Emax

Hi again Mike,

(My God what time is it in Melbourne?)
Thanks for your support. Yes, I guess it wouldn't be that difficult  
for anyone with a bit more electronics experience.
I did actually manage to successfully track down and fit a power  
supply and I was quite proud of my handiwork. That's what really irks  
me about buggering up this solder job. If only mine had pop-in/out  
connectors!

Cheers,
Alan

On 12 Feb 2008, at 8:43AM, Roland S-50 wrote:

> Hi Alan,
>
> Strange... Everything on my button board (including all the LEDs)  
> are fitted
> to 'pop-in/out' connectors, which I guess makes things easier!
>
> Pity you are so far away from me, as I'd help you out (I'm in  
> Melbourne,
> Australia!). The button board wouldn't be a dead-loss, since it's  
> only a
> single-layer board, so any damaged tracks could be patched up  
> pretty easily.
>
> As for the PSU, I think (someone correct me if I'm wrong) it  
> produces fairly
> standard voltages and I've even heard of PC power supplies being  
> hacked
> about and used instead...
>
> If I had the schematics (does anyone have the PDFs?) I'd be able to  
> comment
> a bit more on the PSU...
>
> Cheers,
>
> Mike.
>
> On 12/02/2008, Alan Currall <alan@...> wrote:
> >
> > Mike, Yeah it was soldered, and quite a fiddly bit for a novice like
> > me to tackle. My Emax's life now rests on finding someone skillful
> > enough to make good my handy work. As I couldn't even find anyone to
> > to replace to power supply recently, I fear the worst. Anybody out
> > there got a dead Emax I (rack) with a good button board?
> >
> > Cheers,
> > Alan
> >
> > On 12 Feb 2008, at 3:52AM, Mike wrote:
> >
> > > Hi Alan,
> > >
> > > Just curious: why are you soldering on the button-board?
> > >
> > > On my Emax, the LCD assembly comes out (the 14 pin header  
> simply plugs
> > > into the connector on the button-board)
> > >
> > > Is it soldered in-place on yours?
> > >
> > > cheers,
> > >
> > > Mike.
> > >
> > > --- In emax@yahoogroups.com <emax%40yahoogroups.com>, Alan Currall
> > <alan@...> wrote:
> > > >
> > > > Oh shit!
> > > >
> > > > My soldering skills are even less developed than I had feared...
> > > >
> > > > I've made a right hash of the back of the button board that  
> hosts
> > > the
> > > > LCD module. Patches of scorched board and smears of useless  
> solder
> > > > now litter the area where the 14 pins come through. I'm  
> worried that
> > > > I may even have breached the integrity of on or two of the  
> tracks.
> > > >
> > > > I guess this is what comes of impatiently trying to do a job
> > > > inadequately equipped. Just out of (probably purely academic  
> by now)
> > > > interest what size soldering iron tip should I have attempted  
> this
> > > > butchery with? Also are there any recognised techniques for  
> cleaning
> > > > up a mess looking piece of board? With any luck it may just look
> > > > worse than it actually is.
> > > >
> > > > Forlornly,
> > > > Alan
> > > >
> > > > On 10 Feb 2008, at 10:00PM, mr julian wrote:
> > > >
> > > > > from the OP's datasheet, pins 15 and 16 are for an LED
> > > backlight......
> > > > >
> > > > > so, yeah.. it's an LED backlight. No need for the backlight
> > > inverter
> > > > > module anymore. pull it out, too!
> > > > >
> > > > > Just wire 5V through a resistor (start with 6R8, assuming  
> the LED
> > > > > load/current requirements are right in the datasheet) 1/2W
> > > resistor
> > > > > from
> > > > > to the "A" connection of the backlight, and wire the "K"
> > > connection to
> > > > > ground.
> > > > > The Emax shouldn't worry about another 120mA, on 5V, I  
> imagine....
> > > > > (not
> > > > > that I've ever tried, though!)
> > > > >
> > > > > The LED backlight power is a pretty simple thing - has anyone
> > > checked
> > > > > the data/control pins are in the right order on the old and  
> the
> > > new
> > > > > module??
> > > > >
> > > > > ted Summers wrote:
> > > > >
> > > > > >Alan-
> > > > > >
> > > > > >The LCD must be soldered. I don't know if the system checks
> > > whether
> > > > > >the LCD is displaying or not.
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > > >
> > > >
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > >
> > >
> > >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
>
> [Non-text portions of this message have been removed]
>
>
> 



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