hifi engine

New Guy Requests Service Manual For Optimus 31-2025 Graphic Equalizer

Will Crump's picture

If anyone has the service manual for the Optimus 2025 graphic equalizer, please post it. I have had one of these units for 20 years. I've only had two problems with it.
(1) I had to re-solder the solder joints where the back panel RCA jacks solder to the main circuit board. (2) Most of the spectrum analyzer display no longer works. I know the LEDs are good because when I power it off they all light for a split instant. I need to see which chips are the drivers.

Will Crump