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Sony KDL-55w805b TV does not turn on after a popping like sound

Sony KDL-55w805b TV does not turn on after a popping like sound

I have a Sony kdl 55w805b TV that I’ve been using for around 5 years.



There is always a reason why a circuit breaker trips, usually because the current passing through it has exceeded its’ rating.

If you have a DMM (digital multimeter) and know how to use it, measure the voltage output of the TV’s acdp-120n02 power adapter at the adapter’s plug that connects into the TV when it is connected to a power outlet. It should measure 19.5V DC. If there is no output or it is not this voltage at the plug, then the adapter is faulty and needs to be replaced.

If the adapter’s output is 19.5V DC then you will need to start checking the TV to see why the standby power LED is not on when the power is connected.

Here’s the service manual for the TV which should help you to find the problem. Be patient when going to download the manual. After you have passed the I’m not a robot, test and clicked on Go to Download, below the document preview box, it takes a little while to find the file and go from processing to download so that you can download it.

Here’s a compilation image of the start of the No Power Troubleshooting flowcharts and the section of the schematic diagram that shows where the power comes into the TV from the adapter.

(click on image to enlarge for better viewing).

If you don’t have a DMM, perhaps you know someone who has and who knows how to use it. At least get them to test if the adapter is OK or not.

If doing the above is too hard, contact a reputable, professional TV repair service and ask for a quote to repair the TV.

Hopefully this is of some help."

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