Very specific question about Sony 20L2 PVM.

[drojman]

Hi folks,

Odd question.

I have a (new to me) 20L2 and wanted to try something. I took a photo of every single setting and did a factory reset. I found that the default values that it shipped with and the ones stored were exactly the same, which I found very useful and interesting, I guess whoever calibrated the monitors DID then save the settings to the ROM.

What I’ve noticed is there is a Factory Load setting (the one I used) and Factory Standard. My theory and what I can ascertain from the manual is that loading the standard setting would be more like what I think people assume the reset does, reset the monitor to a “true” default setting. Even though I have the settings saved I am hesitant to do so but trying to learn as much about the monitor as possible…

So has anyone got any experience with this? Any idea if I’m completely barking up the wrong tree?

Thanks!

Quick edit:

What I’m fairly confident this is NOT is a setting that overwrites the saved factory settings, to do that you have to enable a maintenance flag to ensure you don’t do that.

Thanks

[Dochartaigh]

100+ PVM's later the VERY first thing I do is a factory reset on them as soon as I get home – never had a SINGLE problem with it either (despite people saying it can brick the monitor).

It is honestly (especially when most don't have hour counters) a pretty rock-solid way to see how much age/use the monitor has. If the geometry doesn't change much, you know somebody didn't go in there and tweak the shit out of settings to compensate for aged/worn components. Having the brightness/contrast knobs in the middle and still have the picture look right is another good indicator of use on the low side (i.e. somebody didn't jack those up as well to compensate for a worn monitor).

Sure, somebody could have tweaked crap, then saved it as the factory setting and did the flag thing or whatever... but honestly I'm pretty well versed in these and I don't even know 100% how to do that... do doubt the majority of these had that done, and stand by how this is something you should do as soon as you get any PVM.

[drojman]

Thanks for the reply,

Looking at it more in depth, it would be almost impossible to overwrite the factory settings unknowingly. So I have to believe Sony intended techs to be able to easily reset, and I agree with you it’s good to have a “base” set of settings to always be able to work from. For what it’s worth both the L2 and M2 models I have appear safe to reset.

For anyone curious about the Factory Standard reset, I’m fairly sure I have it figured, (don’t quote me on this!) it actually resets all the non-service menu items, that are available to in the regular user menu, like which Sync or which of the three preset colour temperatures - or user set colour temperature- to use. Essentially, it seems harmless.

[Dochartaigh]

For anyone curious about the Factory Standard reset, I’m fairly sure I have it figured, (don’t quote me on this!) it actually resets all the non-service menu items, that are available to in the regular user menu, like which Sync or which of the three preset colour temperatures - or user set colour temperature- to use. Essentially, it seems harmless.

If we're talking about the same thing, I've found the opposite. Factory reset (through the service menu) has always reset all of the service menu items - or in particular at least, I know for a fact geometry (which is the one that I WANT it to reset!). If my memory serves color type things, like doing bias/gain for color accuracy / white balance type stuff might not be reset, but I would have to double check that as it's been a while (and I mostly use BVM's now, not PVM's). Which input you're on, if it's RGB or Component, int/ext sync I think do go back to default, but those are like 5 seconds to change back through the regular non-service menu.