A computer host for dust removal will unload mainboard,toshiba satellite l30-105 laptop cpu fan reshipment is found that chassis panel power supply reset switch, hard disk power light and horn and two USB terminal plug, because no mark. The plug can't recover and cannot use.
Then, using the panel on the device function characteristics, had the order one try plug. Considering on the mainboard joint panel plug seat needle group, generally only with low pressure low current (USB needle group except), therefore bold a try.
First, you have to find the plug of the power switch position, the method is to supply power on, and then hold panel on the power switch don't put, will switch the plug of the plug one here in the needle. When inserted into a two support after needle of switch power supply fan start, explain the power switch A computer host for dust removal will unload mainboard,toshiba satellite l20-sp231 laptop cpu fan reshipment is found that chassis panel power supply reset switch, hard disk power light and horn and two USB terminal plug, because no mark. The plug can't recover and cannot use.
Then, using the panel on the device function toshiba satellite l30-101 laptop cpu fan characteristics, had the order one try plug. Considering on the mainboard joint panel plug seat needle group, generally only with low pressure low current (USB needle group except), therefore bold a try.
First, you have to find the plug of the power switch position, the method is to supply power on, and then hold panel on the power switch don't put, will switch the plug of the plug one here in the needle. When inserted into a two support after needle of switch power supply fan start, explain the power switch seat needle may find right. Note: if the plug in a needle inserted into other ground needle, so power while also can start, but the toshiba satellite l20-s310td laptop cpu fan rest of the one or more plug will find no correct position. If appear this case, you will switch plug a pinhole inserted into the adjacent needle can. Start computer and then find the power indicator of a needle. Because light emitting diode is polar components (hard disk lamp), if the plug after reaction can not bright, so should be positive and negative try plug. If the hard disk read time, such as inserted into a two needle is flashing light, this group of needle may be hard disk lamp seat needle, then can will be hard disk light seating. If the brightness of the light is light or dark, this kind of circumstance are considered not check the number, should continue to search.
The next get reset switch seat needle position, will reset switch hold not to put, will plug the switch to the rest of the needle position, if the system appear reset. This group is reset switch position. The rest of the horn plug, using computer alarm sound characteristics is very easy to find the location of the should be inserted. In principle, horn also points are negative, but chassis little horn regardless of also just as well. Due to the USB terminal plug into two four core plug. Two groups of joint of shielded wire inserted a is negative. On the mainboard USB a needle for a list of eight needle, assuming that head needle or tail needle for the first stitch, using a multimeter to measure 1 needle and toshiba satellite l20-c430 laptop cpu fan eight needle is + 5 v (voltage to ground), 4 needle and five needle for negative (resistance to earth). This shows that plug 1 hole is + 5 v a, 2, 3 hole for data bits, 4 hole for negative patients (shielding layer), another group, too, so two plug respectively were para insert. Then try USB terminal had better use MP4 try, because the USB MP4 power supply loop string a diode. If power joint was also won't damage. The above method is forced to do so and, perhaps is fluky without a problem. Every reader in remove the motherboard, such as the discovery of a pin definition is not clear, shall be recorded after the panel will lead plug pulled out, lest cause needless trouble.
http://newbatterystore.blog.pink.hu/archives/2012/09/01/Remove_DELL_notebook_computer_boot_password/
http://www.free-blog-site.com/blog2.php?user=startbattery¬e=581116
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