[macau]

китаез отписался:

Glad to receive your message.
Next is the replay of you, hope it can help out.
1, the 5pins blue connect are prepared 12Vpin, but the first pin from left J16 is the 12V input,
for example we can input 12V from regulated power supply board.
2, Both of J21&J22 have 6pins, it's one-to-one correspondence, it's used to extend in the future,
nothing on other circuit.
3, J3&J4 are no use.
4, J12 is output of the 12V power supply, but no stabilivolt.
and you have refered to the "TDA7342 TDA7385" and the control,TEF6606,DAC PCM2704,the underlying control protocol etc. , we can design it as you want at all, but it's need the design cost.
By the way, we want to know you are the user or the R&D, or the salesman?
Where are you from in Russia, If you are interested in market in Russia, we can support you on product and design.
Do you have skype code or QQ code? we can discuss in there.