Re: Toshiba Satellite - Locks up when plugged in
UPDATE : my toshiba A205 satellite has seen heavy usage since doing this repair 19days ago, and so far so good.
i've noticed people asking about an adequate replacement for the NEC TOKIN OE128, i would like to report that i have had good results with 4 KEMET T520 SMT polymer caps(2.5V 330uF) .
i would also like to remind others out there, that i managed to fix this , even though i have little soldering experience.
SUGGESTIONS:
1) dont be fooled by the close up pics on this site...
branko
Member
Last Activity: 11-14-2014, 06:37 AM
Joined: 03-01-2012
Location: Zabreg
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Re: Toshiba Satellite - Locks up when plugged in
Once again, you were right!
over the weekend, i cleaned up the motherboard with some contact spray, looked everything over one last time, and then took my time to reassemble the laptop. i am happy to report that it is working once again.
... if anyone else is interested, i used 4 KEMET T520 SMT polymer caps(2.5V 330uF)
its been in use for 3 days now, and so far, so good
i would like to thank everyone on the board that contributed the abundance...Leave a comment:
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Re: Toshiba Satellite - Locks up when plugged in
hello again ,
i just figured out why i was getting two different multimeter measurements for the different sets of pads. it turns out that when probing the pads, the multimeter readings are polarity sensitive. so when i used the red probe on the positive pad and black probe on the negative pad , for some reason the ohm reading shot up to 1800ohms, however when i used the red probe on the negative pad and black probe on the positive pad, i got a reading of about 80ohms, the same applies for both sets of pads.
...Leave a comment:
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Re: Toshiba Satellite - Locks up when plugged in
> yep, i am getting 0 ohms when measuring between the two + pads as well as between the two - pads.
unfortunately, i do not repair electronics on a regular basis, so my multimeter skills are horrible.
once again you were right. i forgot to try measuring oHMs with the next higher up scale( on my multimeter its 2000ohms). when i measured resistance using the 2000 ohm scale, here's what happened:
the reading gradually increased from 500ohms to 1862 ohms, where it stopped after exactly 60 seconds....Leave a comment:
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Re: Question
1) i have checked the connections between the cap terminals and motherboard pads, and have obtained a reading of 0 ohms between each cap terminal and the pad that it happens to be on. My multimeter has a continuity test, which emits an audible beep when a circuit has continuity, i have used this setting and it beeps when probing between MBO pads and the cap terminals on that particular pad.
2) i used the lowest scale available on my multimeter which is the 200 OHM scale. Unfortunately , i did not take...Leave a comment:
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Re: Question
Semantics... i call them DVM's (digital volt meters) you call them Multimeters. From now on i will use the term Multimeter. sorry my mistake...
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Question
hey guys,,
i finally got around to replacing the NEC TOKIN 0128 with 4 KEMET T520 SMT polymer caps(2.5V 330uF).
After finishing the job, i used a digital volt meter to check for continuity between the + and - sides(short circuit test) and noticed that the digital volt meter beeps for about 1 second and then stops. Is this normal or does it indicate that i did a crappy job soldering and caused some sort of short circuit?
Is there any good test i could do prior to assembling the laptop, that would ensure that i dont fry the...Leave a comment:
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Re: Toshiba Satellite - Locks up when plugged in
Wow! thanks . The other company that i contacted via email wanted $120 (US) just to ship 4 capacitors to Croatia.
I plan on giving the people at RS a call today. I checked out your photobucket pics and noticed under pic#7 that you think that the T520 SMT polymer cap, caseV, 2.5V 330uF would be a good choice. I plan on ordering those and trying them out, will post the results when i get the job done.
thanks again...Leave a comment:
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Re: Toshiba Satellite - Locks up when plugged in
hello to all,
I plan on replacing my OE128 capacitor, with 4 330uf, 2.5v tantalum capacitors.
could someone please provide me with a webstore/webshop which sells tantalum capacitors, and offers normal priced shipping?Leave a comment:
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BENQ Q7C3 Need Help Identifying Proper Power Board
Hey guys,
a while back i diagnosed my cousin's Benq 17" FP767 ver.2 LCD monitor with a bad power board.
here is a pic of the label on the back:
[url]http://i1174.photobucket.com/albums/r614/terrancetoni/benq_rear_label.jpg?t=1330637387[/url]
unfortunately, i made the mistake of ordering a replacement power board via ebay without first opening the monitor to verify the power board number. well anyways, the ebay seller assured me that the power board he was selling would be compatible with the LCD, unfortunately it was not(connectors do not fit)....Last edited by branko; 03-01-2012, 03:52 PM. -
Re: New Members - please post your introductions here
hi guys,
am a complete noob, but hope to fix a lcd power board with the help of this forum.Leave a comment:
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