Hello
I have designed breakout board for Arduino Radio based on Si4737, it's similar to Si4735 breakout but improved and using I2C. I am sure it's 101% functional but I am having difficulty to get it running, I modified two Arduino libraries of Si4735 to be compatible with my breakout and even tried to write my own code without library to power up and tune to station but having exactly the same issue:
Radio power-up command works but it won't tune, status request from Si4737 is 0x80 (clear to send) and everything seems normal except it won't tune.
When I send power-up command I hear small pop in speakers and I can read 0x80, seek to station won't work or auto seek, and no sound. Please help to get it running I got 40 of them and can't make it work, spend days to figure out, I know it's something simple, just can't find it.
To the first person that helps me solve this I will mail one of my Radio breakout boards for free as a appreciation.
Actual circuit and board shown below