Emax

If the Emax can't communicate properly with the display it will hang.

I replaced mine with direct Replacement EL backlght. So I didn't have to modify the power circuit.
Even then, I had to add a pot to be able to see the screen, as Jammie indicated.
Every mfr might be different for the pot value.
Mine required 20K, but some require 5k or 10k.

As Jammie said, the mfr spec (usually available in a pdf) must always be consulted prior to hookup.
I don't know what the end effect is of hooking an LED to the EL power circuit. 


You can send me the display panel and logic boards and I can take a look at it.

My address is:

Ted Summers
5206 F Street
Springfield, OR 97478

Be advised I will be unavailable during most of April, so send it quick, or wait til May.

Regards,
Ted


On Mar 26, 2011, at 3:28 PM, mlivingston8 wrote:

I'm located in the states, Atlanta GA, if anyone is willing to fix my LED board.

--- In emax@yahoogroups.com, "mlivingston8" <mlivingston8@...> wrote:
>
> It's just that for a novice like me, though good at soldering, I have to rely on the info that was posted here which is a little disjointed. There's no other info online elsewhere on this procedure and I'm not a tech to figure the rest out.
> 
> I'd be willing to pay someone to fix it, I just hope nothing else was burned up in the process because now the front panel buttons are not responsive. LEDs light up when turned on but nothing happens when I press a function button. Overall, I'm really a bit frustrated so my apologies if I come off a little crass.
> 
> --- In emax@yahoogroups.com, "jammie" <jammie.emma@> wrote:
> >
> > fit a led display as it will blow if you connected it to the ac supply
> > 
> > also as i said you need to disconent pin 3 by cutting the trac and connecting a pot between vcc and ground and the wiper to pin 3 as they use a positive angle whetach {
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> > > I've replaced the header pins 1-14 to the new display but I'm confused on where to solder the A and K pins on the new display. I see the ground and +5 on the Emax LED board but the spacing on the new display seems a bit wider than the original. Do I have to solder the pins on the new display and bend them to fit the Emax board?
> > > 
> > > --- In emax@yahoogroups.com, "jammie" <jammie.emma@> wrote:
> > > >
> > > > on the rack you would still need the pot as the angle on the rack is a negitive veiw angle voltage
> > > > ----- Original Message ----- 
> > > > From: Jason Mc 
> > > > To: emax@yahoogroups.com 
> > > > Sent: Wednesday, March 16, 2011 12:05 AM
> > > > Subject: [emax] Re: LCD replacement from RS
> > > > 
> > > > 
> > > > 
> > > > Sorry about the last post gave the wrong part number, this is exact part I used.
> > > > 
> > > > I have recently replaced my el foil display with this one:
> > > > 
> > > > Mouser Part #: 763-NHD-0216EZ-FLYBW
> > > > Manufacturer Part #: NHD-0216EZ-FL-YBW
> > > > Manufacturer: Newhaven Display
> > > > Description:LCD Character Display Modules STN- Y/G Transfl 85.0 x 36.0t
> > > > 
> > > > http://www.mouser.com/ProductDetail/Newhaven-Display/NHD-0216EZ-FL-YBW/?qs=sGAEpiMZZMt7dcPGmvnkBq9RSAvEJGmRKdDSboNhMSQ%3d
> > > > 
> > > > $11.35 US
> > > > 
> > > > 1) De-soldered the old header pins from the original display, soldered
> > > > them into new display.
> > > > 2) Removed the old EL-Foil Driver (black box)
> > > > 3) Used router and file on case to accommodate new display thickness
> > > > 4) De-solder surface mount resistor R7, Solder resistor in R8
> > > > location. This supply's the +5v for LED Backlight
> > > > 5) Header pins 1-14 need to be in place along with pin K (LED ground)
> > > > 
> > > > Nice new low power LED BackLight display, great contrast no need for
> > > > added potentiometer.
> > > > 
> > > > [Non-text portions of this message have been removed]
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > ----------------------------------------------------------
> > > > 
> > > > 
> > > > 
> > > > No virus found in this incoming message.
> > > > Checked by AVG - www.avg.com 
> > > > Version: 8.5.449 / Virus Database: 271.1.1/3508 - Release Date: 03/15/11 07:34:00
> > > > 
> > > > 
> > > > [Non-text portions of this message have been removed]
> > > >
> > >
> > 
> > 
> > 
> > 
> > 
> > 
> > ----------------------------------------------------------
> > 
> > 
> > 
> > No virus found in this incoming message.
> > Checked by AVG - www.avg.com 
> > Version: 8.5.449 / Virus Database: 271.1.1/3530 - Release Date: 03/26/11 07:34:00
> > 
> > 
> > [Non-text portions of this message have been removed]
> >
>





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