lower than it should be.
    A weak clicking sound was coming from the transformer.

    Video with clicking sound:https://www.youtube.com/watch?v=lAduhjNtqCA

    Progress:

    After the transformer, I measured four Schottky diodes. DM862C and DM864C diodes readings were 003 in both directions. After detaching them from the circuit and measuring them, DM864C was the shorted one. These Schottky diodes are SB550.I...
    01-17-2023, 04:58 PM
  • Baste
    MBR3045CT and SR3045LCT Schottky diode testing help.
    by Baste
    Hello experts,
    Can anyone educate me on how to test MBR3045CT and SR3045LCT Schottky diodes? I'm totally a newbie in electronics, so forgive me if I have cheap tools. In my effort to repair a Gigabyte PSU, I stumbled upon the two diodes, which I suspect are leaky. I tested this with my two cheap multimeters and the newly bought LCR-T4 MC328, and I got confusing results. Below are my test results.

    Aneng ST182 Meter.

    Diode mode.
    MBR3045CT:
    Diode mode
    Pin 2-1 - 0.150v
    Pin 2-3 - 0.150v ...
    4 Photos
    10-21-2025, 06:14 AM
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