NJM4580E-D-TE2 replacement in PS

Tweakers' Asylum

Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

I have been modifying my Sony 999ES player with good success lately.
I haven't finished yet as I'm still trying to tune the player to my likings. I still have a bunch of op-amps to try...
I was looking at the linear power supply that provides +/-12V DC to the analog out stage and it consists of a NJM4580E-D-TE2 surface mount dual Op-amp labeled in the service manual as "REGULATOR CONTROL" and two IC's (transistors): 2SC5171 for (+), and 2SA1930 for (-).
I was wondering if replacing the NJM4580E-D-TE2 dual op-amp, or the transistors could benefit the power supply and improve resolution.
Has any of you tried to swap this op-amp, and what were the result? Since this is a surface mount, I don't want to start swaping it if the improvements aren't that significant.
Thanks in advance for any feedback.
Julien

This post is made possible by the generous support of people like you and our sponsors:

Parts Connexion

Topic - NJM4580E-D-TE2 replacement in PS - Julien M. 18:50:43 06/17/04 (0)

You can not post to an archived thread.