Ray Byrne

Would like User manual, circuit diagrams, for old analogue LM desk, same style, era & colour of LM690/1 dimmers, as shown on publicity pics. Is 24ch + 'Matrix Master', + 2x FX cart slots. Legends & # are rubbed off, co unsure of model numbers for modules. Circuit schematic for LM690 dimmer be handy, as mains input caps exploded, some output caps melted, dripping brown gunge over boards.