I would be interested for sure

 

I just made a post about the service, see infos, and pm me if you're interested!

 

Hey there
I've bought a ks108 compatible display ( linked above, reference : LCD-AG-128064H-DIW W/KK-E6 ) and soldered it today. I used a rotary potentiometer between pin 2 and 3, in order to find the right resistance... But I only have a full dark screen ( it's a black background screen)...
Maybe some of you had the same problem and found a fix ?
I'm not 100% sure if the 18th pin is totally 'disconnected' (I didnnt understand if the track to cut is on the screen board or on the main board), but if it's not disconnected, could it explain my problem?

 

Post the pinout of your lcd

 

The pinout ? I didn't have any documentation with the screen.. I'll attach photos of both side
I actually just tried to unsolder the screen this morning, I struggled quite a lot and then I forced it too much and teared out many dots.. now I'm sure I fucked up both the main board and the screen... Damnit 😭 gotta find a spare commander somewhere...

 

Want me to check it? If you send it to me i can check if it's fixable

 

Do you have a link to order the blue lcd? I need to do mine but not sure what would work. I have a lcd and also oled commander, but both are dim already lol.

 

Can't just give you my supplier, hope you understand... But lots of infos on this thread, if you want to try and order some. I still offer the replacement service if you want me to do it, i currently have 6 in stock

 

Sometimes I get it working, sometimes I get it with the blank screen. When you press the buttons the picture goes wonky. Any ideas? I'm thinking I may have not removed pin 18 enough and sometimes is making a connection. Anyone agree with this or do I have other issues? Screen is a known working screen as someone previously used the same screen and said it worked.

Also it says you can ground pin 18. Could I just run a tiny wire to the GND on the other side of the board?

 

I never ground pin 18. Seems like your resistance between 2-3 is not soldered correctly

 

For that matter i only remove the pin from pin18 and the solder with a solder wick. I dont cut trace, never had a problem

 

Nice one mate will try re doing the resistor. Never soldered a SMD resistor in before, seems it's quite tricky.

 

You could use a normal one too, 470ohm does the trick. I use smd because it looks cleaner, even tho nobody will ever see it ???♂

 

Fair one, I take it I can just use the resistor legs as the pins then?

 

You could, or just solder the pin's end to the other pins,cut to fit

 

I included pictures to give you an heads up on how i do it. And no cut on pin 18, just by removing solder and pin

 

Just had a go at it with normal resistors. The 470 ones
had the same effect, no image on the screen. I think tried wiring 2 in series and the screen was very bright (still no image). I then tried parallel and it was much darker but again no image.

At this point I'm not not sure how it has even worked before in the first place.

 

Post a picture of the screen you used and your soldering on both sides, i'll try and see if i can spot something wrong for you.

 

Hopefully you spot something I haven't. I will also say I did original pin pin 18 but removed it. Maybe that's what's causing the issues.

 

Your soldering seems spot on. I'm not home so i can't compare pinout right now. My guess would be defective LCD. I got a defective one that would display garbage out of all the ones i bought, always from the same distributor. I sent a picture to the seller to inform him, he offered to replace it, which i declined. I know their margin of profit is minimal and they ship fast, are a reliable supplier so no way i'd risk all that over a defect. The last two batch i ordered have been bubble wrapped individually

 

Fair one. Any chance of DMing me a link to a quality supplier? Waited nearly 2 months for this one to arrive.

 

Can't really give you my supplier for obvious reason... But if you want me to replace your LCD hit me up!

 

Fair one mate entirely understandable. Many thanks for the help anyways mate. Will try order another and see what happens. Failing that....

 

Check your pm

 

By the way, for the SMD led, the original size is 0805. I bought some 1206 and some 0805, 1206 can be made to work but are really flush with the soldering pads. 0805 is the way to go. Be advised that it does require some skill to solder in place without lifting pads or breaking anything.