7i92+7i77 Not connect

Check the FST16211 power supply (should be ~4.1V)

PCW wrote:

Check the FST16211 power supply (should be ~4.1V)

I looked from the manual, I don't understand. pin vcc of 16211, but check  at Q1 has 4.2V
And on DB25 IO1 2 3 ...there are 5V
www.mouser.com/datasheet/2/149/fairchild..._fst16211-325762.pdf

You have 7i92 that works with 7i77. in stock or not

I try not to send all 5 of these 7i92 back to Mesa because they need it urgently. my customers are waiting it's due

thanks for the help My city is now 11PM. I will come to consult again tomorrow.

No we have only a few 7I92s left

Note that I checked a couple lot 16138 7I92s with a 7I77
and had no issues with the sserial channels.

I don't think the issues can be resolved without returning the cards to Mesa for evaluation