Emax

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, 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]
>