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Old 12-14-2011, 12:58 AM   #5303 (permalink)
Join Date: Jun 2009
Location: Vancouver, BC
Posts: 28
Thanks: 8
Thanked 5 Times in 4 Posts
I am getting 4.91vbefore and 0.22v on the U3 side
and on the U9 side of R23, 4.91v before and 3.75v after precharge .
At pin 4 and now it shows 11.09v before and 7.63v after precharge.

Will I need to get the exact replacement optocoupler, or can I use a substitute?

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