Yamaha QL5/QL1 Digital Mixing Console Service Manual

This document is the official Service Manual for the Yamaha QL5 and QL1 digital mixing consoles. It provides detailed technical information essential for service personnel, including comprehensive specifications, panel layouts, circuit board diagrams, and step-by-step disassembly procedures.

The manual covers critical aspects such as component identification, inspection guidelines, and firmware updates, ensuring proper maintenance and repair of these professional audio devices.

For further technical support and information on optional accessories like Mini-YGDAI cards, please visit the Yamaha Pro Audio website:

Yamaha Pro Audio

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