https://tvrepairinformation.weebly.com/ Sometimes locating which component is causing a short to ground can be a time consuming process. You can waste a lot of time UN-soldering components to find the source of your short if you don't own a sensitive ohmmeter, but even if you don't there is another option you can use if your Multimeter has a Millivolt scale.
In this video I demonstrate how to use it in combination with your external power supply to isolate which of your components may be causing a short to ground.
Technically speaking the only voltage drop you really see in this example is from the shorted
diode. The other diodes direction does not allow any current flow, and capacitors do not pass DC. I should have used slightly different words to describe this example.
The TV used in this video is a Philips model number 39PFL2608/F7 The diode which I confirmed to be bad is a 30 volt 1/2 watt zener. Its location is D652.. DIODE part number is 1ZB30BB NDWZ0001ZB30.