[Elecraft] K2 LCD Backlight Diffuser

[Don Wilhelm]

Murray,

Those diffuser leads should just touch the top of the board since 2 
spacers are 1/8 inch and the leads are also 1/8 inch.  Solder them from 
the top of the board - being careful so the iron does not touch anything 
but the leads and the solder pads.

If the leads do not touch the solder pads, sand down a spacer so that it 
does just touch.  If there are rough spots on the spacers, sand them off.

73,
Don W3FPR

On 7/12/2020 1:02 PM, zk2boy wrote:
> I am just getting around to building my K2 that I purchased in 2008. 
> I've been busy. But I'm having fun now!
> 
> I have  the K2 Owner's Manual Revision G, May 29, 2007. I also have 
> Errata sheet Rev. G-1, Dec. 12, 2007.
> 
> In the Front Panel section, page 27, the original instruction advises to 
> use two spacers at each end when installing the LCD backlight diffuser 
> to keep the diffuser exactly 1/8" above the PC board. The Errata sheet 
> clarifies to use the spacers but remove them after soldering the 
> diffuser into place.
> 
> The issue is that the two spacers are 1/8" thick. The diffuser leads are 
> exactly 1/8" long. This means with the spacers in place, the diffuser 
> leads don't actually reach the solder holes. The lead ends are suspended 
> just above the holes. If I actually manage to line everything up and use 
> rubber bands to hold all in place while I solder (good luck!), the 
> solder would need to bridge up to the ends of the diffuser leads for the 
> soldered connections to hold. This doesn't seem like a good practice.
> 
> Is there a newer errata sheet? Or am I not understanding this correctly?
> 
> Murray
> VA1CQ
> 
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