7i96 - P1 CONNECTOR - 15 mA for sink - it is not good

More
4 years 1 month ago #252434 by zz912

Please Log in to join the conversation.

More
4 years 1 month ago #252438 by PCW
OK its R38

It looks like it was a deliberate change to allow better operation with G540 drives (that need more high drive on the charge pump signal = DB25 pin16 =GPIO50)

I will fix the documentation

Please Log in to join the conversation.

More
4 years 1 month ago #252459 by zz912
This is my R38. 
 

Attachment not found

Please Log in to join the conversation.

More
4 years 1 month ago #252477 by zz912
I have an application where I use a 7I37TA card to protect P1. Will this resistor not bother her?

Please Log in to join the conversation.

More
4 years 1 month ago #252479 by zz912

OK its R38

It looks like it was a deliberate change to allow better operation with G540 drives (that need more high drive on the charge pump signal = DB25 pin16 =GPIO50)

I will fix the documentation
 
It si not DB25 pin16. It is lucky 13. :-)
 

Attachment not found

Please Log in to join the conversation.

More
4 years 1 month ago #252519 by PCW
OK
It should not interfere with any Mesa daughter card but might cause issues
with some parallel port BOBs

I checked the BOM and its 300 Ohms there, not sure if it was done for a reason
or was just a mistake.

Please Log in to join the conversation.

Time to create page: 0.045 seconds
Powered by Kunena Forum