this is the circult of korg mr-1
the opamp RC4580 is really bad
n I found that the lineout and phone out seems have to pass through this opamp
however there is limited choice for opamp..as mr1 just provide 5v power supply and no space
can any one suggest any method to improve the sq?
i don mind if i have to change the opamp or bypass
i just need the line out and recording function
go and read the threads on experiences with SMD assembly and SMD component swapping.
If after that you are confident you have the tools and skills to carry out the modifications come back and ask again.
If after that you are confident you have the tools and skills to carry out the modifications come back and ask again.
Don't bypass it.
Also check to see if any of the resistors around it are fried. If they are, the value may be unreadable. Then you need a schematic.
Also check to see if any of the resistors around it are fried. If they are, the value may be unreadable. Then you need a schematic.
yeah i don believe in my skill as well...so i just ask my fd to do it
this player is really strange...i can adjust the line out volume
this player is really strange...i can adjust the line out volume
- Status
- Not open for further replies.