I need to test Desktop pc Motherboard signals and please suggest Voltage devider circuit how to calculate right values ?
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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... -
I have an EVGA Nu Audio sound card that is not working properly and I need some help diagnosing the fault (preferably by someone who owns this card and is willing to take some measurements).
The card sort of powers up (LED lights are coming on and the relais is clicking, some voltages are present) but it is not detected in Windows. I tried installing in two different PCs and tried several driver versions but the card was never detected anyway. So I thought this is probably not a driver / software-issue and then disassembled the card to take some measurements.
I found...03-07-2025, 11:44 AM -
Hi guys.I own Z690 F Strix board in one of my PCs....everything was working fine with integrated graphics card.I turned off power from it, installed graphics card from another PC, connected all the peripheral cables, optical sound cable of course when everything was switched off.Then I powered on the machine and integrated soundcard is dead.How did this manage to happen and if there is a way to diagnose and replace damaged component?
The new pci-e soundcard costs here 80 euros which is half of money I spent on motherboard.
I still can not believe that I am such a looser and don't know... -
Hello
After months of trying I gave up my laptops sound card. I plan to solder a sound card on pcb inside my laptops case, probably connecting to usb ports inside. Do anyone has an experience to recommend pcb type audio/sound card suitable installing inside a laptop? Probably should have some type of amplifier for connecting to internal speakers ( speakers ).
Thank you -
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...