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Search: Posts Made By: kc8adu
Forum: General Computer Discussion Yesterday, 06:09 AM
Replies: 695
Views: 157,178
Posted By kc8adu
Re: Your Best Dumpster Finds

that emerson reminded me .
found a lau reversible box and a wood mathes cooler on the curb at the same spot a few weeks back.both are easily fixed.as a bonus a deluxe portacolor.the one with...
Forum: General Capacitor Questions & Issues Yesterday, 05:41 AM
Replies: 20
Views: 248
Posted By kc8adu
Re: QDI mainboard with bad caps - Need some help

the main reason large capacitors were used in vrm outputs was their lower esr.
not because the capacitance was required.
the 820@2.5 is more than adequate all around.
and they wont die in the...
Forum: Power Supply Design and Troubleshooting 10-21-2017, 11:34 AM
Replies: 22
Views: 295
Posted By kc8adu
Re: Apevia / Aspire ATX-AS520W power supply…. aspires to be decent

and i have fixed a few of these for the bling crowd.
good caps,relubed fans,and of course real uv leds make them hold up ok.
did one a few weeks ago.
Forum: Power Supply Design and Troubleshooting 10-21-2017, 11:27 AM
Replies: 22
Views: 295
Posted By kc8adu
Re: Apevia / Aspire ATX-AS520W power supply…. aspires to be decent

i have tested the fuckyou 1650 pulled from an unused psu.
it just barely made 1000uf and .21 esr.
garbage from the start.
Forum: Troubleshooting Computer Displays 10-20-2017, 06:40 PM
Replies: 3
Views: 88
Posted By kc8adu
Re: Record uptime for a HP L1955? :)

does it roll over?
i have the compaq version on my server rack.on over 8 years 24/7 as it is on a kvm and used for the dvr.
same thing here.recapped and put in service.
Forum: General Capacitor Questions & Issues 10-20-2017, 04:56 PM
Replies: 20
Views: 248
Posted By kc8adu
Re: QDI mainboard with bad caps - Need some help

i use 820@2.5 polys on vrm output.
http://www.badcaps.net/store/product_info.php?cPath=25&products_id=76
no need for anything exotic here.
the zl on vrm input are still fine.never see those fail....
Forum: Power Supply Design and Troubleshooting 10-13-2017, 07:54 PM
Replies: 1,381
Views: 247,866
Posted By kc8adu
Re: the gutless, bloated, and fried power supply hall of shame

what regulation?
and who cares about line/load isolation?
Forum: Power Supply Design and Troubleshooting 10-13-2017, 07:44 PM
Replies: 1,381
Views: 247,866
Posted By kc8adu
Re: the gutless, bloated, and fried power supply hall of shame

noname pos at supply found in industrial equipment.
more wire jumpers than parts.
Forum: Troubleshooting Game Consoles & Other Weird Devices 10-07-2017, 07:27 AM
Replies: 8
Views: 101
Posted By kc8adu
Re: hy1908 mosfet equivalent .hoverboard

too many of these shit "hoverboards" have no monitoring taps to a bms.
10s li-ion with no bms=FIRE!
Forum: Troubleshooting Game Consoles & Other Weird Devices 10-07-2017, 07:24 AM
Replies: 46
Views: 645
Posted By kc8adu
Re: EcoSmart 5csbr650stq1d03

or if a bad tube is rectifying.
the ballast WILL overheat!
Forum: All Others Motherboards 10-04-2017, 06:48 AM
Replies: 3
Views: 1,619
Posted By kc8adu
Re: Apple MacBook Pro 820-2530

infamous nvidia gpu death.
Forum: Power Supply Design and Troubleshooting 10-04-2017, 01:25 AM
Replies: 13
Views: 326
Posted By kc8adu
Re: Any idea what's wrong with a PSU that runs with a tester but not a motherboard?

