I've just acquired an old 20" Tatung (cm2000) which has 4 BNC connections, marked CS, R, G(Sync), B - and also a separate 9-pin connector. There is a switch marked 1.0 or 0.7 volts BNC Input, another switch marked Colour 8, 16, 32, 64 and a further switch marked Manual on/off. The only cable I have is a 5BNC to 15-pin PC connector. My video adapter is a PCI S3 Trio 32/64 (2 meg). Connecting the RBG BNCs doesn't work. Connecting the HSync BNC to the CS connector gives a good picture which rapidly "revolves" vertically. I presumed I need a 4 BNC to 15-pin cable - but for some reason there doesn't seem to be any on sale anywhere on the Net?

What is the 1.0, 0.7 volt switch for?

What is the Manual switch for?

Also - what's the difference between a NEC & a Sony 9-pin to 15-pin cable?

What is the Tatung likely to be?

Thanx in advance for any info.

Newton's Cat


[This message has been edited by newton's cat (edited 12-09-2001).]

Not sure i can help you here, had to dig in the old brain attic to remember the last time i fooled with an old CGA monitor.

As i recall the old monitors were digital with a 9 pin connector-unlike our 15 pin analog crt's today ( odd that we've returned to digital with the LCD's , isn't it ).

However i don't recall if i ever had one that had BNC's ( british naval connectors? ) on it. Are you talking about the same BNC type connectors like there is on old thinnet network cards? looks like your cable TV connector?

If so i would presume each one was for a diferent color ( red/green/blue) and one for the modulation signal itself.

Maybe Pete or someone else here might have a link to something that could help you-honestly i 'll have to say i'm stumped on this one. http://www.PCGuide.com/ubb/eek.gif

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iisbob
""I was gratified to be able to answer promptly, and I did. I said I didn't know."
Mark Twain

Check this MonitorWorld (http://www.monitorworld.com/Cables/hd15male_to_5bncmale.html) link. They also have a link to a supplier on that page.

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Friends don't let friends install Windows ME

This is a 1280x1024 non interlaced monitor odten used for CAD
i am using one now ,im running XP Pro service pack 2 , if you want to know the settings post an enquiry

During my first foray into super large CAD CRTs with BNC connectors, a 21" back around 1994, I found that most of them were fixed frequency. That won't bother most people, because 1280x1024 is a fine resolution, but they didn't work at other settings. Not sure if this has changed in recent years, but it's something to be aware of.

*edit*
Now that I think about it, I guess you also wouldn't be able to bring a computer up through the install process with one of these monitors. XP only offers 800x600 and 1024x768 initially, so you couldn't modify the settings and install the proper drivers. If that type of monitor still works the same way, make sure you've got a junker multifrequency display laying around for emergencies.
*edit*

This monitor is not fixed frequency and supports a wide range, , i am running one now at 1024 by 768 , you do not need a special driver use the one with you video card
here is a link http://www.tatung.co.uk/serviced/monitor.asp
it will run in 800 by 600 , it boots ok