#5 - Mapping out LCD segments

In this video, I take an old static/ glass LCD and work out the mapping of the segment and common pins. If you have a junk drawer with loads of old bespoke LCD's then you probably won't find a datasheet - so you have to work it out yourself.
It's worth taking a look at the EEVBlog video below where Dave gives a great talk on how to (and how not to) drive an LCD.
EEVBlog - How to drive an LCD • EEVblog #1045 - How To...
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[@codexrat]

Great job explaining it! I had a hard time searching this kind of video!
Saved my day! 👍

[@athousandprojects]

Glad it helped! :-) :-)

[@leonamor8662]

This video is gold 🙌

[@athousandprojects]

Thank you. Glad it was helpful 😊

[@leonamor8662]

I have a question, no matter between which pins I apply a voltage, several segments light up at the same time, this means more complex multiplexing? Is this still possible to map? Thank you so much@@athousandprojects

[@muralkz]

nice job

[@hamouz718]

Great video, do you what is the power consumption

[@athousandprojects]

Hi,
This was filmed a few years ago, so don't have the consumption but these LCD displays draw very little - usually in the uA range

[@esc4x4]

Hello, I was watching your videos and I wanted to know if you can replace an lcd of a radio transmitter because its lcd is smeared and I can't find an answer, the model is Yaesus Systen 600 and I ask, can the change be made for something more up-to-date? ??

[@athousandprojects]

Hi,
You would have to find an exact replacement as the LCD layout will be specific for that transmitter. It also depends on the internals, but if you were to replace it with something more up to date, you would need a new display driver and certainly need to alter the code base to drive it - I'm not sure how possible that would be - if at all possible would be a hard bit of work.
It does have a great service manual though www.radiomanual.info/schemi/YAESU_HF/FT-600_serv.pdf
The best is to look for a spare LCD part on eBay or radio ham groups- or buy a broken one with a good display and swap it out. Or get hold of the manufacturer and see if they have spare parts. www.yaesu.com/
Good luck and let me know if you have any success

[@Jedda73]

Nobody has pointed out yet that this video is completely silent until the last couple of seconds.

[@athousandprojects]

Hmm - I just checked and there is audio from the beginning. Might have been a RUclips Glitch?

[@Jedda73]

@@athousandprojects Your correct the sound is back, weird. Thanks for the video.

[@kevinkipkorir3132]

heard nothing on my left ear phone

[@kevinkipkorir3132]

but the right one was okay theanks for the awesome content