Hi Jim. Yes, the rectifiers are smd parts mounted underneath the regulated supply modules.
https://www.ldovr.com/product-p/tps7a-dppsu.htm
https://www.ldovr.com/product-p/tps7a-dppsu.htm
Can you describe what changes you made to the circuit to take the AD844?Hi everyone, I have been trying to get the AD844 to work as a drop-in on the TDA1541 board but can’t seem to get it work. As a drop-in, it is bass light. I presume the input offset trim is causing the early roll off. Have folks been able to work it in without a dedicated separate PCB? I read about the 844 plus buffer board somewhere but hoping to try it out before jumping to that.
some advice about AD811 (after all, I am the author of Vunce's I/V ); remove that PCB as far as possible from the transformer and reduce the length of the cable between the miro PCB and Vunce PCB ( PCM63 to AD811).So pumped finally got my PCM63 dac to make music. Thank you to Vunce for the 811 I/V and thank you again to Miro1360 for the Dac gerbers, was really fun to build and sounds amazing. Alot of learning happened with all the challenges these projects presented. My best tip is to use your DMM and beep out the pins on the SMD logic and opamp parts.