Question about Gateway MX3228 Notebook
When I de-soldered the power jack from the little PCB, capacitor C2 fell off. I am going to pick one up tomorrow, but I have no idea what the capacitance is. I can remeber the size since I can look at the pads on the PCB, but I don't want to put the wrong in. I phoned tech support, but they would want to charge me for their help. If someone knows where I can find a schematicn for my gateway laptop, model # MX3228, I would be most appreciative
The capacitor is most likely an electrolytic type, these are a round cyclinder device and they are polarised. From its location near the power jack it is most lkely more than 50uF and more than 20V. The information on the capactance and voltage of the capacitor is printed on the capacitor. If you are going to purchase a new one, make sure you get an exact replacement because if it is bigger in value eg. microfarad and voltage it will be too big to fit on the motherbard and if it is a lesser value, it will fail and not perform as required.
The capacitor is polarised eg + & - legs on the capacitor and these must be soldered in the correct direction on the motherboard, the white stripe on the capacitor marks the negative lead of the capacitor.
If the capacitor fell off during de-soldering of the power jack, you must have applied too much heat for this capacitor to fall off. If the capacitor is not damaged you could solder it back on the motherboard.
You should be using a temoerature controlled soldering iron, applying excessive heat to a motherboard can damage the motherboard as these boards are multilayer boards, there are circuit tracks on top, below and in the middle of the board. make sure you don't put solder across printed circuit tracks, carefully check the motherboard under a magnifying glass.
Posted on Dec 29, 2008
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Posted on Jan 02, 2017
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