开云体育

I'm trying to figure a bit out about the DX27s. As with the DX21 it has chorus, but then again, the DX27 and the DX100 do not, even though they share the same main PCB.

According to the DX21 uses a Panasonic MN 3209 as a chorus. But on my DX27s I could only find a MN 3204, which also is a BBD, but with 512 stages (instead of 256 on the MN 3209).

That would mean the chorus should be slightly different - fine for me.

Unfortunately I was not able to find good images of a PCB of DX27 or DX100, now I really wonder if IC 12 is populated on a DX27/100. I do have a PDF here called "DX27 - DX100 Overall Circuit Diagram", but according to that, IC 12 is a memory chip... But the chip numbers in that diagram have nothing to do with the silk screen numbers on the PCB anyway.

Does anyone have a good picture of the PCB with the area around IC 12/13?

Cheers, Florian