Question about Toshiba Satellite 2805-S603 Notebook

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When ac is plugged in the power light blink & notebook unresponsive

My ac post broke and i currently have the adapter spliced and soldered to the board.. but even before i Frankenstein'ed it in this fashion... the power light blink & notebook unresponsive when the ac is plugged in. it also wont charge my battery. when ac is not live.. the notebook works using battry power, but being the battery is LOW it shuts down after a few seconds. and plugging in ac causes it to overide battery power and shut down.
??????????????????????? HELP ME PLEASE...

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Sounds like your ac adapter (brick) is bad and not supplying correct voltage/amperage.

Posted on Apr 03, 2008

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Contact Service Center.

Posted on Apr 03, 2008

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You want the AC adapter, not the charging unit. If there is sufficient undamaged cord, you can splice both the wires together and use the AC adapter.

Carefully identify the wires - one will have a raised rib or line printed on it. Strip 1/2 inch of insulation off each end of all wires. Matching the wire pairs, twist the stripped wires together. Fold the stripped wire back in line, and wrap the spliced wire connection with electrical tape. Do this for the other wire. Inspect you work to ensure the spliced wires are completely covered and do not touch each other. Wrap the entire spliced section in electrical tape and hook it up to the charging base.

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Ac adapter port does not work


You probably need a new one, you could try to get a replacement from casio or try to get an after marked one. They sell the adapters that have multiple ends and voltage settings, if you go this way you need to be careful. Look at the old adapter, you need to know how the voltage (Will probably be between 6 and 12) and the current which is measures in amps (A). Will probably look something like this:
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I am starting to ramble, if you do intend to get another adapter and splice I would be happy to help you the rest of the way, but i will end it here for now.

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What would cause white moisture film on a power supply board? This is for a 51'' hitachi


Condensation could occur on any surface that was cold and then exposed to moist warm air but to create that inside a set?
If the white deposit isn't really moist, it may be the residue from a circuit board that was poorly cleaned. These are about 95% wave soldered on the underside and the solder has loads of flux floating on top of the solder to ensure a good flow of solder on leads and the board. The flux can produce a white deposit if it isn't thoroughly removed in a solvent bath. The component side of the board is mostly soldered via a 'reflow' method that reheats a tin/lead film on the component and the 'land' on which it is soldered. The amount of flux used in this process is quite small and rarely any flux survives even a lousy cleaning cycle. I've seen a bunch of circuit boards and have occasionally seen traces of flux irregularly present on them but never enough to appear like a consistent film.
If you have a film or deposit surrounding individual components, especially capacitors, this can be caused by the loss of electrolyte from a failing capacitor and is a sign of coming (or already developed) problems. Once this chemical (which does leave white deposits) has leaked, the capacitor is shot and needs replacement.

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Look for bad solder joints in the inverter circuits, look at the round inductors (4) leads soldered to the circuit board, post or send pictures for futher help.

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