Dear Ambika builders & good advisors,
Everything (except voice cards) in place and probed, LEDs are lighted accurately (LED15 is flickering, I reckon it has to do with the save/load task?)
But; LCD screen is dead. Does not light up at all. I understand it should live up at this point (before loading the SD card etc)… What could be wrong here?
LCD is screwed and soldered as it should (I think?) … Any suggestions?
Which LCD model is it? What kind of resistor/jumper have you soldered as the backlight current limiting resistor?
It’s the standard LCD that comes with the kit (GDM4002A ver1.2 xiamen ocular) resistor/jumper accordingly …from kit (not sure which, on which slot?). Thanks …
Don’t know if there is any useful info in the submitted picture, but anyway …
Looks like the resistor / jumper is missing.
Can’t see 100% but there should be a wire jumper (or possibly a resistor) in the spot marked ‘0’ just above the LCD…
Oh shit, I had no idea … but it makes sense. So what do you say folks, wire or resistor for the standard LCD? (if R, what value…?) Really appreciate your quick response here, thanks loads.
I hope the LCD is’t killed now…
You need to solder a bridge (conductor with, ideally, no resistance) on this spot. That’s the meaning of the “0R” and the mining of the little wire shown connecting both ends.
That Worked! Many thanks!
And to those who read this and have a another display make sure you get the right value for your display. The answer is in the forum at the blink of a search.