I’ve done many lasers, not yet on an Audio Research, shouldn’t be any problems from what I saw inside on the net.
Some lasers have a "shorting " ESL protection solder blob on the ribbon connector strip, or sometimes on the sub-board, this needs to be removed, (open circuited) the reason so many diy'er say their new laser they just put in is no good, and blame eBay
https://ae01.alicdn.com/kf/HTB1AXjgKpXXXXckaXXXq6xXFXXXl/205634546/HTB1AXjgKpXXXXckaXXXq6xXFXXXl.jpg...
https://i.ytimg.com/vi/7asQ30f-l1g/hqdefault.jpg
blob:https://www.youtube.com/054f6c13-7f09-4619-9137-1cd53c4da8e9
Cheers George
Some lasers have a "shorting " ESL protection solder blob on the ribbon connector strip, or sometimes on the sub-board, this needs to be removed, (open circuited) the reason so many diy'er say their new laser they just put in is no good, and blame eBay
https://ae01.alicdn.com/kf/HTB1AXjgKpXXXXckaXXXq6xXFXXXl/205634546/HTB1AXjgKpXXXXckaXXXq6xXFXXXl.jpg...
https://i.ytimg.com/vi/7asQ30f-l1g/hqdefault.jpg
blob:https://www.youtube.com/054f6c13-7f09-4619-9137-1cd53c4da8e9
Cheers George

