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Re: HMD wireing

Hi Jennifer

It is possible that the HMD requires dual supply, something
like +5v and +15v for example or maybe only +12v. 
Other wires could be used as a feedback loop from 
the wearable that activate the display upon signal presence.

For example I have a Xybernaut HMD (made by Kopin) 
and it has an Inverter Return pin that connects to the ground;
without it the display will not power up.

Isn't there a saying "Measure twice, cut the third time"?
Be careful when connecting the unit, check and doublecheck
the wiring and required power needs before actually turning
the power on, or it could permanently damage your unit.

good luck

-pedja

----- Original Message ----- 
From: "Jennifer Pellinen" <>
To: <>
Sent: Thursday, September 04, 2003 4:14 AM
Subject: Re: HMD wireing

> I found the info about the LCD on kopins website. so I
> will take a look at the PDF and see if that tells me
> what I want to know.
> 
> Jennifer
> 
> --- Jennifer Pellinen <>
> wrote:
> > Ok I have a slight dilema with my hacked HMD. The
> > problem I was having is that when you moved the
> > cable
> > the LCD would shut off or flicker. So right now the
> > power connector plug is cut off. I plan to get a new
> > plug at radio shack and see if I can fix it. What my
> > problem is, is that I don't know what the wires are
> > for. It has the following wires: black, red, orange,
> > green, blue and grey. its probobly safe to assume
> > the
> > black and red are the + and - voltage. What are the
> > other wires for? Because they all solder to the
> > power
> > connector one can assume they give power to
> > somthing.
> > The wires for the video signal and audio are
> > seperat.
> > so these wires are for power only. asside from + and
> > -
> > voltage what else is there? the HMD has a small
> > controll box that you controll brightness, contrast,
> > and volume with. the green and grey wires are
> > soldered
> > to the controll box circut board and come out the
> > side. the rest of them go right to the main diver
> > board the LCD's plug into. It origionaly had 2 LCD's
> > by the way. 
> > 
> > I hope I can get this damn thing working. 
> > 
> > Jennifer Ann Pellinen
> > 
> > PS can anyone point me to technical specs and what
> > not
> > on the kopin color LCD's(this what this HMD uses). I
> > haven't realy payed much attention to the emails
> > regarding kopin LCD's
> > 
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> 
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