Re: Toshiba Satellite - Locks up when plugged in
can i replace tokin with this type [url]http://id.mouser.com/ProductDetail/AVX/TAJD337M010RNJ/?qs=fdqkYiOtZpdSDL1IGMRLIg%3D%3D[/url]Re: Toshiba Satellite - Locks up whe...Ig%3D%3D[/url]
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Re: asus p5kpl am/ps freeze on post screen
hello ..
i have similiar problem with biostar g31 ..it just stuck at post screen (same as your description)
my solution is remove onboard audio chip (realtek chip), after remove ..the mobo boot normaly without stuck at post screen
try it ..and post here the result
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Re: GIGABYTE Radeon HD 5970 dead?
this gpu is likely overheating .. i have too with the same symptom
maybe need reflow or reballing .. or maybe it just dead
try add a fan directly blowing to back of gpu
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Re: need help .. TOSHIBA SATELLITE C600 internal display problem
measure pin of CN3000 (LVDS conn) without lcd flexible connected , battery connected
pin 2 = 3,3v
pin 3 = 3,3v
pin 4 = 1,75v
pin 19 = 0,0v
pin 20 = 3,3v
pin 23 = 0,0v
pin 24 = 0,6v
pin 25 = 0,15v
pin 26 = 1,75v
U3000 found ..but there's seem no component connected ??...Last edited by holmes222; 04-16-2014, 11:45 AM.
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strange seasonic ss650ht voltage drop
hi all..
have a problem here with strange abnormally seasonic ss650ht
type is SS-650HT Active PFC F3
2 unit psu with same type above, act the same symptom
the problem :
- psu work ok with connected to motherboard and one sata hdd
- connected one ata drive dvd, make sata hdd not detected .. 5v voltage drop to 4,0-4,3v
- disconnect ata drive dvd, connected another sata hdd .. both sata hdd detected .. 5v voltage between 4,5-4,9v
- connect another sata hdd .. psu power loop .. 5v voltage drop to 0,5v
- 3,3v read stable at 3,25-3,35v...
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Re: acer aspire 4752 JE40 HR MB 10267-4 no power
here's the bios of mine (acer 4752 core i3)
bios version = v1.24 date 12/24/2012
backup using universal bios backup toolkit v2.0...
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Re: acer aspire 4752 JE40 HR MB 10267-4 no power
have problem to with 4752 ..
power on normal with battery ..without battery is no response power on
charging can only do in windows (laptop already on with batt)
charging in non power on laptop, charge led on then off,power button press nothing happen, remove charger, remove batt, install batt ..power on normaly
could be thic power ic broke?
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Re: repair seasonic p860 with burnt/crack mosfet
update ..
replace the pair mosfet and soldered in place again, other pair is tested ok
test with dim bulb ..result OK
test directly to wall socket ..result OK
its alive ...
measuring voltage 12v,5v,3.3v .. result OK
test with complete system, went smooth no problem
but ..
after 10 minutes operating, the mcb meter down ..psu wont power on again
disassembly ..measure mosfet replacement ..all shorted between gate-drain-source ..wth whats wrong again ??
...
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share asus 1215b flashing power led (solved)
hi .. sharing an experience with other here
my daughter laptop broken..
she said that her friend use the laptop and moving data through usb flashdisk
after a couple minutes, the laptop went shut down it self
press the power button result in blink/flashing power led, laptop won't turn on
reset bios thru shorting pin below memory slot, change memory not help at all
being not warranty anymore (only 1year warranty), open up the laptop.
powering outside the case, still flashing power led no power
first diagnose, suspecting the usb port or chip...
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Re: repair seasonic p860 with burnt/crack mosfet
test directly to the wall socket .. no series bulb .. result is mcb meter went down
unplug everything ..test again with series bulb (with not shorting green and black wire) .. result is bulb fully lit not dimming, indicating a short overthere ..5vsb not coming at all ..fuse not blown
where i mus start checking the short component ? diode/transistor ?
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Re: Power supply build quality pictorial. part 2
found this psu in old NEC MY28V/R-G case .. its ACBEL API4PC17 non-PFC rated @250w 110v (TFX based psu)
this been converted to 220v , use this psu to powering my ubuntu proxy machine
main caps : nippon chemi-con SMG
other caps are nippon chemi-con KY, rubcon YXA,YXH
fan made by protechnic MGA8012HB-A25
i get this case with psu included for about [B]5$[/B] here and the local shop have plenty stock Re: Power supply build quality pictorial. part 2
found this psu in old NEC MY28V/R-G...Last edited by holmes222; 02-02-2014, 12:04 PM.
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Re: repair seasonic p860 with burnt/crack mosfet
when jumpered with ps on ..the bulb lit dimly and then cycle on-off rapidly , but i switch off after bulb gets on-off cycle (about 2second) .. i'm afraid if there still a problem an make KABOOMM in my room ..or its safe to wait when the bulb cycle on-off rapidly until its completely off ? for 5-10second maybe ?
i know if the bulb always lit not dimmming .. there still a problem , correct ?
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Re: repair seasonic p860 with burnt/crack mosfet
update ..
measure test, still without shorting ground to ps-on wire
check the voltage via 24pin connector
- ps-on (green wire) showing voltage about 3,11v .. is this normal ?
- standby (purple) showing voltage about 4,99v
- bulb glow dim and off
measure test with shorting ground to ps-on :
- 1 cdrom + 1 fan connected
- ps-on (green wire) showing voltage about 3,11v
- standby (purple) showing voltage about 4,99v
- bulb glow and dimming glowing .. it that...Last edited by holmes222; 02-02-2014, 07:57 AM.
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Re: repair seasonic p860 with burnt/crack mosfet
thank for the information and explanation PeteS
yah i forgot to install the ferrite bead again on new mosfet ..will do that later
finished build dim build tester .. 100w bulb
test the unit and bulb just dim glow and off ..is this an indication that the unit is normal again ?
i test without shorting black and green wire , just turn on the psu switch
any suggestion ?
if i test with shorting green and black wire, should i give a load to the rail ? a fan or old cd/dvdrom...Last edited by holmes222; 02-02-2014, 04:06 AM.
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Re: repair seasonic p860 with burnt/crack mosfet
lol .. find the replacement 6R190C6 mosfet from working seasonic x series already had, actualy not to replace, just for testing purpose
if it pass the test .. i will order the original replacement
i wonder what make this mosfet burn out ??
here the result of hard work overnight till 3 AM ..
next day project = build light bulb tester and then test the unit ..thanx [B]senz_90[/B]
@senz_90 .. i live in small town in central...
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