----- Original Message -----
From: "Ted Summers" <djtbs1@...>
To: <emax@yahoogroups.com>
Sent: Wednesday, March 30, 2011 4:24 AM
Subject: Re: [emax] Re: LCD replacement from RS
> My understanding is that you are putting a resistor in line with 5v
> wherever you get that from to reduce it a little to decrease the
> brightness.
>
> I didn't have to do any of that as I got exact replacements, not LEDs.
>
> Thx,
> Ted
>
> On Mar 29, 2011, at 5:11 PM, mlivingston8 wrote:
>
> Yeah, I think that makes sense to me now. I'll have to take the emax LED
> board out and look at the traces again but I do think I remember that pin
> A was the hot trace from the emax board and K was the ground. So basically
> I break the trace and essentially "splice" a resistor in line to bring it
> down to +5v?
>
> Sorry, I'm slow! Going to try this one more time before send you the board
> in May.
>
> --- In emax@yahoogroups.com, Ted Summers <djtbs1@...> wrote:
>>
>> Pin A and K are the anode and cathode of the backlight.
>> The original EL backlight on Emax is not +5V.
>> To use an LED backlight, you break the connection of the A pin on the
>> display board and then connect the pad going into the display to +5V with
>> a
>> resistor in line to reduce the brightness (if my understanding is
>> correct).
>> The pot people talked about is added between a couple pins to change
>> reflective angle in the event you can't see the letters or they are
>> barely
>> visible.
>>
>> Hopefully that makes some sense.
>>
>> Regards,
>> Ted
>>
>>
>>
>>
>> On Tue, Mar 29, 2011 at 8:37 AM, mlivingston8 <mlivingston8@...>wrote:
>>
>> >
>> >
>> > Call me stupid but I still don't get this procedure. One person says
>> > add a
>> > resistor, the other says there is no need to. Nothing is working for me
>> > still. Jason, did you not have to add pin A? I took the pin A I had
>> > originally soldered in out again but now the Emax will not turn on at
>> > all.
>> > Maybe I burnt out that surfacemount resistor? At least with pin A in
>> > there I
>> > got power to everything. I'm about to throw this thing off a bridge.
>> >
>> > --- In emax@yahoogroups.com, Jason Mc <jasonmcdougal@> wrote:
>> > >
>> > > Hello All,
>> > > Have a look at http://groups.yahoo.com/group/emax/photos/album I just
>> > posted
>> > > pictures of the steps I took replacing my Emax Display.
>> > > I hope this helps!
>> > >
>> > > On Sun, Mar 27, 2011 at 1:24 PM, mlivingston8 <mlivingston8@>wrote:
>> > >
>> > > >
>> > > >
>> > > > Yeah, I soldered in the resistor to the other jumper on the board.
>> > > > Pin
>> > A I
>> > > > thought was implied because just moving that resistor still doesn't
>> > hook it
>> > > > up to anything. The pin still has to be soldered to the board to
>> > > > get
>> > power,
>> > > > just by looking at the traces on the board and following it to the
>> > > > emax
>> > > > board, that was my conclusion. The steps were a but confusing which
>> > > > is
>> > why
>> > > > I'm in this predicament as of now.
>> > > >
>> > > > Ted, thanks for offering your help. Just to clarify, what boards do
>> > > > I
>> > need
>> > > > to send you? The emax LED board and the replacement newhaven LED
>> > screen? Or
>> > > > do you need my emax digital board as well? I'll email you to talk
>> > > > compensation for your services. I hope I haven't FUBAR'd this emax
>> > because
>> > > > it's the last revision digital board with scsi already installed,
>> > > > so it
>> > is
>> > > > worth the trouble. I even fitted it with internal to external
>> > > > connector
>> > and
>> > > > have my zip drive ready to roll. Just no display :(
>> > > >
>> > > >
>> > > > --- In emax@yahoogroups.com, "dutchbeats" <dutchbeats@> wrote:
>> > > > >
>> > > > > he said to solder 1 - 14 and pin k which is the led ground. don't
>> > solder
>> > > > the led + because you already are getting power for the screen by
>> > switching
>> > > > the resister on the led board from r7 to r8. please tell me you
>> > soldered the
>> > > > led + and jason is right :/
>> >
>> > > > >
>> > > > >
>> > > > >
>> > > > >
>> > > > >
>> > > > > --- In emax@yahoogroups.com, "mlivingston8" <mlivingston8@>
>> > > > > wrote:
>> > > > > >
>> > > > > > 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.
>> > > > > > >
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>> > > > > > > ----------------------------------------------------------
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>> > > > > > >
>> > > > > > > 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
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> ------------------------------------
>
> Emax and Emax II User's Group Website
>
> http://www.silveriafamily.comYahoo! Groups Links
>
>
>
--------------------------------------------------------------------------------
No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.449 / Virus Database: 271.1.1/3537 - Release Date: 03/29/11
06:34:00