Difference between revisions of "Problem with broken inverter"
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If not, a new inverter can commonly be purchased cheaply and replacing it is a quick and easy procedure on most ThinkPads. You will find it described in the hardware maintenace manual of your [[:Category:Models|model]]. | If not, a new inverter can commonly be purchased cheaply and replacing it is a quick and easy procedure on most ThinkPads. You will find it described in the hardware maintenace manual of your [[:Category:Models|model]]. | ||
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| + | You should also check your power supply; out-of-specification voltage can lead to the same symptoms. | ||
Revision as of 10:32, 19 September 2006
Information about the problem of a broken display power inverter.
Problem description
If your displays backlight doesn't come on, the cause may be a broken inverter. A typical symptom is that the backlight comes on for a second when you start your system, but goes off immediately again. Also, in that case you will be able to see something (very faint) on the screen when the surrounding is bright enough.
The inverter converts the low-voltage DC electricity from the battery to high-voltage AC to drive the fluorescent tube.
Affected Models
- all
Affected Operating Systems
- all
Solutions
You can have IBM fix the problem if your ThinkPad is still in warranty.
If not, a new inverter can commonly be purchased cheaply and replacing it is a quick and easy procedure on most ThinkPads. You will find it described in the hardware maintenace manual of your model.
You should also check your power supply; out-of-specification voltage can lead to the same symptoms.
