Carefully lift the top cover. Disconnect the ribbon cables linking the main PCB to the VU meters and front controls.

AC Mains, 6x C-cell batteries, or 9V DC input. Common Maintenance Tasks

: Including a dedicated head for a control track used in audio-visual slide shows. Professional Controls

Several online resources provide access to this document, usually in PDF format.

Line-Out, external speaker jack, and 6.35mm headphone jack Assembly Disassembly Instructions

: Essential schematics for the analog and digital boards, including wiring and waveforms.