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Search: Posts Made By: momaka
Forum: General Capacitor Questions & Issues Yesterday, 11:15 PM
Replies: 1
Views: 60
Posted By momaka
Re: Bad caps or dirt?

Looks like corrosion from moisture / wet dust / moisty basement to me. Those are Panasonic (Matsushita) capacitors, and quite good quality. Looks like FC series (or perhaps HFQ?) Either way, no need...
Forum: Troubleshooting Power Supplies and Power Supply Design Yesterday, 10:35 PM
Replies: 5
Views: 175
Posted By momaka
Question Re: Corsair CX750M [Model 75-002019] - burned output toroid inductor

Thanks for the help so far, everyone! :smile:

So I guess we can safely say the original core is indeed a T130-45 toroid.
That moves us to step 2: finding a replacement, and preferably something...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals Yesterday, 04:21 PM
Replies: 10
Views: 338
Posted By momaka
Re: ATI Radeon HD4800 - Running Meltdown HOT!!

No problems, will do. I think I even have one of these HD4870's that I might not have modded yet (was a reflown card and I didn't invest too much time into it.) Just have to dig it out... and maybe...
Forum: Troubleshooting Power Supplies and Power Supply Design Yesterday, 08:45 AM
Replies: 22
Views: 3,474
Posted By momaka
Re: Enermax PRO 82+ 525W repair

^ Yup, SCK 054 is correct.
Yours blown too? If yes, check the big 400V caps on the primary. Could be open-circuit or low capacitance or high ESR.

BTW, looks like I still haven't updated this...
Forum: General Computer & Tech Discussion 09-21-2021, 06:53 PM
Replies: 5,087
Views: 886,251
Posted By momaka
Re: best cheap/free scores 1.1

LOLz!
Looks very similar, in terms of specs, to my HP Pavilion 8756c (https://www.badcaps.net/forum/showpost.php?p=534989&postcount=541) PC that I found many ages ago... except, mine didn't look...
Forum: General Computer & Tech Discussion 09-20-2021, 06:51 PM
Replies: 5,087
Views: 886,251
Posted By momaka
Re: best cheap/free scores 1.1

Hey, so did mine yesterday!
But it wasn't about anything interesting. :p:


That's actually a pretty kickass system too! https://www.badcaps.net/forum/images/icons/icon14.gif
After all, it is...
Forum: Troubleshooting Computer Displays 09-20-2021, 06:10 PM
Replies: 13
Views: 1,584
Posted By momaka
Re: LG 22EA53VQ-P "crash" after 5 min.

Could you please upload your pictures on badcaps.net forums?

For some reason, I get a blank screen when I follow the imgur links, so I can't see any of the images.
Forum: Troubleshooting Game Consoles & Other Weird Devices 09-20-2021, 06:04 PM
Replies: 54
Views: 12,413
Posted By momaka
Re: xbox 360 blowing mosfet

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

With the adapter plugged into the Xbox, you should be getting ONLY the voltage shown in PURPLE....
Forum: Troubleshooting Power Supplies and Power Supply Design 09-19-2021, 08:44 PM
Replies: 5
Views: 175
Posted By momaka
Question Corsair CX750M [Model 75-002019] - burned output toroid inductor

Looks like I may need a little help from the PSU experts (or anyone really! :feedback: ) I have a Corsair CX750M (Model 75-002019) that I picked up for free about 4 years ago. This is the PSU:...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 09-18-2021, 09:14 AM
Replies: 10
Views: 338
Posted By momaka
Re: ATI Radeon HD4800 - Running Meltdown HOT!!

Hmmm... were they supposed to be both working? And even if not, I still dislike it when seller just slaps the cards together (when buying multiple cards) and then wraps that up as one piece. I know...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 09-16-2021, 07:48 PM
Replies: 5
Views: 195
Posted By momaka
Re: Help with capacitor for Asus Radeon 6870

That little logo denotes the capacitor is made by Apaq (http://www.apaq.com.tw/en/)... which is pretty much what ASUS uses all the time.
"5KR43" string indicates the series and date code, with "5K"...
Forum: General Capacitor Questions & Issues 09-16-2021, 05:43 PM
Replies: 6
Views: 333
Posted By momaka
Re: Help identifying an old capacitor

Nice! Good to hear you got to the bottom of it. :smile:
I'm just surprised to see a Y1-type capacitor fail. Usually those are supposed to be very robust and made for industrial environments. But...
Forum: Troubleshooting Audio Equipment 09-16-2021, 05:40 PM
Replies: 3
Views: 189
Posted By momaka
Re: need some help repairing a Jamo SW 3015 active sub

Are you sure about those rails?
On the original diagram you drew, you indicated two 12V rails going to the signal board - one positive and one negative. Make sure both of those rails are present,...
Forum: General Capacitor Questions & Issues 09-16-2021, 12:27 PM
Replies: 992
Views: 483,739
Posted By momaka
Exclamation The Hall of Shame - Nichicon HZ series with H05xx date codes

While still on the discussion of ultra-low ESR series of caps, here is one more to beware of: Nichicon HZ series with date codes that start with “H05” – i.e. HZ made in 2005. In particular, the only...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 09-16-2021, 08:09 AM
Replies: 10
Views: 338
Posted By momaka
Re: ATI Radeon HD4800 - Running Meltdown HOT!!

