Tate issue - PVM 2030

[noonan2678]

Guys,

I had gotten a 2030 super cheap locally and it was like brand new. Amazing condition and didn't even look like it had been used much at all. I got the correct cable for it and tested a few consoles. Looked great and was so happy with it. I set it aside to sit next to my other screens in tate mode, once I got to building out that setup.

I just moved it over today with my MIMO and 360 and set it up on its side with the power switch on top. Fired it up and the colors were a mess. Tried other sources, same thing. I know that the cable to the monitor is good as well since it was fine during all initial testing. I flipped it back to normal and now the whole screen is a mess color-wise where it was fine all the prior times I turned it on and before moving it. Purples, dull, etc. Flipped it to the opposite side for tate and it's the best although the corners are still purple. When I hit the screen on its side, it has a slight effect on the image. I was SUPER careful moving it around. The only other thing I had to do was remove the official Sony speakers from it as they were initially included and also worked great.

Did I just F up my monitor? I'm so aggravated right now. This is a long story short and while there's a tiny, tiny possibility that it's the cable to the monitor, it was tested perfectly fine, I haven't touched it since and messing with the cable on either end produces absolutely nothing. It's the only other variable other than the monitor itself. I'm really hoping there's a quick fix here. I have not opened it up at all, but again, it's in flawless condition. Still has the Sony Style sticker on the side in mint condition too. I know that doesn't tell the whole story...

I really appreciate any help on this. So defeating getting this close and seemingly causing a huge issue.

[Xyga]

Pics ?

Normally before rotating a crt you're supposed to turn it off, rotate, wait a few minutes (10 maybe?), then turn it on.
(I had one that even required to be unplugged instead of just off)

Or is it bad degauss ? I've never owned a PVM myself but most CRTs should have a built-in degaussing circuit (triggered the same time you turn it on) to avoid these magnetic de-alignment situations or whatever they're called...

[KevinDDR]

Push the degauss button on the back. You might have to do it once or twice if it's anything like the 2530 because the button is kind of strange and the coil can get locked on. Boom, problem solved. If it didn't really help, either your degauss coil is bad (or fell off somehow; this is possible and fixable) or the monitor has taken a serious slam and the aperture grill has become dislodged in a horrible way (not fixable, but I think you would somehow know if this had happened).

[noonan2678]

Thanks... I should have mentioned that I did try the degauss button several times. It definitely did not seem to engage the way I would expect it too. Would this make sense given the fact that the monitor has varied results based on the orientation? If the coil were dislodged, what would I be looking for?

I did have to unplug and move it, but I didn't wait any specific period of time. I'll try it again later today. I did go to take pics to post, but they weren't showing the issue very well. I'll try that again too and update the thread once I'm back in front of it.

Thanks again.

EDIT - re: the possible aperture grill issue, what would that look like? I turned it on this morning and the degauss definitely engaged. Problem was still there, but admittedly, not as bad. I ordered a degauss coil to see if that's the issue. I put it back in normal orientation, unplugged it, and will try again when I'm back from the office later today.

[andy251203]

Did the colors look OK before you rotated it? If so, you'll probably just need to buy a good degausser and manually degauss the monitor once you rotate it. These monitors are not designed to be turned on their sides normally, so sometimes the built-in degausser is not strong enough to correct the colors.

[noonan2678]

Yes, they looked generally great. I ordered this one earlier this morning:

https://www.amazon.com/Waldom-Degaussin ... gauss+coil

The image had some shimmer to it as well and I could see some faint lines of interference, but that may be just tweaking the MIMO, UMSA, and Xbox 360. I was expecting it all to be very crisp. I also noticed that the MIMO seemed to want to output 640x360 to the monitor. I manually adjusted to 240, but it was vertically stretched like crazy. Maybe that's another topic though.

[andy251203]

Yeah, that's the degausser that I use. Fry's used to sell them for $40 many years ago.

[noonan2678]

Got the degausser. Used it as directed and as I remember from years ago. It absolutely impacts the problem area when on, so seems like it is a magnetization problem.
It does not fix the issue, however. I tried just spinning the monitor, while still turned on its side, and that actually fixes it. Problem is that it's only okay
when facing the wall and re-configuring my space isn't really an option.

Since it seems like earth ground has locked this thing where it is, are there any other solutions? It wasn't as bad on its other side, so I'll go back and try that after the
coil cools down for a while.

EDIT - Side note, is there a service menu for the 2030? The standard Sony, display, 5, vol up doesn't work and it seems like there isn't even an on-screen menu at all
beyond the buttons in configuration mode.

[kamiboy]

That series of monitors were made in the 80's, so no service menu. Also, the monitor has no built in speakers, you will need to hook some up to it using the terminals on the back, it only has a built in speaker amp which is what the volume controls are for.

I believe magnitization such as this will dissipate with time. But your problem is very odd, maybe something broke off on the inside of the TV when you flipped it.

[noonan2678]

If something broke off, would spinning it as I did fix it though? I thought that pointed to an earth ground problem, effecting the screen over time.

What would I look for when opening it up?

[kamiboy]

No idea. All I know that as far as I remember every single time a CRT user came to these forums with similar problem the first thing everyone suggest is getting a degaussing wand, and it never seems to work.

Your problem is rather bizarre, flipping a CRT shouldn't cause an effect that lasts this long.

[noonan2678]

Here's a link demonstrating the issue. Note that I'm only turning it about 90 degrees.
I've used the degaussing coil several times. It absolutely corrects it while in the process
but it just doesn't stick.

Next step is to open it up I guess. My whole room has been waiting for this so there's
really nowhere else I can place this setup.

https://youtu.be/k4lFlmFAais

[noonan2678]

I get this is an unusual one and appreciate anyone that can offer some insight. If not, does anyone know of a resource or other forum that might?

Thanks again.

[kamiboy]

Your best bet is to pop off the back and see whether anything seems off. Perhaps something came loose during the flipping.

[noonan2678]

Pulled the back off last night. Nothing looks off at all. It looks shiny clean and everything looks in place.

I found some of the geometry pots, but mostly just for H/V size and position. The display, even when sitting upright, has some bad geometry in the corners and I can't find any pots to effect it.
Before flipping this, I recall it being fine, or at least, significantly better. I tightened any screws that I found and did a general check to be sure nothing was loose.

I just don't know where to go with it now.

[viletim]

noonan2678,

This used to happen to me sometimes when I tate'd TVs and computer monitors. Does it look OK if you turn it 180 degrees from the good position?