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Search took 0.02 seconds. Search: Posts Made By: ablacon64
Forum: Troubleshooting Laptops & Notebooks 08-25-2012, 06:47 PM
Replies: 9
Views: 684
Posted By ablacon64
Re: HP DV6810us - no boot, no power, bad power mosfets?

Follow "5VPCU" and "3VPCU" in the schematics, look for a coil at which they are connected to, then look for the same serigraph on the board.
Forum: Troubleshooting Laptops & Notebooks 11-26-2011, 01:05 PM
Replies: 2
Views: 754
Posted By ablacon64
Video training - Advanced SMD soldering techniques

1 hour and 17 minutes of good information. One of the best demonstrations I've seen on the web.

By author's choice, the video can not be incorporated, watch on youtube:
...
Forum: Troubleshooting Laptops & Notebooks 11-14-2011, 05:22 AM
Replies: 6
Views: 1,200
Posted By ablacon64
Re: Acer Aspire 5920G Will Not Turn On

Check for the basic pwm 5 and 3 volts.
The schematics for that motherboard is here:
http://www.4shared.com/document/x1ZU_kyO/QUANTA_ZD1_-_REV_E.html
Forum: Troubleshooting Laptops & Notebooks 11-13-2011, 08:43 AM
Replies: 12
Views: 1,738
Posted By ablacon64
Re: Acer Aspire 4520 Power Problem

This is normal, not a problem with the CPU. You should check the PWM first.
Forum: Troubleshooting Laptops & Notebooks 10-26-2011, 07:16 AM
Replies: 4
Views: 942
Posted By ablacon64
Re: usb flash drive repair

Congrats! I've fixed some flash drive just by resoldering the 5v and ground solder joints. Users break it a lot! :)
Forum: Troubleshooting Laptops & Notebooks 10-13-2011, 10:05 PM
Replies: 3
Views: 940
Posted By ablacon64
Re: Toshiba A100 - Ticking noise when plugged in

Looks like something is shorted. You should check transistors and diodes in that area.
Forum: Troubleshooting Laptops & Notebooks 10-08-2011, 12:51 PM
Replies: 513
Views: 112,900
Posted By ablacon64
Re: Toshiba Satellite - Locks up when plugged in

Most good fluxes are no clean. But you can clean with isopropyl alcohol. I use ethyl acetate (CH3COOCH2CH3). It's a very strong solvent and does not damage the board. It's more expensive than...
Forum: Troubleshooting Laptops & Notebooks 10-07-2011, 08:18 AM
Replies: 513
Views: 112,900
Posted By ablacon64
Re: Toshiba Satellite - Locks up when plugged in

b700029, he probably meant flux paste.

PVH, congrats, perfect job!
Forum: Troubleshooting Laptops & Notebooks 10-06-2011, 08:15 PM
Replies: 513
Views: 112,900
Posted By ablacon64
Re: Toshiba Satellite - Locks up when plugged in

Congratulations PVH!
Forum: Troubleshooting Laptops & Notebooks 10-05-2011, 06:39 PM
Replies: 513
Views: 112,900
Posted By ablacon64
Re: Toshiba Satellite - Locks up when plugged in

I don't see a problem but you can use only 3 of them if you want to.
Forum: Troubleshooting Laptops & Notebooks 10-05-2011, 03:17 PM
Replies: 513
Views: 112,900
Posted By ablacon64
Re: Toshiba Satellite - Locks up when plugged in

I don't know those e57 caps but normally "e" stands for 2.5 volts, so it will work (if "e" in this case is really 2.5v).
Forum: Troubleshooting Laptops & Notebooks 10-05-2011, 01:03 PM
Replies: 513
Views: 112,900
Posted By ablacon64
Re: Toshiba Satellite - Locks up when plugged in

Is it e57 or eS7?
Forum: Troubleshooting Laptops & Notebooks 10-05-2011, 08:18 AM
Replies: 513
Views: 112,900
Posted By ablacon64
Re: Toshiba Satellite - Locks up when plugged in

