Hi
The failure you describe is not one I have seen. The two LCDs that failed
in my machines had horizontal bars of slightly darker contrast. When the
contrast was varied the bars remained slightly darker than the rest of the
screen. Eventually the -5V dropped to -2V as I assume the current
Hi!
Yeah, everything seems stable on the +-5v side. I will try to replace all the
caps. But probably the screen is going bad :(
Thank you,
> On Oct 14, 2018, at 10:57 AM, Fugu ME100 wrote:
>
> Hi
>
> If the voltage change on pin 4 is smooth the voltages look right - pg 38
> of the M100
Hi
If the voltage change on pin 4 is smooth the voltages look right - pg 38
of the M100 reference manual gives 0-4V as the range for V2. It feels
like VR1 is working correctly, indeed the whole contrast circuit would
appear to be fine.
With the screen plugged in can you measure the -5V and +5V
Hi!
I tried what was suggested and I get 0-3.8v on pin four (without the screen
plugged in). Can’t seem to figure out how to measure pin 4 with the screen
plugged in. When i turn the contrast knob the screen starts to jump around the
display random line sporadically. I have to turn the
agreed thanks for all you do i am a new M100 owner
On Sat, Oct 13, 2018 at 10:30 PM you got me wrote:
> thank you for running this project. It makes it easier for some m100
> owners to grab and use software. Who knows, maybe it will help to grow the
> m100 community.
>
