Upgraded Single Board PCM1794 NOS DDDAC

GB SMD Parts Status

Testing and matching of ALL JFETs for CCS and Buffers is done. Parts mailed to all CCS GB only persons. I started mailing the rest of the SMD parts packages and plan to get them all out by the middle of next week.

By the way, I haven't received my GB boards yet. When I get them I will immediately assemble a buffer board and a pair of CCS boards. From this I will post detailed instructions on assembly, testing, and adjustments.

I would appreciate receiving a PM when you get the SMD parts.

Carlsor
 
Dear Enrico,
My pcb's arrived this afternoon, loks very nice.
Thanks very much for your GB and effort.

Hoping to get some pictures how exactly you connected your 1/2 clock delay to the red MB.

Best,
Paul

Hi Paul,

Happy to know that you guys are receiving the boards 🙂

Attached are few pictures that should help you to understand the connections of the half clock delay.

To build mine I do the following steps:

- Allocate the 1/2 clock board in the top of the mother board (better with some paper tape) and mark the 9 small holes.
- Marked in the mother boards the holes as per 1/2 clock PCB (like D7, D7.5, D39 etc...)
- Soldered the 9 piece of wires into the 1/2 clock board (better with different colors).
- Inserted the cables in the holes and fixed the 1/2 board with a small bi-adesive tape.
- Revert the mother boards and make the connection as per schematic (in the pictures you can see clearly the traces that have to be cut and where the wires should be soldered)

I hope this can help you but let me know...

Regards,
Enrico
 

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