Skip to content
New issue

Have a question about this project? # for a free GitHub account to open an issue and contact its maintainers and the community.

#

By clicking “#”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? # to your account

Jump to bottom

Fan schematic appears to be wrong #4

Open
ghost opened this issue Feb 28, 2023 · 0 comments
Open

Fan schematic appears to be wrong #4

ghost opened this issue Feb 28, 2023 · 0 comments

Comments

@ghost
Copy link

ghost commented Feb 28, 2023 •
edited by ghost
Loading

The schematic shows that the fans are controlled by low-side switching (Pin 2 always connected to +5V, Pin 1 connected to GND through an N-channel MOSFET), but probing my board I can clearly tell that the fans are being high-side switched; pin 1 remains grounded continuously while pin 2 changes state based on M106 commands. What's up with this? Is there a newer unpublished revision of the Buddy board? This is a bit scary as I've been relying on these schematics for repairs and mods, and I'm just realizing I can't necessarily trust this schematic to accurately reflect the board.
# for free to join this conversation on GitHub. Already have an account? # to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
0 participants