Emax

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.
> >
> >
> >
>
> 



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