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View Full Version : What the heck is a floppy interface doin on a TV??


Zim2411
10-25-03, 06:23 PM
http://home.comcast.net/~zim2411/inputs.jpg
A floppy drive cable fits in that RGB Multi Input...

The monitor was made in 1986. It's an NEC CM-1991A.

Does any one know how I can use that RGB Multi Input? Or maybe that VTR input? Right now I'm using the composite input.

Note: This is a monitor, NOT a TV. It just looks alot like a TV from the front, but it doesn't have a TV Tuner.

OCed_5150
10-25-03, 11:20 PM
Interesting... never seen that before.

What I dug up is from a Sony KV-25XBR TV... might do the same thing as your NEC. It's used for audio and video.

http://www.hardwarebook.net/connector/av/sonyrgbmulti.html

VTR might be for used with cameras and reel to reel video tape recorders.

Im not an expert on what those connectors do.

SpaceyWilly
10-26-03, 03:39 PM
shot in the dark, but maybe you could hook up a floppy drive and view bmp images on it, like the tv's that support sony's memory sticsk.

Aslan
10-26-03, 05:23 PM
I have never seen this connector before either, but I agree with OCed_5150 in that it's very similar to the Sony KV-25XBR and IMO it's probably the exact same thing.

In terms of it's use, after searching for it, the only thing that I found is that a floppy cable can be modded, and used with the monitor and an Amiga (http://www.inwap.com/inwap/chez/CompJoe.html) 1200 (http://www.inwap.com/inwap/chez/kv25xbr.txt).

I wouldn't risk using it with a floppy disk drive as judging from the pinout charts, it would either do nothing, or damage the monitor itself.

SpaceyWilly
10-26-03, 06:21 PM
yeah I dont know how you'd get power to it either

man_utd
10-26-03, 10:51 PM
I have a old ass sony trinitron with that input. Below it says analog, and under a SCART (RGB) it says Digital. No idea as to what it does though.

Zim2411
10-27-03, 09:55 PM
So if i spliced a VGA capble and a floppy drive cable together with the corresponding wires and stuff, would it work?

Edit: Using this (http://www.lysator.liu.se/amiga/hard/guide/A4000Hardware.guide?VGA%20Monitor%20Pin-Outs)

I can figure out that the VGA Pins 1, 2, and 3 corospond to 25, 26, 27.
6, 7 and 8 go with 8, 9, and 10.
13, and 14 go with 31 and 30.
4, 10 and 11 could go with 4, 11, or 16.

Would that work?

But then again, there are a bunch of pins on the floppy one that aren't in the VGA one. Like the +5V power supply, Audio, audio grounding, v/h sync return ground, RGB/Normal mode select, audio select, composite video output (!) mode select, remote control ground, and blanking input return ground.

Whoa.

Despite all those missing pins and stuff, do you think it would work?

Zim2411
12-26-03, 11:18 AM
I CAST LEVEL THREE THREAD RESSURECTION!!!!!!!!

Edit: If anyone still cares, I emailed my uncle and got this response.

uh... no!

the rgb standard has a maximum resolution and scan rate that is far below the resolution capabilities of VGA. rgb was at one time also known as cga. a max resolution of 320x240 or maybe 400x300 (can't quite remember), anyway, if you send a true vga signal (640x480 at greater than 256 colords ) with a reasonable scan rate, the older cga/rgb monitor may actually FRY!!!!!! (this is not a drill i did it once!!!)