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Search: Posts Made By: momaka
Forum: Power Supply Design and Troubleshooting 01-10-2018, 03:09 PM
Replies: 1,416
Views: 256,988
Posted By momaka
Re: the gutless, bloated, and fried power supply hall of shame

Good call! Yes, that PWM controller definitely looks toast. Perhaps the 5VSB goes wonky with a load? Or the main supply did and sent overvoltage to the PWM.


Yes, or that.
For me, it's fixing...
Forum: Power Supply Design and Troubleshooting 01-10-2018, 07:04 AM
Replies: 1,416
Views: 256,988
Posted By momaka
Re: the gutless, bloated, and fried power supply hall of shame

Oh Deer! I guess the hunting season came late for you this year (but delivered well, nonetheless). :group:

Let me try to guess: these came out from some office or game cafe PCs, where they were...
Forum: Troubleshooting Computer Displays 01-09-2018, 01:47 PM
Replies: 6
Views: 139
Posted By momaka
Re: Asus PB279Q working but no image.

Exactly!
Thanks for clarifying. I though I replied to that, but not sure what happened to my post. Anyways... yes we need pictures of the T-con.
Forum: Troubleshooting Computer Displays 01-09-2018, 09:29 AM
Replies: 4
Views: 107
Posted By momaka
Re: Asus VH242 white vertical line

Probably a panel fault, as I mentioned. You can try moving the flat cables between the t-con board and the TFT screen right above the line to see if that makes it disappear or change colors. But...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 01-09-2018, 08:51 AM
Replies: 7
Views: 209
Posted By momaka
Re: infrared rework station

I never made one. Was going to, but then ended up using my gas stovetop and my hot air station. That alone allows me to do pretty much any BGA work I want.


Ah, I see. So you're looking for a...
Forum: Troubleshooting Computer Displays 01-09-2018, 08:47 AM
Replies: 8
Views: 100
Posted By momaka
Re: Hp lw1965

Hmmm. I have seen those marks before, but never paid much attention to them.

It is possible that the solder blob was done at the factory to correct for some issue or "fine tune" something. But...
Forum: General Electronics Technical Discussion 01-08-2018, 09:29 AM
Replies: 49
Views: 976
Posted By momaka
Re: Constant current load for testing power supplies (guidelines)

Don't scrap the idea yet. ;)

Yes, an incandescent or halogen light bulb will NOT work due to too much change in resistance. I've actually tried it before (used a low-resistance halogen bulb in...
Forum: General Computer Discussion 01-08-2018, 05:29 AM
Replies: 62
Views: 770
Posted By momaka
Re: The 2018 Operating System thread

I agree.

But again, that's irrelevant for badcaps.net. Like I said, there's still plenty of folks here who use desktop PCs. Hence, as one might expect, the results of the poll above do *not*...
Forum: General Computer Discussion 01-08-2018, 04:06 AM
Replies: 32
Views: 607
Posted By momaka
Re: Dell Dimension 1100? ...or is it? The Ultimate Sleeper System

Okay, I'll dig them out when I get back home from visiting relatives. They are Nanya-branded, IIRC (i.e. good OEM, not some no-name junk).


Yeah, DDR2 RAM is getting really cheap these days,...
Forum: Power Supply Design and Troubleshooting 01-08-2018, 03:23 AM
Replies: 18
Views: 261
Posted By momaka
Re: 24v to 12v project guidelines

In that case, you may definitely want to bring a multimeter and measure the voltage again. After all, you don't want any surprises with the voltage (let's say for some reason it was 230 V AC :D ).
...
Forum: General Electronics Technical Discussion 01-08-2018, 02:34 AM
Replies: 17
Views: 197
Posted By momaka
Re: Transformer in UPS runs warm for no apparent reason

Exactly.
Although, I do want to explicitly mention that not all toilet paper dispensers are cheap. :group: If you go to a "boutique"/home furniture store, you may find some really really expensive...
Forum: General Electronics Technical Discussion 01-08-2018, 02:09 AM
Replies: 49
Views: 976
Posted By momaka
Re: Constant current load for testing power supplies (guidelines)

Yes, resistor resistance can drift with heat, but it's never going to be that bad. Why? Because of tolerance. As long as you are using a resistor within its rated power level and rated operating...
Forum: General Computer Discussion 01-07-2018, 01:26 PM
Replies: 62
Views: 770
Posted By momaka
Re: The 2018 Operating System thread

On any other forum, that may well be the case.

