Badcaps.net Forum
Go Back   Badcaps Forums > Search Forums
Register FAQ Calendar Search Today's Posts Mark Forums Read

Showing results 1 to 25 of 500
Search took 0.02 seconds.
Search: Posts Made By: Per Hansson
Forum: Troubleshooting Power Supplies and Power Supply Design Today, 08:11 AM
Replies: 1,686
Views: 404,573
Posted By Per Hansson
Re: the gutless, bloated, and fried power supply hall of shame

That's a new one: it is a board designed for a 80mm side fan where they instead mounted a 120mm top fan to make it look modern, lol!
The plastic baffle on the fan is common: it makes sure to direct...
Forum: General Electronics Technical Discussion Yesterday, 06:47 AM
Replies: 9
Views: 158
Posted By Per Hansson
Re: LED Resistor Calculations ...

If you are the author of that LED calculator I would change the code to not show the resistor value in scientific notation.
Because if I am unable to calculate the resistor value by hand then how is...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 04-15-2021, 10:43 AM
Replies: 7
Views: 195
Posted By Per Hansson
Re: Powercolor Evilking IV AGP graphics card - Voodoo 4 4500 - no picture

Reading the two links SMDFlea posted it seems the resistor mod might be for AGP 4x support.
But others say in the same thread it is not possible to mod it so easily so I am not sure of it...
I...
Forum: General Computer & Tech Discussion 04-09-2021, 08:29 AM
Replies: 13
Views: 469
Posted By Per Hansson
Re: That Apevia Case from the Free Scores thread...Another Time-wasting Retro Build!

nuh uh
First it must go in the gutless wonders thread (https://www.badcaps.net/forum/showthread.php?t=8490) ;)
Forum: Troubleshooting Game Consoles & Other Weird Devices 04-09-2021, 07:51 AM
Replies: 21
Views: 582
Posted By Per Hansson
Re: Fluke 289 multimeter not working

You can compare to some of the posts in this thread now that eevblog forum is back after the server outage, there is also included the pinout of connector J5:...
Forum: Troubleshooting Power Supplies and Power Supply Design 04-07-2021, 10:57 AM
Replies: 57
Views: 1,707
Posted By Per Hansson
Re: 1300W PSU - Help with replacement mosfet

Look at IC102 and IC506 about in the middle of this picture here:
https://www.badcaps.net/forum/attachment.php?attachmentid=233463&d=1616974045
Forum: Troubleshooting Game Consoles & Other Weird Devices 04-07-2021, 10:54 AM
Replies: 21
Views: 582
Posted By Per Hansson
Re: Fluke 289 multimeter not working

Yea or just PuTTY, I think it is just 8N1 115200 like most default things are...
Forum: Troubleshooting Game Consoles & Other Weird Devices 04-06-2021, 01:27 PM
Replies: 21
Views: 582
Posted By Per Hansson
Re: Fluke 289 multimeter not working

68mA is way too high, is anything getting hot?
The debug TX goes via a dedicated circuit, not the optical interface.
It is the unpopulated connector J5 on the PCB.
I am not sure about the pinout,...
Forum: Troubleshooting Game Consoles & Other Weird Devices 04-05-2021, 12:46 PM
Replies: 21
Views: 582
Posted By Per Hansson
Re: Fluke 289 multimeter not working

You can desolder the supercap, it is not needed for operation.
It is only to have correct date/time when using the logging feature.
You can measure how much power the meter draws before/after doing...
Forum: Troubleshooting Game Consoles & Other Weird Devices 04-05-2021, 08:20 AM
Replies: 21
Views: 582
Posted By Per Hansson
Re: Fluke 289 multimeter not working

Looks like the LCD is broken, try to test it in diode mode to light up and LED.
And continuity mode with beeper on to see if you get an idea if it works.
If it does I think a replacement LCD would...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 04-05-2021, 07:02 AM
Replies: 21
Views: 484
Posted By Per Hansson
Re: Asrock 775Dual-VSTA needs capacitors

I would use the NXH caps, then if you want you can populate the empty spots with polymers too.
Just be sure to measure first to make sure they really are for VCC.
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 04-05-2021, 05:33 AM
Replies: 21
Views: 484
Posted By Per Hansson
Re: Asrock 775Dual-VSTA needs capacitors

