Messages

1

preenfm2 and preenfm3 / Re: PreenFM3 v0.90 - output routing

« on: October 24, 2020, 04:09:59 PM »

You can install 0.91 to fix the output routing issue.

2

preenfm2 and preenfm3 / Re: PreenFM3 v0.90 - output routing

« on: October 11, 2020, 06:08:45 PM »

Ok many thanks, ill await your email !

3

preenfm2 and preenfm3 / Re: PreenFM3 v0.90 - output routing

« on: October 11, 2020, 09:57:43 AM »

Ok so where to post it to you?

4

preenfm2 and preenfm3 / Re: PreenFM3 v0.90 - output routing

« on: October 07, 2020, 02:31:15 PM »

I can post it to you if you would like to use it to debug?

5

preenfm2 and preenfm3 / Re: PreenFM3 v0.90 - output routing

« on: October 07, 2020, 10:59:41 AM »

same problem exists, the screen goes white as before.

6

preenfm2 and preenfm3 / Re: PreenFM3 v0.90 - output routing

« on: October 06, 2020, 07:39:24 PM »

1. When the screen is white, can you try to hold down the "Menu" button for one or 2 seconds untill it goes black then release. It reinits the display. Does the screen come back after that ?

YES it returns to normal


2. Can you try the firmware in the attached zip :
https://drive.google.com/file/d/1BDWWxVl31jN6005eECzhV845tw332e40/view?usp=sharing
It uses a slower clock to send data to the display.
Is it better, the same or worse ?

How to flash this firmware, its not a *.dfu?


3. Can you double check all the display soldering point ?

Yes seems fine apart from that 100nF cap issue 


4. Does it still glitch when you lightly press the bottom border of the display without touching the pins ?

No change when pressed


5. Can you share the display exact reference ?

https://www.amazon.co.uk/gp/product/B07QS6BCGK/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1

7

preenfm2 and preenfm3 / Re: PreenFM3 v0.90 - output routing

« on: October 05, 2020, 10:39:50 PM »

Looks like this is the problem 

I've destroyed the tiny resistor next to the display header..

8

preenfm2 and preenfm3 / Re: PreenFM3 v0.90 - output routing

« on: October 05, 2020, 05:51:34 PM »

ok i have found something, the white screen bug seems to appear not just on voice change but also in other places in the GUI...

i have noticed GUI glitches that occur when operating buttons and pots... the screen brightness pulses a little whilst pressing buttons / pots and quickly appearing GUI glitches appear over the screen...

I have made a video to demonstrate this for you... watch the screen as i repeatedly press button to see the glitches and you can also the white screen at the end.

https://we.tl/t-VMhPScpQgH

hope this helps!

9

preenfm2 and preenfm3 / Re: PreenFM3 v0.90 - output routing

« on: October 05, 2020, 04:21:33 PM »

i will do some more testing to find a consistent pattern then get back to you!

here is the DX7 folder : https://we.tl/t-EdYjp0Butp

10

preenfm2 and preenfm3 / Re: PreenFM3 v0.90 - output routing

« on: October 05, 2020, 12:29:00 PM »

thank you!

another strange problem i have is, sometimes when scrolling through the DX7 voices for selection... all of sudden the screen goes white and i cannot continue to operate the preenfm3, i am forced to cycle the power.

i am yet to find a specific pattern or perhaps abnormal file name that may cause this.

11

preenfm2 and preenfm3 / [Fixed in v0.91] PreenFM3 v0.90 - output routing

« on: October 04, 2020, 08:28:06 PM »

When I route a voice to output #1 it goes to output #2 anyone know why this is?