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Search: Posts Made By: victorcas
Forum: Troubleshooting Audio Equipment 12-11-2021, 06:01 PM
Replies: 12
Views: 914
Posted By victorcas
Re: Yamaha RX A3020

Does it behave the same if you connect more load to the output? (or increasing the volume) I say this in case the problem could be due to the power stage or the audio processing area.
If you connect...
Forum: Troubleshooting Printers, Copiers, Scanners and other Imaging & Printing Devices 12-11-2021, 05:42 PM
Replies: 2
Views: 566
Posted By victorcas
Re: SHARP MX3100N duplicating yellow and magenta colours

It seems that it may be caused by misaligned heads. Some printers usually have an automatic alignment system. I have never used color toner printers, so I can't tell you exactly how to fix it. ...
Forum: Troubleshooting Audio Equipment 12-04-2021, 04:36 PM
Replies: 12
Views: 914
Posted By victorcas
Re: Yamaha RX A3020

I have found some devices with a similar error that was due to dirt (mostly sticky liquids) that when heated, increased the conductivity in some areas.
This might not be your case, but I don't know...
Forum: Troubleshooting Power Supplies and Power Supply Design 12-04-2021, 04:14 PM
Replies: 3
Views: 502
Posted By victorcas
Re: Thermaltake TR2 Bronze 600w low 12v voltage

Have you thought it might have something to do with the temperature?
This won't solve the problem, but it may provide some clues. You could try heating it with a hair dryer to see if the voltage...
Forum: General Electronics Technical Discussion 11-20-2021, 07:08 AM
Replies: 15
Views: 884
Posted By victorcas
Re: Mosfets for P600W24V Smps

The manufacturer of IC is "Wu Xi China Resources Huajing".
It seems to be hard to find on the internet. Source:

http://www.ecadata.de/herst/myshowlogo.php?F_SPRACHE=2

Can you measure the size...
Forum: Troubleshooting Power Supplies and Power Supply Design 11-20-2021, 06:14 AM
Replies: 6
Views: 789
Posted By victorcas
Re: Xilence 1200W. Keeps restarting

After some tests the power supply stopped working definitely. I checked the board again and noticed that 3 resistors were broken (R62, R74, R25), so I replaced them with 4.7 Ohm resistors (I didn't...
Forum: Troubleshooting Power Supplies and Power Supply Design 11-14-2021, 06:09 AM
Replies: 6
Views: 789
Posted By victorcas
Re: Xilence 1200W. Keeps restarting

I have tested the PSU using a motherboard and it still does the same...



Yes, it looks like it has SMD power resistors. I don't know their value because the "001" code doesn't seem to follow...
Forum: Troubleshooting Power Supplies and Power Supply Design 11-07-2021, 08:37 AM
Replies: 7
Views: 1,113
Posted By victorcas
Re: Corsair TX-750 problem with finding component

No, I have no idea... It seems to be a 1/2W resistor with a 1% tolerance. It may be used for current measurement. The value is impossible to read. It looks something like "green - brown - ? - ? -...
Forum: Troubleshooting Power Supplies and Power Supply Design 11-06-2021, 06:24 AM
Replies: 7
Views: 1,113
Posted By victorcas
Re: Corsair TX-750 problem with finding component

I have a Corsair CS750M and it uses a TNY278pn. Im not sure if its the same. Maybe you can check the datasheet and see if it fits.

Usually, when those components explode, it means there is...
Forum: Troubleshooting Power Supplies and Power Supply Design 11-01-2021, 11:35 AM
Replies: 6
Views: 789
Posted By victorcas
Re: Xilence 1200W. Keeps restarting

Thanks for replying!

There are 3 capacitors around the circuit and all of them are 35V. The values are 10uF, 40uF, 220uF. I have checked them with a multimeter and they are all ok but I have...
Forum: Troubleshooting Power Supplies and Power Supply Design 10-30-2021, 03:34 AM
Replies: 6
Views: 789
Posted By victorcas
Xilence 1200W. Keeps restarting

I have repaired a few PC PSUs before, but the problem has always been a broken Mosfet and blown capacitors fails. Now I am facing a PSU problem that I haven't seen before.

I have a Xilence 1200...
Forum: Announcements & Related News 10-10-2021, 02:57 PM
Replies: 29,751
Views: 2,758,766
Posted By victorcas
Re: New Members - please post your introductions here

Hello,
My name is Victor. I'm an electronic engineer and my hobby is to repair any kind of electronic devices.

I have found this forum very useful and I would like to be part of this community
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