MSV-U4 / 25 (TOEI TC-HV25LMK) - Flyback replacement?

Fixon · Feb 3, 2026

Hello!

I'm looking for a new flyback for a TOEI TC-HV25LMK chassie. Original flyback says Y261751 on it. Found one at https://www.hrdiemen.com/ but they said it was out of stock.
It's completely shorted inside and a tiny hole is arcing like a mofo to GND.

This monitor sits inside a MSV-U4 / 25 cab

So, maybe a long shot but does anyone have a spare or know another supplier of flybacks I could contact?

Or maybe replace the chassie for the tube? The monitor is a Toshiba A59JMZ90X with these yoke specs:
Lh = 0.46mH
Lv = 18.51 mH
Rh = 0.8 ohm
Rv = 9.4 ohm

Thanks!

PsychicJoTron · Feb 13, 2026

I don't have info about a replacement flyback, but for what it's worth 25" arcade monitors are fairly common in the US(if that's where you're located). I saw this posting on a different forum a couple of days back:

https://forums.arcade-museum.com/threads/25-inch-hantarex-monitor.560336/

Fixon · Feb 13, 2026

We mostly have 21” or 28” here in Europe. Otherwise I would swap it.

nem · Feb 13, 2026

25" (59cm) is common in Europe. Ask on Arkadtorget.

Fixon · Feb 14, 2026

nem said:
25" (59cm) is common in Europe. Ask on Arkadtorget.

Yeah, that is actually true in terms of arcade monitors, I was thinking consumer ones for some stupid reason. That would be the last resort. Replacing the entire tube.

Luckily, I found a replacement flyback from Technotronics Dimension:
https://technotronic-dimensions.3dcartstores.com/

Flyback was not listed on the website so send him an email asking for your specific flyback.

Hopefully that will solve the “issue” which was arcing. HOT was not shorted and diodes around flyback seems ok when measured.
Fingers crossed!

nem · Feb 14, 2026

It's a common size in televisions too. We didn't have 63cm (26") tubes really at all. It was 59cm and then 66cm.

Will Technotronic send parts outside the US?

Fixon · Feb 14, 2026

nem said:
It's a common size in televisions too. We didn't have 63cm (26") tubes really at all. It was 59cm and then 66cm.

Will Technotronic send parts outside the US?

Yes, they do! I’ve already made an order.

PsychicJoTron · Feb 14, 2026

Glad to hear you found one! I'd love to know how it all looks once you've installed it.

BuddyC · May 25, 2026

I have the same tube and chassi combo on my SNK MV25UP-0 and flyback just got fucked… Did the new flyback work @Fixon ?

MSV-U4 / 25 (TOEI TC-HV25LMK) - Flyback replacement?

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