Kvopper256 wrote on 2024-10-23, 21:22:

Also, I scraped the CRT while disassembling the PCB. Can that interfere with it's operation?

This is a conductive coating, scratches on it do not affect the operation. But this coating must be grounded with a spring wire.
You already have the manual and the electrical diagram. And if you have a tester and an oscilloscope, then repairing the monitor can become a simple and enjoyable task.

Postman5 wrote on 2024-10-24, 08:54:

This is a conductive coating, scratches on it do not affect the operation. But this coating must be grounded with a spring wire.

Is it the wire that I unplugged from the CRT Cocket PCB while disassembling it? I didn't unplug anything unrelated to the CRT Socket PCB.

Postman5 wrote on 2024-10-24, 08:54:

You already have the manual and the electrical diagram. And if you have a tester and an oscilloscope, then repairing the monitor can become a simple and enjoyable task.

I don't have an oscilloscope but I do have a digital multimeter.

Is it the wire that I unplugged from the CRT Cocket PCB while disassembling it? I didn't unplug anything unrelated to the CRT Socket PCB.

It is also connected to the neckboard, yes. Here's a picture from my monitor (a Samsung Syncmaster 750p).
You can see the spring wire mounted tightly onto the CRT. The black conductive coating is the aquadag (there's also coating inside the tube, which makes it work like a giant capacitor). There are 3 brown wires that connect the spring wire to the metal frame of the main PCB (the two short ones), and the neckboard (the long one).
Your monitor should be similar.

Kvopper256 wrote on 2024-10-24, 09:36:

I don't have an oscilloscope but I do have a digital multimeter.

Repairing a monitor without an oscilloscope is like chasing ghosts

Kalle wrote on 2024-10-24, 09:59:

It is also connected to the neckboard, yes. Here's a picture from my monitor (a Samsung Syncmaster 750p). You can see the spring […]
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Is it the wire that I unplugged from the CRT Cocket PCB while disassembling it? I didn't unplug anything unrelated to the CRT Socket PCB.

It is also connected to the neckboard, yes. Here's a picture from my monitor (a Samsung Syncmaster 750p).
You can see the spring wire mounted tightly onto the CRT. The black conductive coating is the aquadag (there's also coating inside the tube, which makes it work like a giant capacitor). There are 3 brown wires that connect the spring wire to the metal frame of the main PCB (the two short ones), and the neckboard (the long one).
Your monitor should be similar.

I didn't touch the spring wire at all except for the long one, which is black on my monitor. In fact, I didn't remove the main PCB. Is the scratched coating not going to affect the operation of the tube?

Kvopper256 wrote on 2024-10-24, 10:52:

Is the scratched coating not going to affect the operation of the tube?

no, it won't affect

Kvopper256 wrote on 2024-10-23, 21:22:

So I managed to open it and everything seems fine apart from the nasty dark dust and the 16V 100uF cap's foil feeling damaged to touch (I inspected the part of the board obscured in the image).

Electrolytic capacitor list: 1x 16V 1000uF "funny three-pronged circle logo SHL" brand SAM YOUNG (M) 85°C 2B E(1); 1x 16V 470uF same brand as previous (M)85°C; 1x 50V 4,7uF same logo as previous but "SMS" near it (M)85°C; 1x 50V 1uF "funnier circly logo" brand SG 85°C(M) P9J; 2x 160V 1uF same brand as previous RG 105°C (M) P9A; 1x same as previous but "RD" instead of "RG"; 1x 100V 47uF "less funny logo with 3 pronged circle" KME brand 26 J(I) SAM YOUNG (M) 105°C; 1x 16V 220uF same brand as first cap in the list SAM YOUNG (M)85°C 20 L(1).

I found replacements for Samyoungs but couldn't find the other brand.
1x 16V 1000uF; 1x 16V 470uF; 1x 50V 4,7uF; 1x 160V 47uF; 1x 16V 220uF.