View Full Version : Quadram MS1422 monitor , is there any info out there?

August 25th, 2017, 01:18 AM

anybody here has any info on this Quadram MS1422 multisync monitor?

http://i.imgur.com/gWuxtLHl.jpg (http://imgur.com/gWuxtLH)

http://i.imgur.com/kvw4xWdl.jpg (http://imgur.com/kvw4xWd)

http://i.imgur.com/0AgIBmNl.jpg (http://imgur.com/0AgIBmN)

http://i.imgur.com/zj1l6Tyl.jpg (http://imgur.com/zj1l6Ty)

Judging from the analog/ttl switch and the general setup of the input area at the back I am guessing it's an EIZO/NANAO rebranded monitor:

http://i.imgur.com/63cEUHPl.jpg (http://imgur.com/63cEUHP)

Is my assumption true? Most importantly is there a somewhere info about the input port pinout in TTL/Analog modes? What are the chances it's the same as the EIZO 8060S?

http://i.imgur.com/rQBBfxZm.jpg (http://imgur.com/rQBBfxZ)

TIA for any info/help! :D

August 25th, 2017, 03:08 AM
It seems to be the same as the original NEC Multisync, MODEL # : JC-1401P3A:

Pin Assignment IBM Graphics Adapter




Pin 1
* Red

Pin 2
Secondary Red
* Green

Pin 3
Primary Red
* Blue

Pin 4
Primary Green
Composite Sync

Pin 5
Primary Blue
Mode Control

Pin 6
Secondary Green/Intensity
Red Ground

Pin 7
No connection
Secondary Blue
Green Ground

Pin 8
Horizontal Sync
Horizontal Sync
Blue Ground

Pin 9
V Sync
Vertical Sync

August 25th, 2017, 03:22 AM
thanks for that!
is there a site where you grabbed this info? maybe there is extra bits about analog 15khz rgb video signals as well?

I believe I found the info, this .zip file: https://web.archive.org/web/20131207174317/http://www.welook4things.com/nec1401.zip

the pinouts in cable.htm are the same as the EIZO ones I posted above which is nice

August 25th, 2017, 03:52 AM
Yup, NEC1401 is my goto for the original NEC Multisync.

Kalo Tiki :-)

August 25th, 2017, 05:12 AM
^ euxaristo! (thanks)

August 25th, 2017, 05:36 AM
No translation necessary...katalaveno ta Ellinika.

August 25th, 2017, 05:50 AM
No translation necessary...katalaveno ta Ellinika.

panta ithela ena theio sthn Ameriki :p
Have a great evening mate!

August 25th, 2017, 07:12 AM
Mporis na me leis, Mparmpa Petro (Stone). :-) Stin Ellada, oi Ellenes me lene Petro.

September 7th, 2017, 02:17 AM
Allright Mparmpa-Petro back on topic :D

I received the monitor and it's working well. I don't know though what 2 switches do: PS2/MULTI and SCAN MODES AUTO/MANUAL:

http://i.imgur.com/KzGFfRgl.jpg (https://imgur.com/KzGFfRg)

http://i.imgur.com/J7bVSDPl.jpg (https://imgur.com/J7bVSDP)

What exactly is their use? Where do I need them? Any ideas?

In other news I can confirm that the input pinouts are the same as the EIZO 8060S ones I posted above, tested EGA/VGA/15khz analog rgb and all worked. It also accepts only c-sync or h+v sync , just like the EIZO (so you need a sync stripper if your sync source is luma or cvbs).

VGA works fine, even 70hz games are OK. The most annoying thing is the lack of a HORIZONTAL SIZE pot, in no input scenario that I tested one is able to fill the whole screen (maybe with an amiga and overscan settings in workbench, haven't tried that yet)

I could not determine the maker but the chassis setup is similar to the EIZO monitor, just without the extensive shielding :p

http://i.imgur.com/qMAZDCzl.jpg (https://imgur.com/qMAZDCz)

September 7th, 2017, 04:03 AM
I received the monitor and it's working well. I don't know though what 2 switches do: PS2/MULTI and SCAN MODES AUTO/MANUAL:

What exactly is their use? Where do I need them? Any ideas?

PS2/Multi corresponds with this on the NEC:

H. Width Switch: Adjust this switch for the horizontal size of the display. When this switch is ON, the width of the display size changes.

SCAN MODES AUTO/MANUAL corresponds with this:

Manual switch: This switch either selects IBM mode when OFF or the manual mode when ON. When this switch is OFF, the MultiSync monitor automatically works in the IBM mode and adjusts itself to the scanning frequency, resolution and color requirements of the IBM compatible graphics adapter being used. When this switch is on, the user must manually select the number of colors (8/16/64) need by the graphics adapter being used with the COLOR SWITCH (see number 3 below). Refer to instructions accompanying the graphics adapter being used for information on how many colors the adapter can display.

FWIW, I never use those two switches.

September 7th, 2017, 04:59 AM
Allright thanks for the explanation, I get what SCAN MODES switch does now :)

The PS2/MULTI one on the other hand is another beast... you say it changes Horizontal Size but on this monitor it changes Vertical Linearity? Size? I don't know how to explain it. Take for example Pinball Fantasies:

MULTI mode:
http://i.imgur.com/wA5Zk9el.jpg (https://imgur.com/wA5Zk9e)

PS/2 mode:
http://i.imgur.com/bRbO7hul.jpg (https://imgur.com/bRbO7hu)

If for example I use this switch in the command prompt with an EGA then the screen expands vertically with really fat scanlines ... I have not found any external control to actually change HORIZONTAL SIZE . EGA/VGA modes makes no difference , look at the left/right black bars:

http://i.imgur.com/S116Vypl.jpg (https://imgur.com/S116Vyp)

So in order to have correct aspect ratio I am forced to have a centered viewing area with bars all around - going from 14" to 11 or 12" at best :lol:

I also tested with a sega genesis, depending on the title it fills more screen area that what ega or vga does.
Maybe it's a monitor limitation, maybe one of the bazillion internal pots can fix this but it won't be optimal since 15k analog sources have it better... at least the quality is really nice - it's something :lol:

ps. come to think of it, the EIZO 8060S also has 3 settings for H.SIZE - none is perfect though for ega/vga as you still get bars left/right. Thinner from the Quadram but not an optimal condition, still a compromise.

September 7th, 2017, 05:30 AM
So in order to have correct aspect ratio I am forced to have a centered viewing area with bars all around - going from 14" to 11 or 12" at best :lol:That, my friend, is the essence of the multisync monitor's operation. I've been using NEC multisyncs for nearly 30 years and that's how they look in the various modes. But they're invaluable as it's the only monitor I really need on the bench which leaves lots of room to clutter up with other unnecessary crap! :-)

September 7th, 2017, 07:16 AM
^ allright! now we're talking, so they work like this. I agree about the space issue - it's why I got them in the first place. Thanks again for the clarification.
Now all we need is to make this in 14" size