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Makvision monitor I just got (Is it multi-sync?)

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greenegeek:
Hello All,
       I've tried my best to read all of the information available on this amazing forum. I've just got in a new Makvision monitor, but I wanted to make sure it was multi-sync before I take it out of the box. I've had a hard time finding information about the model on the internet. Below is a picture of the box (with the model number).

The model number is m3129DF-TS (I found one that is m3129DF-72, but I digress).

Anyone have any experience with that model number? Can anyone tell me for sure that it's multi-sync?

Also, anyone have any experience mounting one like the above?

Thanks in advance.

grantspain:
tri sync 15/24/31khz monitor auto switching
free voltage range 90-256vac
impedence switch on remote board changes video signal level 1v or 3v (1v for 31khz,3v for 15/24khz)
do not exceed 640x480 res or you will short the horizontal output transistor

set your pc to 640x480(or lower supported res) on another screen before connecting this chassis

DF means dual focus-you will have 2 focus pots on the flyback transformer

I would expect this monitor to be a pure flat screen?

greenegeek:

--- Quote from: grantspain on January 31, 2012, 05:10:35 pm ---tri sync 15/24/31khz monitor auto switching
free voltage range 90-256vac
impedence switch on remote board changes video signal level 1v or 3v (1v for 31khz,3v for 15/24khz)
do not exceed 640x480 res or you will short the horizontal output transistor

set your pc to 640x480(or lower supported res) on another screen before connecting this chassis

DF means dual focus-you will have 2 focus pots on the flyback transformer

I would expect this monitor to be a pure flat screen?

--- End quote ---

Yep, it's a pure flat screen CRT.

I'm a total newb when it comes to the electrical stuff. I was a little confused by the above (auto-switching, but also a manual impedance switch?) So if I'm using this monitor I'll have to reach around the back and hit the switch if I change khz? (Sorry if this is painfully obvious to others here)

As for the resolution, I took the advice of a review on Retroblast, and bought one of the ArcadeVGA cards, so I should be able to remove any resolutions higher than 640x480.

MonMotha:
The impedance switch has nothing to do with what resolution you run it at; it only has to be adjusted depending on the electrical characteristics of the device supplying the video.  If you're hooking it up directly a PC video source (including the ArcadeVGA), 75 ohms is always the correct setting regardless of resolution.  For arcade boards on the JAMMA edge, the "high" setting would be correct.

limner:
In which way do this monitor switch sync between 15k/25k/31k ?

if used with mame frontend, it changes automatically when a game is chosen?
in this case, do this switch "live" ruins the circuits or is it build for this purpose?

i found this same monitor as new and i would understand if this is ok for my mame project

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