if the op needs such a unit yes.
you should see some of the old oddball stuff i repair because its the only type that fits and the machine needs to be kept going forever.
how about a packard bell...
Forum: Troubleshooting TVs and Video Sources 10-04-2017, 01:18 AM
Replies: 11
Views: 261
Posted By kc8adu
Re: LG 42LE4500 PSU Replaced Backlight Failing Again

multiple shorted leds on multiple strips.
not uncommon.
the increased drop across the regulators is cooking them as mentioned earlier.
if you fix it update the firmware as change were made to...
Forum: Troubleshooting TVs and Video Sources 10-04-2017, 01:14 AM
Replies: 39
Views: 382
Posted By kc8adu
Re: Samsung plasma wont power on pn50a550

there are 2 47uf tantalum/poly caps in 2 seperate dc-dc bucks in that area.
replace both.
never had to replace ic.its always those 2 caps.
3.3 usually dies first.
iirc the other is 2.5.
i have...
Forum: Power Supply Design and Troubleshooting 10-03-2017, 07:24 AM
Replies: 13
Views: 326
Posted By kc8adu
Re: Any idea what's wrong with a PSU that runs with a tester but not a motherboard?

at 11 years all the caps in that unit should be replaced.
they were junk new and it gets worse with age.
Forum: Power Supply Design and Troubleshooting 10-03-2017, 07:14 AM
Replies: 11
Views: 340
Posted By kc8adu
Re: Pushing an AC inverter over the edge...

did some research and the monitor top is from 1935.
a kill a watt showed around 75w running.
as for a modern fridge disable the door heaters and defrost if you can.
in an emergency you dont need...
Forum: General Capacitor Questions & Issues 09-29-2017, 06:06 PM
Replies: 2
Views: 258
Posted By kc8adu
Re: Panasonic TF marking?

same noted on the case of 2200/16 fr i got in.
look like genuine pannies to me and came from digikey.
i specifically got them from digikey to ensure authenticity.
last thing i want is fakes in a...
Forum: General Computer Discussion 09-21-2017, 05:43 PM
Replies: 1,709
Views: 270,427
Posted By kc8adu
Re: best cheap/free scores 1.1

https://en.wikipedia.org/wiki/Centipede_(video_game)
Forum: General Computer Discussion 09-20-2017, 04:32 PM
Replies: 1,709
Views: 270,427
Posted By kc8adu
Re: best cheap/free scores 1.1

got a free centipede.
will haul it home over the weekend.
the guys original intent was to have me repair it but now he has to move to a new job.
told me to come haul it off.
Forum: General Computer Discussion 09-20-2017, 06:56 AM
Replies: 1,709
Views: 270,427
Posted By kc8adu
Re: best cheap/free scores 1.1

mine are all 558's.
and the video on those seems to be proprietary.
these things are never cheap when you need one.
much nicer being on the supply side of the deal.
btw i got funny looks from a...
Forum: General Computer Discussion 09-17-2017, 06:19 PM
Replies: 33
Views: 751
Posted By kc8adu
Re: Hard drive reliability

from my main desktop.
its os only.
storage is on a raid 5.
34k on it.
had over 100 these as server pulls.
its a velociraptor marked enterprise storage.
Forum: Troubleshooting Game Consoles & Other Weird Devices 09-17-2017, 03:05 PM
Replies: 3
Views: 186
Posted By kc8adu
Re: PS4 HDMI Issue

hdmi switch chip dies when jack gets mangled.
mn86471a
Forum: Power Supply Design and Troubleshooting 09-17-2017, 02:30 PM
Replies: 20
Views: 339
Posted By kc8adu
Forum: General Computer Discussion 09-17-2017, 01:56 PM
Replies: 1,709
Views: 270,427
Posted By kc8adu
Re: best cheap/free scores 1.1

you too?
i will post a pic of one i polymodded.
been doing it for 8 years with no comebacks.
these machines run 24/7/365.
no surprise to see the kzg popped.those die on the shelf.
but even the...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 09-17-2017, 12:45 PM
Replies: 10
Views: 210
Posted By kc8adu
Re: my s3 mini wont turn on

easiest way is to plug it into a usb monitor.
battery that low may be in pre charge.about 50ma.
there will be no signs of life till it goes to full charging current.
then it will go to startup...
Showing results 1 to 25 of 500

 
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