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Search: Posts Made By: momaka
Forum: General Computer & Tech Discussion Today, 12:42 PM
Replies: 9
Views: 133
Posted By momaka
Re: <play taps>RadeonHD 5770 dead at ... ~10?

Yeah, in 3D stuff, 64-bit is... ugh.


^ But that's a GT 710 - it's a "display adapter" and not a real video card. :lol:

But yeah, I see your point, it's about the number of monitors you can...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals Today, 12:18 AM
Replies: 3
Views: 117
Posted By momaka
Re: Asus Dual-RX580-O8G

Those vertical-colored bars are highly likely a bad GPU chip (bad connections on GPU die going to one or more memory chips.) I don't suggest wasting too much time with it. Feel free to bake it a...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals Today, 12:03 AM
Replies: 1
Views: 75
Posted By momaka
Re: Attempt to repair AMD FirePro

100% YES.

Don't take this offensively, but this is like driving your car and letting your engine overheat. Then it broke and you ask, could it be because it overheated? What do you think? ;)

In...
Forum: General Computer & Tech Discussion Yesterday, 11:25 PM
Replies: 9
Views: 133
Posted By momaka
Re: <play taps>RadeonHD 5770 dead at ... ~10?

Yup, that's not bad at all, considering these aren't know to be very reliable.

I wonder, though, did you use it for any gaming or 3D work?
IME, these cards last as long only when not...
Forum: Troubleshooting Audio Equipment Yesterday, 10:55 PM
Replies: 15
Views: 1,937
Posted By momaka
Re: JBL S412PII Speakers Distorted Bass Repair and Updated Schematics

^ Agreed.

Given the wide range of issues seen from those posts, I too would say there has to be a bad solder joint somewhere. In fact, even when I serviced the two S412PII amps, I think I might...
Forum: General Computer & Tech Discussion Yesterday, 08:50 PM
Replies: 44
Views: 4,766
Posted By momaka
Re: Topcat's Other Misc Weird Build Thread

Oh yeah, I saw that in the cheap scores thread when I scrolled through it briefly last time.

Neat way to get rid of cases that aren't worthwhile.
Though I saw the front panel and/or USB/front...
Forum: General Electronics Technical Discussion Yesterday, 07:58 PM
Replies: 47
Views: 1,262
Posted By momaka
Re: Has anyone had issues with Rayovac Alkaline batteries leaking

And I called it out right!

Just as I was taking a shit today, one of the smoke detectors stated going off beeping once a minute to indicate it's got a low battery. Fortunately, I was just about...
Forum: General Computer & Tech Discussion Yesterday, 06:54 PM
Replies: 74
Views: 11,352
Posted By momaka
Re: HMMM....What could this be.... ;) TC's first X8DAi Build!

Glad to see it get used somewhere. :)
If it was here with me, it would still be sitting around collecting dust, and that would be a shame. I was hoping my T7500 could take it when I found it. Sadly...
Forum: Troubleshooting Game Consoles & Other Weird Devices Yesterday, 06:42 PM
Replies: 5
Views: 412
Posted By momaka
Re: I replaced one Xbox 360 16v 1500uF Cap with 25v 2200uF what issues will it cause?

Could be bad PSU. Could be too much heat from the console. Could be failing if someone did a reflow/reball on the console before this... or the towel "trick" :rolleyes: ... which I guess falls into...
Forum: Troubleshooting Game Consoles & Other Weird Devices Yesterday, 12:43 PM
Replies: 89
Views: 11,862
Posted By momaka
Re: Post your worthless and/or pointless repairs

Good point!
Heck, making your own enclosures might give better results than the original plastic ones. Actually, weren't you the one that did that before? I remember a picture on BCN from quite a...
Forum: General Computer & Tech Discussion Yesterday, 11:05 AM
Replies: 44
Views: 4,766
Posted By momaka
Re: Topcat's Other Misc Weird Build Thread

Ah.... HP "Engineering" again. *sigh* :rolleyes:

I never understood why they did that. Such a waste of metal and space. Granted those cases are made of really really thin steel... but still a...
Forum: Troubleshooting Power Supplies and Power Supply Design Yesterday, 10:26 AM
Replies: 8
Views: 265
Posted By momaka
Re: ADJ disco light PFC60-12 Power supply repair

TO-220 MOSFETs almost always have the Gate as pin 1 (leftmost pin when device front is facing the viewer.)

I don't see anything too special about the 8N60, so probably can replace it with just...
Forum: Troubleshooting Computer Displays 10-13-2021, 09:22 PM
Replies: 6
Views: 310
Posted By momaka
Re: Dead but clicking Hanns-G HC194D?

