STM CircleOS forum / Dead LCD

ah · 2009-10-24 15:01:55

I have just received and Primer2 with LCD problems. Initially it was erratic to during power up some times it powers up and some times it does not. When I tried to connect it to the Ride 7 and write software, I can blink all the LED's and execute most of the demo code. But, the LCD stopped powering up. I even tried to load the factory code ”restore_primer2_circle_factory.bat”, but nothing is happening. So, the question:
Do I have a bad LCD? Is their a way to confirm that?

Thanks
AH

themanix · 2009-10-24 17:06:19

sound like a bad LCD

Francis · 2009-10-26 07:53:11

We found some LCD with problems (capacitors soldered on the flex are sometimes too close, and create some shortcuts. Perhaps you could try to put the flex/LCD with a slightly different position.

ah · 2009-10-26 20:37:44

Could you please provide a little bit more detail, what do you mean by different position? it will help if you can attach a drawing.

Francis · 2009-10-27 07:52:59

Just try out of the plastic case. Does it change anything ?

ah · 2009-10-27 13:34:57

It is dead, no response in or outside the case.

yrt · 2009-10-28 07:40:36

Just a last question : could you check the power supplies (3V1 and 2V8) ? May be you have a problem of regulator.

# 1 2009-10-24 15:01:55 Dead LCD

Dead LCD

# 2 2009-10-24 17:06:19 Dead LCD

Re: Dead LCD

# 3 2009-10-26 07:53:11 Dead LCD

Re: Dead LCD

# 4 2009-10-26 20:37:44 Dead LCD

Re: Dead LCD

# 5 2009-10-27 07:52:59 Dead LCD

Re: Dead LCD

# 6 2009-10-27 13:34:57 Dead LCD

Re: Dead LCD

# 7 2009-10-28 07:40:36 Dead LCD

Re: Dead LCD

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