Question about Sony FD Trinitron WEGA KV-24FS120 24" TV

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TV will not switch on

After disconecting video from TV our tv did not turn on. The fuse is ok, when plugged in and switched on it does make a sound in the back like it normally does, but does not power up, no light, nothing at all. I have removed the back and given it a clean/dust but still nothing.

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Re: TV will not switch on

This can be caused from numerous reasons, I will specift only the most common ones which doesn't require professional skills to deal with. The "easy" initial technical troubleshooting that can be performed, without a schematic and without a service manual, is using your DMM to make voltage readings and test components, also do a careful visual inspection and make not of any faulty or cracked solder connections around the high heat producing components and other pertinent details. Given the symptoms you reported, it should be obvious that the areas of initial troubleshooting interest in the television circuitry are the main PS, B+ regulation, and B+ distribution, standby B+ , the HV and HOT area.... also pay attention to the and flyback derived B+ circuitry and components.

Posted on Mar 27, 2006

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