Pass Labs X1 volume control probelm

I have a Pass Labs X1 preamp, and I’m currently facing an issue where, at volume level 3, the left channel suddenly goes to maximum loudness. During troubleshooting, I swapped the volume control board with the right channel, and the problem followed the board. This confirmed that the issue lies with the volume control board.





After further testing, I identified that Q3 on the board is the faulty component. It’s marked as “8F” and comes in an SOT-23 package. However, I haven’t been able to find much information about it. Could you help identify the exact part number for this component?
 
You are probably best asking this in the Pass Labs forums. All I have is this.

Examining the board should at least tell you if it is a three terminal reg or just a two terminal part.

Screenshot 2025-01-09 061641.png
 
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