LiquidVideo L17LCD2 flashing power light repair
Symptom: LCD monitor does not turn on, but power light flashes when
on/off switch pressed. Solution: bad capacitors on low voltage board. Details with pictures he http://www.wizardanswers.com/liquidvideorepair.html John |
LiquidVideo L17LCD2 flashing power light repair
The power supply has failed, or there is a short on one of the boards
loading the supply. These types of monitors and TV sets are serviced by board swapping. If you have a lot of service experience and the test gear, if the problem is simple you may be able to find it with conventional troubleshooting. Jerry G. ====== On Jan 18, 8:04*pm, John wrote: Symptom: LCD monitor does not turn on, but power light flashes when on/off switch pressed. Solution: bad capacitors on low voltage board. Details with pictures hehttp://www.wizardanswers.com/liquidvideorepair.html John |
LiquidVideo L17LCD2 flashing power light repair
In this case, no test equipment was needed - the pictures on the
linked page show the electrolytics have swollen ends. This was probably a "save 2 cents" design-related failure, where the capacitors are running right at their 16 volt rating. Replacing them (with 35V caps) restored "like new" operation. John On Fri, 18 Jan 2008 18:36:31 -0800 (PST), "Jerry G." wrote: The power supply has failed, or there is a short on one of the boards loading the supply. These types of monitors and TV sets are serviced by board swapping. If you have a lot of service experience and the test gear, if the problem is simple you may be able to find it with conventional troubleshooting. Jerry G. ====== On Jan 18, 8:04*pm, John wrote: Symptom: LCD monitor does not turn on, but power light flashes when on/off switch pressed. Solution: bad capacitors on low voltage board. Details with pictures hehttp://www.wizardanswers.com/liquidvideorepair.html John |
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