Re: Toshiba Satellite C855-27U dead
Same as me, but my chip is tps51123 (Toshiba C640). And i'm not sure if i change the chip the board can be turn on. Right now the chip will heated up of i plug in the power adapter.
tiubxray
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Last Activity: 02-11-2017, 03:03 AM
Joined: 06-13-2014
Location: Sungai Petani
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Re: Toshiba Satellite C640 No Power Need Help
Ok. The black probe I put on the screw part on the mobo assuming it is the ground and the red probe I put it on the 3r3 135 b3p terminal (both of them one at a time)
Refer the attachment.
P.S. The below resistor labeled L6200 with black font was actually L6201....Last edited by tiubxray; 07-03-2014, 09:57 PM.Leave a comment:
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Re: Toshiba Satellite C640 No Power Need Help
Got to buy magnifying glass. My eyes hurts squinting too much.
Anyway, still searching.......Leave a comment:
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Re: Toshiba Satellite C640 No Power Need Help
dj_ricoh?...any clues please?...
[url]http://kythuatvitinh.vn/forum/laptop/th%E1%BA%A3o-lu%E1%BA%ADn-s%E1%BB%ADa-ch%E1%BB%AFa-laptop-repair-discussion/8568-schematic-toshiba-satellite-c640-c650[/url]Re: Toshiba Satellite C640 No Power ...640-c650[/url]Leave a comment:
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Re: Toshiba Satellite C640 No Power Need Help
Does this do any help?...
...Leave a comment:
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Re: Toshiba Satellite C640 No Power Need Help
There is another chip identical to the TPS51123, just below it there lies TPS51461.Leave a comment:
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Re: Toshiba Satellite C640 No Power Need Help
It is like my multimeter display it. I do this check 5 times to make sure there is no mistake.
Done that already, nothing happen. Just the chip is getting hotter if I plug in the adapter.
Thanks for your help. I really appreciate it.
...
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Re: Toshiba Satellite C640 No Power Need Help
OK, here's the reading from pin 1 to pin 24 counter clockwise starting from the mark.
Pin1 (TRIP1) - 0 V
Pin2 (VFB1) - 0 V
Pin3 (VREF) - 1.99 V
Pin4 (TONSEL) - 3.32 V
Pin5 (VFB2) - 0 V
Pin6 (TRIP2) - 0 V
Pin7 (VO2) - 0 V
Pin8 (VREG3) - 3.32 V
Pin9 (VBST2) - 1.38 V
Pin10 (DRVH2) - 0 V
Pin11 (LL2) - 0 V
Pin12 (DRVL2) - 0 V
Pin13 (EN0) - 1.76 V
Pin14 (SKIPSEL) - 0 V
Pin15 (GND) - 0 V
Pin16 (VIN) - 19.38 V
Pin17 (VREG5)...Last edited by tiubxray; 06-29-2014, 01:16 AM.Leave a comment:
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Re: Toshiba Satellite C640 No Power Need Help
Pending reading......Last edited by tiubxray; 06-29-2014, 12:02 AM.Leave a comment:
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Re: Toshiba Satellite C640 No Power Need Help
Will do that, bought a new multimeter. My last one busted.
...
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Re: Toshiba Satellite C640 No Power Need Help
This guy do the tps51123 replacement seems so easy!!!!
[url]https://www.youtube.com/watch?v=kRbB4ufRpN8[/url]Re: Toshiba Satellite C640 No Power ...B4ufRpN8[/url]Leave a comment:
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Re: Toshiba Satellite C640 No Power Need Help
Thanks. If you have some pics it will help me a lot. Thanks again for the advice....
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Re: Toshiba Satellite C640 No Power Need Help
OK BOSS!!!
My multimeter probe quite thick. Is it dangerous if I accidentally short between the pins?...Leave a comment:
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Re: Toshiba Satellite C640 No Power Need Help
Does this have to with anything?...
[url]https://cdn.badcaps-static.com/pdfs/fcd864ede0858222893137294292b2b0.pdf[/url]
[url]http://www.ti.com/product/tps51123[/url]Re: Toshiba Satellite C640 No Power ...tps51123[/url]Re: Toshiba Satellite C640 No Power Need Help
Does this have to with anything?...Last edited by tiubxray; 06-27-2014, 02:21 AM.Leave a comment:
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Re: Toshiba Satellite C640 No Power Need Help
One more question, is it possible to replace the chip, or does the chip is ok and the culprit is other caps?
I'm a noob, I confess first. Any guides is appreciated.
Thanks.Leave a comment:
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Re: Toshiba Satellite C640 No Power Need Help
Thanks so much for the reply. Gonna do that after finish work. Thanks again.
One more thing, does it safe if the chip is getting hot?...Last edited by tiubxray; 06-27-2014, 01:32 AM.Leave a comment:
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Toshiba Satellite C640 No Power Need Help
Hello to all badcaps forums.
I am working on this laptop friend of mine, Toshiba Satellite C640 PSC2SL-017006.
Its been more than a week now to figure out what wrong with this laptop. Plug in the power adapter (voltage tested -pass) but no light from the power led. I disassemble it and I found out that a small chip get really hot (I attached pics).
The thing is, my friend use his laptop on the bed causing the ventilation blocked. And now the cost to repair it, it's like to buy a new laptop.
So any suggestions from the "MASTERS a.k.a... -
Re: Toshiba Satellite - Locks up when plugged in
Mine was a success!! Quite hard....
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Re: New Members - please post your introductions here
Interesting forum. Provides such a huge information for a newbie like me to tinkering into a world of electronics. Should find this page sooner.
Name : Andy
Country : Malaysia
Status : Married
Occupation : Radiographer (Government)
Interest : Pc-Computer-Gadget-Phones-Smart Phone-Whatever that got circuit board in it.Leave a comment:
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Re: Toshiba Satellite - Locks up when plugged in
Same for me. Right now already removed the NEC/Tokin. Going to search at local electronic shop tomorrow for SMD caps 330uf 2.5v.
Mine Toshiba Satellite L300
1.73ghz T2370
2gb ram
120gb hdd
Igp x3100
Wish me luck.
From Malaysia.Leave a comment:
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