olevia lcd tv has no sound until the tv warms up

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  • ChaosLegionnaire
    what i went through dealing with my mobo with dead onboard sound!
    by ChaosLegionnaire
    so i took out one of my spare gigabyte ep35-ds3r mobos from storage for use to do some cpu, ram and video card testing of stuff i bought from ebay and got for free from momaka. he bought 50 e8400 cpus for cheap from ebay some years ago and i decided to help him relieve him of some of his supply since he had waaaay too many!! what did we say about hoarding too much stuff and depriving others of them?! *cough* socialism *cough* lol!

    i had to blow some dust off the board and heatsinks with the datavac as i didnt clean it up before putting it in storage. after finishing...
    09-13-2022, 09:02 AM
  • LEECH666
    Grundig Vision 9 37 9880 T USB (Chassis SR) TV Repair Help - Distorted Subwoofer Sound and overall weird sound waveforms
    by LEECH666
    Good day ladies and gentleman!

    I am currently trying to repair a Grundig Vision 9 37 9880 T USB LCD TV for a friend that has a weird audio problem. Basically everything works fine except for the heavily distorted sound when the Subwoofer module is connected and there is a buzzing sound coming from the PSU PCB.

    This seems to be a rather rare TV so there is not much prior on topic help to be found however a service manual is available at the usual sources (Electro Tanya i.e.).

    I think the PSU buzzing comes from one of the coils near the bridge rectifier but...
    01-19-2024, 05:46 PM
  • acedogblast
    Marantz SR5012 popping and other sound issues
    by acedogblast
    Hello I have a Marantz SR5012 7.1 AV receiver that is producing speaker pop and other sound issues. These sounds are coming out of all connected speakers regardless if they are configured to be used. The rca preouts are clean from these defects so I am assuming the problem has to be with the amplifier.
    These sound issues are random and unpredictable. There are times where the unit can go 10 minutes without any problems then suddenly the problems come back. It doesn't seem to matter if there is sound being played or not.

    I have disassembled the unit and was able to take out the...
    02-15-2023, 01:40 PM
  • hopeng
    Dell AIO 7440 having "popping" sound after motherboard change
    by hopeng
    Hi, does anyone know what could be the reason for 'popping' sound during windows start (while window icon showing)? I just replaced a broken motherboard and the sound start happening.

    Windows starts ok. No noise afterword. But the start up popping sound is scary to me. Not sure if it's safe to use my PC. I've attached the video of the internal of the PC during start up and the sound. thanks....
    11-12-2020, 05:57 AM
  • Christos Tsiligiannis
    Marian Trace Alpha sound card repair help
    by Christos Tsiligiannis
    Hello to the forum.

    My name is Christos, I am new to the forum here and i am posting from Greece.

    So i have this old German sound card from Marian, called Trace Alpha. To be exact i have 2 of them and i use them professionally for my small FM radio station here. The first one works like a charm, but the second one does not work at all.

    To be more specific in the same exact pc with windows 7 (i even tried 32bit) the one works while the other doesn't.

    So i tried asking for a schematic from the company and they would not give me one. Instead they...
    11-18-2024, 05:26 AM
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