But remember, this is badcaps.net - there's quite a few of us here who would happily ditch our phones in favor of a proper desktop. Seriously. (As a...
Forum: General Computer Discussion 01-06-2018, 01:17 PM
Replies: 62
Views: 770
Posted By momaka
Re: The 2018 Operating System thread

I have 7 hour advantage in the time zone I'm currently in. ;)


Sorry, I pretty much copied the poll from last year's thread. I figured it made sense to be consistent.


Thanks.

I guess we...
Forum: Other Devices with Bad Capacitors 01-06-2018, 12:53 PM
Replies: 19
Views: 308
Posted By momaka
Re: Netgear R6300v2

Well, if the problem is with solder joints (which is most likely to be with any hot-running BGA stuff like the CPU and/or RAM and large components), then you are indeed most likely to experience...
Forum: General Computer Discussion 01-06-2018, 11:42 AM
Replies: 1,865
Views: 291,749
Posted By momaka
Re: best cheap/free scores 1.1

A beige case with 120 mm rear fan?
Nice!!!
What an awesome sleeper case.
I imagine this is much better build than many of the modern $50 black "gamer" cases.
Forum: Troubleshooting Computer Displays 01-06-2018, 11:36 AM
Replies: 16
Views: 386
Posted By momaka
Re: HP22 2sec to black CCFL to LED conversion

Good to hear you got it working! :)
Forum: General Computer Discussion 01-06-2018, 11:33 AM
Replies: 32
Views: 607
Posted By momaka
Re: Dell Dimension 1100? ...or is it? The Ultimate Sleeper System

Well, good to hear everything is working again and there is nothing wrong with the board.

By the way, I have four of five 2 GB PC6400 DDR2 sticks of reg+ECC RAM that are sitting unused. They are...
Forum: Troubleshooting Computer Displays 01-06-2018, 11:26 AM
Replies: 50
Views: 909
Posted By momaka
Re: Viewsonic vx2235wm colors washed out after power board recapping

Hmmm. Maybe the CCFL tubes are getting a bit old at this point? Do you know how many hours the monitor has been running for so far (there may be an option in the service menu to tell you that). From...
Forum: General Computer Discussion 01-06-2018, 05:03 AM
Replies: 1,865
Views: 291,749
Posted By momaka
Re: best cheap/free scores 1.1

Doesn't matter. As long as it's a standard single or dual N-ch MOSFET, you can use one or two TO-252 MOSFETs in its place soldered with thick short wires to the correct pins.

Start a new thread...
Forum: Audio Equipment Discussion 01-06-2018, 03:27 AM
Replies: 43
Views: 1,212
Posted By momaka
Re: Pioneer Speaker Package subwoofer transformer.

^ Forget about Mouser and Digikey when it comes to parts like that - they would be way too expensive. You're better off looking for a junk transformer on eBay with the same voltages.

If nothing is...
Forum: General Computer Discussion 01-06-2018, 03:20 AM
Replies: 8
Views: 153
Posted By momaka
Re: Heads up: Major price hike GeForce GTX 1050 Ti

I really doubt Worst Buy has anything (PC-parts) that is better priced than online stores or MicroCenter. The only worthwhile things from them are appliances, and that's only if you know the right...
Forum: Power Supply Design and Troubleshooting 01-06-2018, 03:13 AM
Replies: 18
Views: 261
Posted By momaka
Re: 24v to 12v project guidelines

If it's used for lightning in the basement, you can pretty much assume it's capable of more than a few amps. After all, with incandescent bulbs, you need a lot of power to produce decent lightning,...
Forum: General Computer Discussion 01-05-2018, 06:13 PM
Replies: 8
Views: 153
Posted By momaka
Re: Heads up: Major price hike GeForce GTX 1050 Ti

What?! I thought this was common sense. Who buys computer hardware at "Best Buy" any more? :D
Forum: General Electronics Technical Discussion 01-05-2018, 05:38 PM
Replies: 17
Views: 197
Posted By momaka
Re: Transformer in UPS runs warm for no apparent reason

30C doesn't seem that hot, even with 16C ambient. Your transformer will always draw a few Watts for itself, even when not loaded.

I have a pair of computer speakers whose transformer runs so hot...
Showing results 1 to 25 of 500

 
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