digital designs M4a SFB-012-80

[joselorenzo]

Hello
Someone will have an image or information of the circuit integrated that the driver card of a digital designs M4a and value of all pots .
Please .
Thanks

 

[caraudioguy2100]

Here is what you need

All of the 7 pin large ic’s are TL074CN

The pots are 50k 100k 20k and last one is marked C104

 

[joselorenzo]

Hello
Your information is helpful.
One more request, please can you give me the code of the capacitors C173, C174. In so very close to IC102 (TL074)
caraudioguy2100 thanks !!

 

[caraudioguy2100]

C173:221 which is a 220pf cap
C174:102 which is a 1nf cap

 

[joselorenzo]

caraudioguy2100 thanks

 

[caraudioguy2100]

Do you happen to know if this is the right resistor ?

R280

 

[joselorenzo]

Upload photo of the R280