emulatorII-list

In an attempt to be different, I tried to use White EL foil for the
new backlight in my SP-12 (std Optrex part) and absolutely nothing
happened.
I took the stuff outside and plugged into a different inverter and
connected to the cigarette on my car and it glowed a brilliant white
so I know the problem had to be something with the E-mu inverter. I
don't think the E-mu part is failed. I don't know why the white colour
wouldn't work as opposed to the blue, I just thought I would let
everyone know not to try this. [w]

--- In emulatorII-list@yahoogroups.com, "][" <ingsoc_1979@...> wrote:
>
> In an attempt to be different, I tried to use White EL foil for the
> new backlight in my SP-12 (std Optrex part) and absolutely nothing
> happened.
> I took the stuff outside and plugged into a different inverter and
> connected to the cigarette on my car and it glowed a brilliant 
white
> so I know the problem had to be something with the E-mu inverter. I
> don't think the E-mu part is failed. I don't know why the white 
colour
> wouldn't work as opposed to the blue, I just thought I would let
> everyone know not to try this. [w]
>


Re: I bet I know this one.   After you unsolder and remove old foil 
it is necessary to insulate or cover the tabs that old foil 
connected to, use a thin strip of electrical tape.  Slide new foil 
in and solder inverter leads directly to new foil.  I tried the 
white but the blue is easier to read for these aging eyes.  Let me 
know if that works,  Doug

Thanks for chiming in but I'm not sure I follow you.
Are you saying that you got the white to work? Are
there any pictures of what you're describing? [w]

> Re: I bet I know this one.   After you unsolder and
> remove old foil 
> it is necessary to insulate or cover the tabs that
> old foil 
> connected to, use a thin strip of electrical tape. 
> Slide new foil 
> in and solder inverter leads directly to new foil. 
 



       
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--- In emulatorII-list@yahoogroups.com, Wayne Griffin 
<ingsoc_1979@...> wrote:
>
> Thanks for chiming in but I'm not sure I follow you.
> Are you saying that you got the white to work? Are
> there any pictures of what you're describing? [w]
> 
> > Re: I bet I know this one.   After you unsolder and
> > remove old foil 
> > it is necessary to insulate or cover the tabs that
> > old foil 
> > connected to, use a thin strip of electrical tape. 
> > Slide new foil 
> > in and solder inverter leads directly to new foil. 
>  
> 
> 
>RE:   Hi Wayne,  Simply put, the color of foil is insignificant 
here as this in theory is merely an electrical component.  I had the 
same problem with the last Korg 01 as well as my EII. On the Korg, 
it is impossible to remove old foil so you slide new one in on top 
of it.  When you unsolder the two contacts where the old foil was 
connected and remove old foil from display, try to get as much 
solder off display contacts as possible with minimuim exposure to 
heat.  Then cover those two contacts on display with electrical 
tape. Slide new foil in place and take the wire from inverter and 
solder directly on to the contacts of new foil. That is, the 
inverter must connect to new foil and nothing else. Again I used 
thin piece of electrical tape to cover the area where new contacts 
joined foil.  Your inverter should be putting out around 100v with 
no load.  Just remember to limit your time solder gun is exposed to 
display board and foil, no more than 2 seconds as heat travels 
quickly and you could fry your display as well as ruining foil.  
Cooltronix recommends laminating display.  I used clear package tape 
on both sides and worked fine.  Key here is new foil must be 
insulated from display board  in order to work properly, look at 
your old foil that you removed.   
I am sure the person with the problem would try this their display 
would work properly, given the inverter is working.    Doug      
>

> I am sure the person with the problem would try this
> their display 
> would work properly, given the inverter is working. 

Thanks for taking the time to reply to me in detail. I
guess my inverter must not be working. I constructed
and connected my EL exactly the way that you described
(laminated / directly connected) I suppose my inverter
is dying. I wasn't aware that you could test inv's
with no load, I thought it was bad for them- no? [w]


       
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--- In emulatorII-list@yahoogroups.com, Wayne Griffin 
<ingsoc_1979@...> wrote:
>
>
> 
> Thanks for taking the time to reply to me in detail. I
> guess my inverter must not be working. I constructed
> and connected my EL exactly the way that you described
> (laminated / directly connected) I suppose my inverter
> is dying. I wasn't aware that you could test inv's
> with no load, I thought it was bad for them- no? [w]
> 
> 
>        
>Re:  Try TELESIS or DigiKey as I believe they sell inverters but 
you will have to improvise wiring as it will not fit into pc board 
taps.  Just silicon seal to board where old one was and run wires 
from board to new inverter. Check your schematics for inverter in 
voltage.  Doug  
_____________________________________________________________________
_______________Yahoo! oneSearch: Finally, mobile search 
> that gives answers, not web links. 
> http://mobile.yahoo.com/mobileweb/onesearch?refer=1ONXIC
>

Just wanted to follow up about the White EL foil.

I did, in fact, have a faulty inverter. I had another
one laying around and now and the glow is great,
although it looks quite blue when connected to the
stock E-mu inverter. Reads 89V AC, don't have a scope
so not sure about frequency. cheers, [w]


--- Doug Berg <caddyfam@...> wrote:

> --- In emulatorII-list@yahoogroups.com, Wayne
> Griffin 
> <ingsoc_1979@...> wrote:
> >
> >
> > 
> > Thanks for taking the time to reply to me in
> detail. I
> > guess my inverter must not be working. I
> constructed
> > and connected my EL exactly the way that you
> described
> > (laminated / directly connected) I suppose my
> inverter
> > is dying. I wasn't aware that you could test inv's
> > with no load, I thought it was bad for them- no?
> [w]
> > 
> > 
> >        
> >Re:  Try TELESIS or DigiKey as I believe they sell
> inverters but 
> you will have to improvise wiring as it will not fit
> into pc board 
> taps.  Just silicon seal to board where old one was
> and run wires 
> from board to new inverter. Check your schematics
> for inverter in 
> voltage.  Doug  
>
_____________________________________________________________________
> _______________Yahoo! oneSearch: Finally, mobile
> search 
> > that gives answers, not web links. 
> >
>
http://mobile.yahoo.com/mobileweb/onesearch?refer=1ONXIC
> >
> 
> 
> 



       
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------- Original Message -------
From    : Wayne Griffin[mailto:ingsoc_1979@...]
Sent    : 5/18/2007 10:18:37 AM
To      : emulatorII-list@yahoogroups.com
Cc      : 
Subject : RE: Re: [emulatorII-list] Re: White EL foil ( LCD backlight )

 Just wanted to follow up about the White EL foil.

I did, in fact, have a faulty inverter. I had another
one laying around and now and the glow is great,
although it looks quite blue when connected to the
stock E-mu inverter. Reads 89V AC, don't have a scope
so not sure about frequency. cheers, [w]


Very good!  Blue is normal for EII display, polarized glass covering display, etc.
Voltage is acceptable, not a hi-tech component,  if display were to hum at different 
frequencies and display light "bursts" would be too high voltage, if light were to 
oscillate from almost normal viewing to somewhat dimmer, too low current.  In other words 
if it lights, its working, dont mess with what aint broke.  Cheers! Doug   PS If you look 
at my pic in PHOTOS with new backlight, you can see one switch missing, the STOP switch, 
got a few from DigiKey, just haven't been motivated yet.  Yeah Yeah, could have done it 
when I did backlight, just had too much else to do.