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 0.04 seconds.
Search: Posts Made By: kaboom
Forum: General Computer Discussion 01-20-2019, 11:21 PM
Replies: 26
Views: 566
Posted By kaboom
Re: Ratdude's computer workbench... and epic fail build

RD, got something with a C frame shaded pole motor?

Small fans, electric pencil sharpeners (of all things), can openers, etc.

These motors give off a large stray field and can be used to...
Forum: General Electronics Technical Discussion 01-08-2019, 06:50 PM
Replies: 6
Views: 172
Posted By kaboom
Forum: Troubleshooting Audio Equipment 01-06-2019, 10:48 PM
Replies: 11
Views: 252
Posted By kaboom
Re: JBL SCS140 subwoofer no sound

Never a good thing...






I will add that checking ESR should never be done immediately after desoldering said caps. The electrolyte is much more active when warm, so you can get a...
Forum: General Computer Discussion 01-06-2019, 10:35 PM
Replies: 70
Views: 1,177
Posted By kaboom
Re: The 2019 Operating System Thread

Just as true today as it was in the AOHell days...
:usa:
Forum: Troubleshooting Power Supplies and Power Supply Design 01-04-2019, 10:50 AM
Replies: 7
Views: 227
Posted By kaboom
Re: FSP EP1000, too low output voltage.

Or a drifted-high resistor on the topside of a voltage divider. :smile:
Forum: General Computer Discussion 01-04-2019, 10:47 AM
Replies: 8
Views: 1,578
Posted By kaboom
Re: Bad bios flash need help

Well... maybe keep it off a while, or as long as needed to fail POST.

Then, try it expecting nothing. With proper support underneath, push on the CPU HSF and immediately hit reset. Does it POST...
Forum: General Computer Discussion 01-04-2019, 10:36 AM
Replies: 70
Views: 1,177
Posted By kaboom
Re: The 2019 Operating System Thread

You can very easily make it "shut up"- kill the partition(s), then zero fill the drive to be certain... :twisted:



fify...
:group:
Forum: Troubleshooting Audio Equipment 01-04-2019, 02:27 AM
Replies: 3
Views: 92
Posted By kaboom
Re: CD/DVD/BR laser focus "motor" ... FRU = ??

:group:

"To the moon, Alice!"
A DMM will work to ring them out, but probably won't move them.




Is this one with a built-in display, and that folds up?
If it is, they're pretty pointless,...
Forum: General Computer Discussion 01-04-2019, 02:20 AM
Replies: 8
Views: 1,578
Posted By kaboom
Re: Bad bios flash need help

You sure it's the board?
Maybe it's the power supply caps- surely those also warm up with the heater.


Examine & maybe post pix of the PSU caps- it's an SFF after all.
Them being bad now could...
Forum: Troubleshooting Audio Equipment 01-01-2019, 07:01 PM
Replies: 3
Views: 92
Posted By kaboom
Re: CD/DVD/BR laser focus "motor" ... FRU = ??

Resolder the servo IC and clean/reseat both ends of the FFC to the pickup.

Yes, the entire pickup is replaced as a unit.
If you look carefully, sometimes there's a small cover on the top of the...
Forum: General Computer Discussion 01-01-2019, 06:53 PM
Replies: 70
Views: 1,177
Posted By kaboom
Re: The 2019 Operating System Thread

The sky is falling, the sky is falling! :lol:

And win10 is just "perrr-fect," amirite? :D
It's particularly trendy to slam 7, and esp XP, (M$ paid trolling of forums)- while deliberately...
Forum: General Computer Discussion 01-01-2019, 05:30 PM
Replies: 70
Views: 1,177
Posted By kaboom
Re: The 2019 Operating System Thread

I'm milking XP for as long as possible.
Then, maybe 7, but with an actual shell/file manager.



"G" is worse than "M" at this point.
Those rustbooks and dumb devices have been made up to...
Forum: Troubleshooting TVs and Video Sources 12-31-2018, 08:24 PM
Replies: 12
Views: 205
Posted By kaboom
Re: Elcap Capacitors

They look good!

