Product Category:
In-Dash Multimedia Receiver
Target Segment:
Mid-to-high-end aftermarket automotive entertainment systems.
Key Competitors:
Alpine, Kenwood, Sony, JVC, Clarion (during its production era)
Display Type:
Large, motorized 7-inch touchscreen display
Disc Format Support:
DVD-Video, DVD-R/RW, CD, CD-R/RW
Audio Codec Support:
MP3, WMA, WAV
Video Format Support:
MPEG-4 (DivX, Xvid), JPEG, MP3/WMA playback from DVD-R/RW
Connectivity:
USB Interface, AUX Input, RCA Pre-outs (e.g., 3-pair: Front, Rear, Subwoofer)
Amplifier Power:
MOSFET 50W x 4 (peak power output)
Interface:
Intuitive graphical user interface (GUI) with customizable background and menu options.
Manual Title:
Pioneer AVH-P6850DVD Service Manual & Repair Guide
Intended Audience:
Certified Pioneer Technicians, Advanced DIY Repairers
Estimated Page Count:
Approximately 150-250 pages (typical for this class of device service manual)
Manual Type:
Service Manual, Repair Guide, Workshop Manual
Language:
English (Primary), likely with diagrams and technical illustrations understandable across languages
Audio System:
Complete coverage of audio amplification, processing, and output stages.
Display System:
Detailed information on the touchscreen display, its control board, and associated video signal processing.
Disc Playback:
Comprehensive coverage of DVD and CD transport mechanisms, laser assembly, error correction, and playback circuitry.
Connectivity Ports:
Information on USB, AUX inputs, and any pre-out/RCA connections.
Radio Tuner:
Coverage of AM/FM tuner circuitry, signal reception, and tuning mechanisms.
Power Supply:
Detailed schematics and troubleshooting for the internal power supply unit and voltage regulation.
Control Interface:
Information on button inputs, steering wheel control interfaces, and internal communication protocols.
Disassembly Assembly:
Step-by-step instructions for dismantling and reassembling the unit for component access and repair.
Troubleshooting:
Systematic diagnostic procedures for common and complex faults, including symptom-based troubleshooting trees.
Repair Techniques:
Guidance on component-level repair, including soldering techniques for surface-mount devices (SMD) and other delicate components.
Calibration:
Procedures for calibrating touchscreens, audio parameters, and other relevant settings after repair.
Replacement Parts:
Identification of key replacement parts and their corresponding part numbers.
Firmware Updates:
Instructions for updating or flashing the unit's firmware, if applicable.
Depth:
Comprehensive, covering component-level diagnostics, circuit diagrams, and detailed explanations of internal operations.
Circuit Diagrams:
Includes detailed block diagrams and schematics for all major internal circuits.
Waveform Analysis:
May include expected oscilloscope waveforms at key test points for diagnostic purposes.
Component Identification:
Identification of critical integrated circuits (ICs), transistors, and other components with their functions.
Display Technology:
Motorized 7-inch Wide VGA Color LCD Touchscreen
User Interface:
Advanced graphical user interface (GUI) with customizability and intuitive navigation.
Audio Enhancement:
Features like Equalizer (EQ), Loudness, Bass/Treble controls, and potentially advanced digital signal processing (DSP) features.
Backup Camera Input:
Likely supports connection of an aftermarket backup camera for enhanced visibility.
Usb Port:
Allows playback of media files (MP3, WMA, DivX/MP4) from USB storage devices.
Auxiliary Input:
Provides an analog audio input for connecting external audio sources.
Remote Control:
Often bundled with an infrared (IR) remote control for convenient operation.
Steering Wheel Control Interface:
Compatibility with vehicle-specific steering wheel control interfaces (often requiring an adapter module).
Cleaning Schedule:
Periodic cleaning of the display screen and ventilation grilles is recommended (consult manual for specific instructions).
Lubrication:
N/A (Electronic device)
Common Faults:
Potential issues might include display glitches, disc loading/ejection problems, power supply failures, or touchscreen unresponsiveness. The manual will detail diagnosis for these.
Ventilation:
Ensuring adequate ventilation around the unit to prevent overheating is crucial for longevity.
Reset Procedure:
The manual will likely outline a reset procedure for software-related glitches.
Brand:
Pioneer Corporation is a well-established Japanese multinational corporation, renowned for its extensive history in consumer electronics, particularly in car audio and home entertainment.
Product Line:
Part of Pioneer's 'AV' series of in-dash multimedia receivers, which focused on integrating audio and video playback with advanced features.
Production Era:
Likely produced in the mid-to-late 2000s, a period of rapid advancement in digital media playback for car audio.
