Re: Help with Delta AP-396AM TV power supply

Thanks everyone! So just to double and tripple-check what you are saying:
These two babies shown in the pic ("GT3") aren´t these diodes? Because if I put the DMM in diode test mode, it tests short for both diodes. I´m pretty sure it should test like a normal diode, like ~0.5V in one direction and OL in the other direction. It simply shouldn´t show 0 ohms in continuety mode (beep), unless I´m doing something wrong here?...

Re: Help with Delta AP-396AM TV power supply

Thanks! I'll check that out, but I need to forst replace the shorted diode I guess.
Here's a video showing contuety testing beeping on mostly the small black (diods?) With locations marked with FBxxx. I'm sure there must be a short somewhere, or am I doing wrong? (The shorted diode is removed in the video):

[url]https://youtu.be/4yXOOKzcREk?si=yrFOSXkcoQzqg1dq[/url]Re: Help with Delta AP-396AM TV powe....<br /> Here's

My Sony 85 inch TV from 2019 stopped working. Troubleshooted the error to the Power supply board, where the 3,3V standby voltage is completely missing.

I am used to pinball repairs but never got into repairing power supplies.
I would really love to fix this instead of bying a new board, but need some guidance.

The power boad is a DELTA AP-P396AM GL93, (1-001-394-11).
Any schematics would be great but I can't find any.

What's done so far, with board removed from TV:
Main fuse OK.
Voltage over power cord connection (incoming)...

Re: New Members - please post your introductions here

Hello, new member here Love to learn more about troubleshooting electronics. I am collecting old retro machines and refurbing them, mostly pinballs. Cheers!