DAC AD1862: Almost THT, I2S input, NOS, R-2R

And what I have posted is for the JLSounds stacked Ad1862, whereby the glue logic chips are skipped because the i2s to pcm is done by the JLSounds. this is what voxxonline is configuring for his project. Really has to depend on how one wants to use the Dac to choose appropriate configuration on the JLSounds board.
 
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pull away the two dac1862 you believe to be dead to test them on a simple 1.3 V Board with op amp output in order to check. You have two pcb boards, no ?

That's the simpliest way, but maybe you haven't both pcbs already populated ? My understanding is the tube version was the second one you made ?

Cause it could be the front end or the output if not the ad1862 chips. Maybe with your tube you keeped the DIL8 socket clean ? It could be anything like the CCS, etc ! So better first to try to check the AD1862s away from that DAC.
 
I don't know what AoL and AoR are.
Now it looks like this, I took out the opamp components from board (and triple checked they were not in the DAC circuit. Signal is took from pin2, or better, the resistor close to it.
Surely I'm missing something.
 

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