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Check the 13.5V regulator and associated parts. Refer the power supply schematic diagram to get details. If you wish to get some details, http://electronicshelponline.blogspot.com/ Pull up older posts.
I give up! Why would you need a schematic for a computer power supply? I've been in the computer business for over 30 years and have never needed a power supply schematic. Just curious!
Working from the point of view of the power cord, the first module that is generally encountered is the power supply. Search for a service manual, sometimes user manuals will also have a schematic, to help you troubleshoot the power supply section. If you are lucky, the power supply board will have the outputs stenciled on the PCB itself, making the task of verifying output voltages easier.
First take the back off and look for blown fuses; fuse should be on the circuit board close to where the AC cord attaches.
If that doesn't work, you are to a point where you need a schematic and a voltmeter.
Most all TV's use pulse power supplies today and are difficult to repair.
The power supply will go into shutdown if it detects an overload anywhere in the TV. This makes it look like a power supply problem and it may not be.
hello the fuse would be located in the power supply, if the fuse is black it's blown if you put another 1 in and it blows again you have dead short somewhare make sure the powers off and the same rated fuse, ps there may 2 fuses
You just bought a new power supply for the monitor? Did you set the B+ voltage to the correct settings. Rebuilt power supplies for CRT monitors are not set correctly at the factory. Use your schematic to determine the proper B+ and then set this under load.
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