Bluescsi v2 is not recignized by Mac SE

[peterN]

I have a problem with BlueSCSI v2 Desktop 202310a and DB25 v2 2024.01a .
I ordered the boards from JLCPCB and uploaded the corresponding BOM and top-pos. files .
Since the C141676 (YAGEO RC0603FR-07110RL 100mW Thick Film Resistors 75V ±100ppm/℃ ±1% 110Ω 0603 Chip Resistor - Surface Mount ROHS) were not in stock, I replaced them with C168275 (Walsin Tech Corp WR06X1103FTL 100mW Thick Film Resistors 75V ±100ppm/℃ ±1% 110kΩ 0603 Chip Resistor - Surface Mount ROHS).
After the assembled boards arrived, I soldered on the Pico and the missing parts. I loaded the file BlueSCSI_Pico_2024-02-22_ceb4b8e1.uf2 onto the Pico.
Using an SD card with a bootable image on it, I connected the cards to a Mac SE and booted it. It did not find any disk, neither with the DB25 nor with the desktop version. The ACT LED does not flash, the PWR LED lights up, the PICO LED flashes 1 time.
The Mac started without any problems with the SD card when I plugged it into a DB25 v2 Bluescsi v2 from a friend.
Can the problem be caused by the replacement chips?
I am at a loss.

 

[This Does Not Compute]

C141676 is a 110-ohm part, whereas C168275 is a 110,000-ohm part. The two are definitely not interchangeable.

 

[peterN]

I was already afraid of it, now I have certainty. Thank you very much for your answer.

 

[eric]

JLC's parts come in and out of stock - you many times can buy some inventory yourself to ensure they're in stock via lcsc.

For knowing if a part is a susceptible replacement you can ask over on our DIY Github Discussions page - there's a few alternatives there. https://github.com/BlueSCSI/BlueSCSI-v2/discussions/categories/build-it-yourself

Those resistors are tiny but doable to replace - hopefully you can find some and replace them on the boards you got.

 

[peterN]

JLC's parts come in and out of stock - you many times can buy some inventory yourself to ensure they're in stock via lcsc.

For knowing if a part is a susceptible replacement you can ask over on our DIY Github Discussions page - there's a few alternatives there. https://github.com/BlueSCSI/BlueSCSI-v2/discussions/categories/build-it-yourself

Those resistors are tiny but doable to replace - hopefully you can find some and replace them on the boards you got.

When looking for spare parts, I overlooked the k in front of the omega. :-(
The desoldering of the wrong resistors worked well, I have ordered the hopefully correct resistors.

Many thanks for this great project and the support.