Troubleshooting JVC D-Series

[andy]

It's not a bad idea to start by checking areas that have obviously been hot. The heat damage isn't usually a sign of a problem, but areas that run hot are more likely to fail, or develop bad solder connections.

The first thing I would check is the HOT (horizontal output transistor). This is the large transistor on a heat sink near the flyback (high voltage transformer). If it shorts, it will either blow the fuse, or shut down the power supply. It often fails for no reason, but there are lots of things that can cause it to fail.

The problem is probably not serious, but unless you want to spend a lot of time learning about how to repair TVs, it would be better to have a professional look at it.