Cold solder may cause it to charge normally when not in use, and do not charge at all when up and running.
Please, notice that I've never had a case where a Toshiba would turn off because of this...
Forum: Troubleshooting Laptops & Notebooks 10-04-2011, 09:15 PM
Replies: 513
Views: 112,900
Posted By ablacon64
Re: Toshiba Satellite - Locks up when plugged in

abo0badr, you should check other things first. Your model has a very common issue with the DC jack. Check for cold solder joints.
Forum: Troubleshooting Laptops & Notebooks 10-04-2011, 10:15 AM
Replies: 513
Views: 112,900
Posted By ablacon64
Re: Toshiba Satellite - Locks up when plugged in

Too much higher value. I wouldn't do so.
Forum: Troubleshooting Laptops & Notebooks 10-04-2011, 10:12 AM
Replies: 513
Views: 112,900
Posted By ablacon64
Re: Toshiba Satellite - Locks up when plugged in

wmbuddhi, there was a 128 before. You don't need that much for a 907 but it'll also work.
Forum: Troubleshooting Laptops & Notebooks 10-01-2011, 10:18 AM
Replies: 513
Views: 112,900
Posted By ablacon64
Re: Toshiba Satellite - Locks up when plugged in

Make it a little higher, never a little lower. ;)
Forum: Troubleshooting Laptops & Notebooks 09-18-2011, 07:39 AM
Replies: 513
Views: 112,900
Posted By ablacon64
Re: Toshiba Satellite - Locks up when plugged in

No problem.
Forum: Troubleshooting Laptops & Notebooks 09-05-2011, 07:29 PM
Replies: 6
Views: 1,606
Posted By ablacon64
Re: Acer Aspire 5520 dead

Not a problem if you know what you're doing and specially if you did not charge for the job. Anyway, most "reballers" started like that, you first reflow, then you get more courage and start to heat...
Forum: Troubleshooting Laptops & Notebooks 09-04-2011, 04:30 PM
Replies: 6
Views: 1,606
Posted By ablacon64
Re: Acer Aspire 5520 dead

Unfortunately, it won't last. This is a common problem and if you want long term results you need to remove the chip and exchange the solder spheres.
Forum: Troubleshooting Laptops & Notebooks 08-10-2011, 08:45 AM
Replies: 15
Views: 1,498
Posted By ablacon64
Re: How to fix ATI 9700 GPU

Yes, you can use it with a hot air station to remove the ATI chip.
Forum: Troubleshooting Laptops & Notebooks 08-04-2011, 07:45 PM
Replies: 15
Views: 1,498
Posted By ablacon64
Re: How to fix ATI 9700 GPU

http://www.youtube.com/watch?v=97nxZwHG5bA
Forum: Troubleshooting Laptops & Notebooks 07-30-2011, 11:48 AM
Replies: 10
Views: 1,467
Posted By ablacon64
Re: Compaq CQ60 Wont Charge( MultiMeter TEST)

It may be a lot of things. First you should check the voltages, 3v, 5v, power button voltage, etc.
You can start with the coils.
It's gonna be very difficult to help you without at least those...
Forum: Troubleshooting Laptops & Notebooks 07-29-2011, 03:23 PM
Replies: 10
Views: 1,467
Posted By ablacon64
Re: Compaq CQ60 Wont Charge( MultiMeter TEST)

Does the notebook still works on battery?
Forum: Troubleshooting Laptops & Notebooks 07-29-2011, 09:00 AM
Replies: 10
Views: 1,467
Posted By ablacon64
Re: Compaq CQ60 Wont Charge( MultiMeter TEST)

Acer is normally 19v, if the Acer ac adapter is running fine, then your multimeter is bad.

This Compaq ac adapter is 18.5v, you should get the values measuring with the red probe inside and the...
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