Hey, guys!
I checked the innards of my Victron Multi Plus ||, and spotted that the screen PCB was designed for 4 buttons, not for the only one you see at the front.
Button2, button3, button4 and all resistors and capacitors wiring it are missing.
Also J102 is missing.
Could someone knowledgable suggest what those other buttons were designed for?
I wonder If I can make it 4 button Victron for myself.
My guess is that the display module is not specially designed by Victron.
It’s a more or less “standard” display module.
Somewhere in the community I read about what standard module that is.
A GX device is to complicated to control it with such a display. Maybe there where plans for more at the very beginning but in the end Victron decided to only show some very basic information.
I don’t think you can add the missing buttons, you would also have to modify the firmware for that.
That J102 connector looks like a programming connector for the IC101.
And from what I am seeing in the picture and it’s more interesting, is that the IC101 is responsible for the backlight intensity of the LCD module through Q102 and this is direct proportional with the ambient light conditions.
The intensity of the ambient light is read by what seems to be a photo sensitive component, probably a phototransistor, Q101.
Can somebody confirm that the intensity of the LCD module backlight is proportional and automatically adjusted with the intensity of the ambient light?
If yes, nice feature !