OK, try this: disconnect PSU board from the logic/video board, then plug in the PSU board into the wall and check those output voltages again. Are the 12V and 5V rails stable and close to their...
Forum: Troubleshooting Game Consoles & Other Weird Devices 10-12-2021, 09:52 PM
Replies: 89
Views: 11,862
Posted By momaka
Re: Post your worthless and/or pointless repairs

^ Nice! :D

So wait, you bought those drivers specifically to fix these speakers? :o: At almost $10 a piece, I can get a 2.1 system in good working condition around here. But I guess that was the...
Forum: Troubleshooting Game Consoles & Other Weird Devices 10-12-2021, 09:22 PM
Replies: 17
Views: 504
Posted By momaka
Re: PC Engine GT - No Video or Backlight

OK, I looked at the board a little more carefully, but still nothing obviously wrong stands out here.

So perhaps the most logical approach here would be to start with the inverter and see why the...
Forum: General Computer & Tech Discussion 10-12-2021, 10:28 AM
Replies: 9
Views: 183
Posted By momaka
Re: I finally got one too! a new monitor! and my first ips panel to boot!

Hey, welcome back Chaos!
I'm guessing this is why you were gone so long (broken monitor)?

Congrats on the new one!

Yeah, the prices and availability seems to have affected almost everything...
Forum: Troubleshooting Game Consoles & Other Weird Devices 10-09-2021, 11:50 PM
Replies: 17
Views: 504
Posted By momaka
Re: PC Engine GT - No Video or Backlight

I'll write a more proper reply later/tomorrow or Monday, since it's early AM hours here... but just FYI, that red connector is probably for supplying power to the CCFL backlights of the LCD. IDK what...
Forum: Troubleshooting Audio Equipment 10-08-2021, 10:35 PM
Replies: 7
Views: 297
Posted By momaka
Re: Logitech Z5500 power, but no sound

Alright, I finally took a look at the circuit. Man, what a cringe that was to look at. I mean, whoever drew this diagram... props for the effort and all, considering it was drawn from looking at the...
Forum: Troubleshooting Power Supplies and Power Supply Design 10-08-2021, 06:13 PM
Replies: 8
Views: 265
Posted By momaka
Re: Power supply repair

That's the tricky part sometimes - this was actually a 4-band resistor (brown, green, silver, gold - i.e. 0.15 Ohm 5%.) The "5th" band in this specific case isn't part of the resistance code. It's...
Forum: Troubleshooting Computer Displays 10-06-2021, 11:10 PM
Replies: 6
Views: 310
Posted By momaka
Re: Dead but clicking Hanns-G HC194D?

I concur with Per here - just replace all of the electrolytic caps that you didn't replace the first time around (including the very small ones on the primary side - i.e. one being the startup cap.)...
Forum: Troubleshooting Power Supplies and Power Supply Design 10-06-2021, 08:32 PM
Replies: 3
Views: 176
Posted By momaka
Re: LiteON PA-2911-1-LF Blown Components

Actually, forget what I said above about the TOPSwitch. I think TinySwitch-III family might be what was used here, judging by the connection of the small SMD ceramic cap between pin 2 and...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 10-06-2021, 08:20 PM
Replies: 4
Views: 260
Posted By momaka
Re: DIY | TESTER for LED TV BACK LIGHT

YES, this tester will work... but it's NOT safe!

Let's do some simple math here. The video suggests to use 10k resistor in series with one of the AC legs on the bridge rectifier. With 220-240V AC,...
Forum: Troubleshooting Power Supplies and Power Supply Design 10-06-2021, 07:32 PM
Replies: 3
Views: 176
Posted By momaka
Re: LiteON PA-2911-1-LF Blown Components

Hard to say exactly why that offline switch blew... but it's not uncommon.

I see the PSU has really good input line filter, so I doubt a high voltage spike from lightning or similar could have...
Forum: Troubleshooting Game Consoles & Other Weird Devices 10-06-2021, 06:45 PM
Replies: 17
Views: 504
Posted By momaka
Re: PC Engine GT - No Video or Backlight

Depends on the LCD screen. Some will let a little light through that can then reflect back and allow you to see a very faint image. But some can't.


Or perhaps help us help you by showing us...
Forum: Troubleshooting Game Consoles & Other Weird Devices 10-06-2021, 06:26 PM
Replies: 2
Views: 166
Posted By momaka
Re: Drilling out solder from capacitor holes

Observe this diagram first:
https://www.badcaps.net/forum/attachment.php?attachmentid=161104&d=1502010236

Now, it doesn't matter if you have the same exact Xbox 360 motherboard version as the one...
Showing results 1 to 25 of 500

 
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