The manual includes a complete Bill of Materials. For a repair technician, this is a shopping list. It specifies:
This is the heart of the manual. You’ll find detailed circuit diagrams for:
Enter service mode:
LED sequence indicates:
Behringer Service Europe:
+49 2154 9206 4166
service@behringer.com behringer xenyx qx1202usb service manual
Spare Parts:
Order via Mouser or authorized distributor using part numbers above.
The V5499 DSP is not user-replaceable; return unit to service center.
Document Revision: R02
Last Review: 2023-10-01
Confidential – For Authorized Service Centers Only
is an analog 12-input, 2-bus mixer designed for small-scale live performances, recording, and podcasting. It combines classic analog preamplification with modern digital effects and USB connectivity. Core Audio Features The manual includes a complete Bill of Materials
XENYX Mic Preamps: Features four state-of-the-art microphone preamplifiers that provide 130 dB of dynamic range and a bandwidth extending from 10 Hz to over 200 kHz.
One-Knob Compression: Includes "one-knob" studio-grade compressors on all four mono channels, allowing for easy dynamic control of vocals and instruments with a dedicated control LED.
Klark Teknik Multi-FX Processor: Equipped with a high-quality 24-bit digital FX processor that offers 100 presets, including reverb, chorus, flanger, delay, and pitch shifter.
"British" EQ: Every mono channel features a 3-band "British" equalizer, designed to provide the warm and musical sound characteristic of high-end British mixing consoles. Connectivity and Control LED sequence indicates:
USB/Audio Interface: A built-in stereo USB interface allows for direct connection to a computer for recording and playback at 48 kHz. Input/Output Configuration:
12 Inputs: Comprising four mono mic/line channels and four stereo line-level channels.
Flexible Routing: Main mix outputs are supplemented by separate control room, headphones, and 2-track outputs.
Phantom Power: Provides +48V phantom power on all four mono channels for use with studio condenser microphones.
Monitoring: Includes an FX to Control Room switch that allows users to monitor only the effects signal in headphones or monitor speakers. Technical Specifications
Upon opening the QX1202USB service manual, the uninitiated might feel overwhelmed. It is a dossier of schematics, board layouts, and parts lists. However, broken down, it reveals the intricate circulatory system of the mixer.