Star Wars Trilogy monitor death

bobbyb13

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Donor 4 years: 2020-2021, 2023-2024
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So the second monitor put in my SWT just died.
It is entirely possible that I have just had two in a row that were tired old chassis and simply succombed in an appropriate manner from a temporal standpoint.
Or maybe something is up with one of the boards causing this?
I can say that with some regularity the machine would cold/cold boot and run with audio and no image and then after cycling would show an image and then be fine.
I assumed that was a reset issue and the cycling overcame it.
I failed to look to see if there was neck glow in those previous instances though.
The last time I tried restarting twice and then still saw no image I pulled the back off and saw no neck glow.

Maybe it is time to send something to Ken?

Any wisdom from the gallery would be appreciated!

Bobby
 
Have you rebuilt the original sun power supply?

Don't think this would kill the monitor though.
 
Do you have a TPG you can hook to the monitor to verify? I know those have a weird pinout, but its doable.
 
What you are describing could be just a bad relay. That would explain everything working but the screen, and on power cycle, the screen comes back.
 
I'll need to look into that.
Man, I've been drowning in work, projects, chores, and now sick goats.
No time for fun for months now.
What you are describing could be just a bad relay. That would explain everything working but the screen, and on power cycle, the screen comes back.

The original monitor is a Nanao chassis I have yet to identify and that tube has a 100V sticker on it so I wonder what the power situation is.

I did go through the power supply once and wrecked one trying to rebuild it and then miraculously found a second working one.
Have you rebuilt the original sun power supply?

Don't think this would kill the monitor though.
I'll need to check for power IN to the chassis when I have a chance.
At least that should narrow it down a bit.
 
That could be your problem.

You might be feeding 120V to a 100V monitor

Unplug your AC connector and verify with your DMM
I'll need to look into that.
Man, I've been drowning in work, projects, chores, and now sick goats.
No time for fun for months now.


The original monitor is a Nanao chassis I have yet to identify and that tube has a 100V sticker on it so I wonder what the power situation is.

I did go through the power supply once and wrecked one trying to rebuild it and then miraculously found a second working one.

I'll need to check for power IN to the chassis when I have a chance.
At least that should narrow it down a bit.
 
It would actually be feeding 100V to a 120V monitor in this case.
Now I think of it I don't know if the supply to the monitor chassis is 100V or if it is 120V and the Nanao had a transformer on it.
 
It would actually be feeding 100V to a 120V monitor in this case.
Now I think of it I don't know if the supply to the monitor chassis is 100V or if it is 120V and the Nanao had a transformer on it.
Or you could have an isolation transformer in the circuit which fixes the problem.

The only way to know is to measure the power into the monitor.
 
I had a U5000 originally in mine. Worked great but had a nasty glass screen carving of someone's gang sign. I replaced it with a NOS WG2752 monitor and it looks fantastic.
 
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