[rovyko]

My Sony PS3 3D Display has the well-known problem where its screen shuts off for a few seconds every once in a while. I noticed it got significantly worse this winter, when I opened the window for some fresh air.

Did a few tests, and sure enough, if the room temperature is below 22C and the screen has been on for about 10 minutes, then it starts to shut off frequently. My guess is the ambient temperature is causing some metal component to contract and break a connection.

[londons_explore]

Screens and audio devices shutting off periodically is a typical sign of clock drift.

It's where a graphics card is outputting 60Hz and the screen is expecting to receive 60Hz, but one of them is slightly off (60.0001Hz).

At some point the sending and receiving get too far misaligned, some error condition is triggered, and the whole thing restarts.

It's a design flaw really - you should never recreate someone else's clock signal.

There are some times it's impossible to avoid - for example a picture in picture mode has to synchronise with two other people's clock signals for each of the incoming images.

In your case, temperature will affect the speed of the oscillator making it happen more frequently unless you have the ideal temperature.

[robocat]

> My guess is the ambient temperature is causing some metal component to contract and break a connection.

That failure mode is less likely to cause a "well-known problem" and would show up in other circumstances (not just temperature).

I thought maybe capacitance, but it looks as though they are designed to be fairly flat deltas around 20°C:

https://www.murata.com/products/emiconfun/capacitor/2012/10/...

[lightedman]

No, it's your tab connectors at the edge of the screen pulling away - those aren't soldered, they're literally glued on and the glue is very temperature-sensitive.

Source: I used to do LCD screen repair for Philips, LG, and Sony. Next to TCON board problems, the most common issue was panel edge IC glue failure.