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Sony VGN-TZ390 Power Adapter
When choosing a new charger, choosing the Sony brand one is always going to be the safest and easiest way to go. Because Sony has been known to use a single AC adapter that is probably used on other similar units, make sure you check the part number for the correct one. If you decide to buy an non-Sony adapter, please check on both the voltage and amperage output. A universal power adapter is another possibility if you are desperate. The Sony VGN-TZ390 power adapter is needed for two reasons, to charge up the main battery and to provide a source of power for the unit.
Major symptoms of a barely functioning charger
- The laptop does not function while solely using the AC adapter
- Your Sony battery refuses to charge up all the time
- Most Sony adapters will get very warm to the touch when they are plugged in for a period of time
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