Yeah, 80C is not quite right for idle temps for these cards.
However, you can certainly expect to see those kind of temps (and even a little higher, like mid 80's Celsius) with the stock fan profile...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 09-15-2021, 10:07 PM
Replies: 10
Views: 338
Posted By momaka
Re: ATI Radeon HD4800 - Running Meltdown HOT!!

Yup, that's a proper Radeon HD4870 (or 4890) for ya - always running hot enough to burn you. FWIW, the HD4850 (based on th same GPU chip, but ran at lower V_core voltage and frequency) also got...
Forum: Troubleshooting Power Supplies and Power Supply Design 09-15-2021, 07:21 AM
Replies: 11
Views: 598
Posted By momaka
Re: Casing Power MPT-301 [PCB ATX9806b-p REV: A3] - load testing

Hmmm, just stumbled upon this after trying to catch a few details of my recap...

So, the Q-TEK ADT-350 in the last link above - that's not actually a PSU made by Macron. It's a CWT ISO series, and...
Forum: General Capacitor Questions & Issues 09-14-2021, 11:20 AM
Replies: 992
Views: 483,739
Posted By momaka
Exclamation The Hall of Shame - Badcaps Photo Montage - Rubycon MFZ series

Well… looks like I might have to rethink/re-check (and possibly re-do) some of my personal equipment recaps that [re]used 6.3V 2700 uF Rubycon MFZ series from Xbox 360 motherboards. Here’s why:
...
Forum: Troubleshooting Power Supplies and Power Supply Design 09-14-2021, 09:54 AM
Replies: 15
Views: 421
Posted By momaka
Re: HP Z200 PSU Delta DPS-320KB-1 DEAD

Shouldn't matter too much.
I generally prefer to leave my PCs plugged in (but turned off, as in soft-off mode) to keep the mobo CMOS battery from going weak. It also keeps the 5VSB and mains caps...
Forum: Troubleshooting Power Supplies and Power Supply Design 09-14-2021, 09:35 AM
Replies: 11
Views: 337
Posted By momaka
Re: PSU OCZ700MXSP no +5VSB

^ Excellent find!
So looks like these OCZ PSUs fail quite often, judging by that thread. No surprise though - cheapo Teapo caps simply can't last too long on the primary of an APFC circuit. Heck,...
Forum: Troubleshooting Power Supplies and Power Supply Design 09-14-2021, 08:09 AM
Replies: 11
Views: 337
Posted By momaka
Re: PSU OCZ700MXSP no +5VSB

Awesome! https://www.badcaps.net/forum/images/icons/icon14.gif
So basically just download the TNY278 datasheet and use it as a reference. It will have an application circuit inside that may look...
Forum: Troubleshooting Computer Displays 09-13-2021, 10:13 AM
Replies: 13
Views: 1,584
Posted By momaka
Re: LG 22EA53VQ-P "crash" after 5 min.

No problems!
Hope they were all positive. :smile:


Yeah, that inductor is likely part of the first boosted voltage rail for the T-con, typically referred to as VDD or AVDD. Might be a shorted...
Forum: General Computer & Tech Discussion 09-13-2021, 09:54 AM
Replies: 107
Views: 14,947
Posted By momaka
Re: The (now the death of) Dolby DP600 Build (OK, this one is BEYOND COOL)

My internet connection had no sweat delivering this... but the Pentium 4 CPU in my PC was like, hold on, I need to think this through for a few moments while loading the page. :lol:


Smart!
I...
Forum: Troubleshooting Game Consoles & Other Weird Devices 09-13-2021, 08:56 AM
Replies: 54
Views: 12,413
Posted By momaka
Re: xbox 360 blowing mosfet

The component circled in red is not a MOSFET, but rather a 3.3V regulator (LM1117-33 or equivalent, if I remember correctly.) It takes 5V standby power from the power adapter and converts it to 3.3V...
Forum: Troubleshooting Audio Equipment 09-13-2021, 08:48 AM
Replies: 11
Views: 1,719
Posted By momaka
Re: JBL S412PII Speakers – Distorted Bass Repair and Updated Schematics

Hi JuelDK,
Glad to hear my thread was of some help to you.
Yeah, I can see these amps having all kinds of problems, given the not so great soldering, combined with heat and cheap 85C caps. I don't...
Showing results 1 to 25 of 500

 
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