:cool:
Forum: Troubleshooting TVs and Video Sources 12-31-2018, 01:07 AM
Replies: 12
Views: 205
Posted By kaboom
Re: Elcap Capacitors

Link so we can see them?
Forum: Troubleshooting Power Supplies and Power Supply Design 12-25-2018, 05:25 PM
Replies: 18
Views: 318
Posted By kaboom
Re: SMPS blowing fuses, not semiconductors

I see what may be a green varistor, right next to the fuse.

Not to be confused with the thermistor, black (TH1) two components to the right of the fuse.


Now a bad varistor would still blow...
Forum: Troubleshooting Power Supplies and Power Supply Design 12-25-2018, 05:17 PM
Replies: 18
Views: 318
Posted By kaboom
Re: SMPS blowing fuses, not semiconductors

The original one? Or was there a second one, that tested OK, after parts replacement but when still blowing fuses?
Forum: Troubleshooting Power Supplies and Power Supply Design 12-25-2018, 03:18 PM
Replies: 18
Views: 318
Posted By kaboom
Re: SMPS blowing fuses, not semiconductors

Always replace the driver and gate resistor when the MOSFET shorts.
Forum: Troubleshooting Power Supplies and Power Supply Design 12-21-2018, 12:39 AM
Replies: 18
Views: 431
Posted By kaboom
Re: MJE13005 vs STP13007 in SMPS

At least replace the output caps, preferably the bias and main filter cap on the line side also.
At least pull them and check for electrolyte leakage or corroded-off leads.

The first cap on +5 is...
Forum: Troubleshooting Audio Equipment 12-20-2018, 10:27 PM
Replies: 21
Views: 474
Posted By kaboom
Re: Monitor Audio BXW10

Your resistance readings indicate the right transistor is shorted.

Can you take macro pix of those small SMT gate drive groups?
When the MOSFETs short, they backfeed raw DC into the gate drive...
Forum: Troubleshooting Power Supplies and Power Supply Design 12-20-2018, 03:40 AM
Replies: 3
Views: 158
Posted By kaboom
Re: Help for repairing Delta PSU (DPS-200PB-189A)

Either a shunt or source resistor.

0.1 ohm, 5% tolerance, fusible.

Need clear pix of solder side of PCB.

Also check components on that heatsink for shorts.
Forum: Troubleshooting Audio Equipment 12-20-2018, 12:25 AM
Replies: 21
Views: 474
Posted By kaboom
Re: Monitor Audio BXW10

I've attached an edited image with the gate drive components marked.

At least two components in each group have been damaged. These are small SMT diodes and transistors. They're arranged in such a...
Forum: General Computer Discussion 12-19-2018, 05:37 PM
Replies: 34
Views: 597
Posted By kaboom
Re: Weird SSD Issue

Borderline overpriced, actually.
But I had to get mini squeeze tubes of the "red" and "gold" to clean a tape deck rec/play switch.
It wouldn't stay "good" after repeated attempts with CRC 2-26.

...
Forum: General Computer Discussion 12-19-2018, 12:00 AM
Replies: 34
Views: 597
Posted By kaboom
Re: Weird SSD Issue

I've had some strange issues caused by dirty SATA plugs and contacts on drives, both mechanical and a brand new SSD. The SSD in question is actually running perfectly in the E6400 I'm posting from....
Forum: General Capacitor Questions & Issues 12-18-2018, 10:59 PM
Replies: 2
Views: 123
Posted By kaboom
Re: polypropylene motor start caps for crossovers?

Motor "start caps" are usually nonpolar electros, with values from 180-680uF. These come in a black phenolic case (usually), and have a seal/plug retained by a "star clip."

You're thinking of...
Forum: General Computer Discussion 12-17-2018, 05:17 PM
Replies: 31
Views: 633
Posted By kaboom
Re: Topcat's Weird Pentium Pro Builds

Gotta love classic AMIBIOS.

Does yours do the "tick, tick, tick, buuzzzzz" RAM count? :D

IIRC, the 386 and 486 AMIBIOSes did. There was a 3rd party utility, AMISETUP, that could toggle CMOS...
Showing results 1 to 25 of 500

 
Forum Jump


Badcaps.net Technical Forums 2003 - 2019
Powered by vBulletin ®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 09:13 AM.
Did you find this forum helpful?