Right you are, I read them as 1000F for some reason.
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 04-05-2021, 02:53 AM
Replies: 21
Views: 484
Posted By Per Hansson
Re: Asrock 775Dual-VSTA needs capacitors

The NXH (https://www.samyoung.co.kr/download/new/NXH.pdf) caps have about twice the ESR of the original KZG...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 04-04-2021, 09:02 AM
Replies: 21
Views: 484
Posted By Per Hansson
Re: Asrock 775Dual-VSTA needs capacitors

Based on their position I would say the are the output caps for the CPU vcore, not input caps for VRM, that should be the Panasonic's.
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 04-04-2021, 08:50 AM
Replies: 21
Views: 484
Posted By Per Hansson
Re: Asrock 775Dual-VSTA needs capacitors

Yes of course you need to replace the KZG capacitor with something of comparable ESR.
Otherwise the switching regulators will probably short out if you give it a serious load and not just enter the...
Forum: General Electronics Technical Discussion 04-01-2021, 12:43 PM
Replies: 118
Views: 1,669
Posted By Per Hansson
Re: Meters and Microamps

Well you can have a whole bunch of eevblog fuses for much less:
https://www.eevblog.com/product/multimeter-fuse-pack/

And a nice video or two to show how strange they work on overload scenarios...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 04-01-2021, 12:09 PM
Replies: 15
Views: 331
Posted By Per Hansson
Re: Advantech Motherboard DAC-BC05 - Power but doesn't start

Nice team work! :)
Just a side note: it can also be that the monitor does not support the frequency or resolution being output on the VGA port.
Forum: Troubleshooting Power Supplies and Power Supply Design 04-01-2021, 11:28 AM
Replies: 57
Views: 1,707
Posted By Per Hansson
Re: 1300W PSU - Help with replacement mosfet

stj, that could be just a picture artifact or conformal coating.
Forum: General Electronics Technical Discussion 03-27-2021, 03:37 PM
Replies: 14
Views: 387
Posted By Per Hansson
Re: Honba Automatic Voltage regulator - what use is this for?

You win the potato picture award of the century with the picture in your OP dicky96!!! :D
As stj says the ad on eBay linked by SMDFlea says it has a servo control so must be a variac, really useful...
Forum: General Capacitor Questions & Issues 03-27-2021, 10:50 AM
Replies: 15
Views: 3,038
Posted By Per Hansson
Re: can you help me where I can buy this cap?

Moderation note: merged and deleted several posts by Kanny across the board.
Kanny: if you cross-post again like that your account will be banned!
Forum: Troubleshooting Power Supplies and Power Supply Design 03-20-2021, 09:56 AM
Replies: 23
Views: 4,736
Posted By Per Hansson
Re: ADT MPT-301 an early CWT ISO unit?

Do a search on the previous page of your post ;)
Forum: Troubleshooting Power Supplies and Power Supply Design 03-13-2021, 05:03 AM
Replies: 25
Views: 5,032
Posted By Per Hansson
Re: Standard Vizio Power Supply DPS-167DP

Yes because GFCI does not measure the ground wire at all.
It measures the relationship between phase and neutral and if they are different (according to the spec on the unit, i.e. 20mA) then it...
Forum: Troubleshooting Power Supplies and Power Supply Design 03-13-2021, 03:30 AM
Replies: 23
Views: 4,736
Posted By Per Hansson
Re: ADT MPT-301 - more testing

I'm going to call it Censius! :D
Forum: General Electronics Technical Discussion 03-13-2021, 02:23 AM
Replies: 58
Views: 1,435
Posted By Per Hansson
Re: Oscilliscopes

Well you need a ground (or to use two probes instead of the ground).
What I was saying is that the long ground wire acts like a loop antenna:
It is better to use the short spring clip that you can...
Forum: General Computer & Tech Discussion 02-27-2021, 02:47 AM
Replies: 62
Views: 3,229
Posted By Per Hansson
Re: Building a gaming rig for my dad...

Sounds like a fun project, maybe you could get it all going with just a new mainboard and not be out by much?
If your dad prefers older operating systems remember that Win7 only works natively with...
Showing results 1 to 25 of 500

 
Forum Jump


Badcaps.net Technical Forums 2003 - 2021
Powered by vBulletin ®
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 10:01 PM.
Did you find this forum helpful?