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Pioneer AVH-280BT/XNUC User Manual

Pioneer AVH-280BT/XNUC
94 pages
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ORDER NO.
PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 2 Jalan Kilang Barat, #07-01, Singapore 159346
PIONEER CORPORATION 2015
AVH-280BT/XNUC
CRT5859
DVD RDS AV RECEIVER
AVH-280BT/XNUC
AVH-280BT/XNEU5
AVH-285BT/XNRC
AVH-285BT/XNRD
AVH-285BT/XNRI
AVH-289BT/XNID
This service manual should be used together with the following manual(s):
Model No. Order No. Mech.Module Remarks
CX-3311 CRT5651 LS2.5 DVD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly,
Diagnosis , Each Setting and Adjustment
K-ZZZ DEC. 2015 Printed in Japan
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Pioneer AVH-280BT/XNUC Specifications

General IconGeneral
Display TypeLCD
Screen Size6.2 inches
Resolution800 x 480
DIN SizeDouble DIN
BluetoothYes
AUX InputYes
DVD PlayerNo
Pandora ControlYes
iPod/iPhone ControlYes
Android CompatibilityYes
Steering Wheel Control CompatibleYes (Adapter required)
Camera InputYes
AM/FM TunerYes
RMS Power Output14 watts
Peak Power Output50 watts x 4
Audio Formats SupportedMP3, WMA
Video Formats SupportedMPEG-1, MPEG-2
SiriusXM ReadyYes

Summary

Safety Information

Safety Precautions for Service Personnel

Guidelines for qualified technicians on safe repair practices.

Service Precautions

General Service Precautions

Conforming to regulations and following safety instructions.

Notes on Disassembly and Assembly

Procedures and precautions for taking apart and reassembling the unit.

Operation Check and Diagnosis Notes

Guidelines for troubleshooting and verifying operations after repair.

Parts Replacement Notes

Precautions for handling sensitive components and replacing parts.

Adjustment Notes

Information on required adjustments after component replacement.

Other Service Considerations

Details on soldering practices and environmental considerations.

Specifications

Product Specifications

General technical specifications of the AV receiver.

Disc and Content Format Compatibility

Supported disc types and content formats.

Basic Service Items

Post-Servicing Checkpoints

Essential checks to ensure product quality after repair.

PCB Locations

Diagrams showing the physical placement of PCBs within the unit.

Jigs and Cleaning Tools List

List of specialized tools and cleaning supplies for service.

Cleaning Procedures

Instructions for cleaning critical parts like pickup lenses.

Block Diagrams

Overall Connection Diagram

A high-level overview of how major units and components connect.

System Block Diagram (Mother Unit)

Detailed block diagram of the main processing and control components.

Audio Video Block Diagram

Diagram illustrating the signal flow for audio and video processing.

Power Supply System Figure

Diagram showing power distribution and voltage levels across the system.

Diagnosis

Operational Flowchart for Power-On

Step-by-step process for diagnosing power-on sequences.

Pickup Unit Inspection Method

Procedures for testing and diagnosing the optical pickup mechanism.

Error Code List

Table of error codes, meanings, sources, and reset methods.

Connector Function Description

Details on the purpose and pin assignments of external connectors.

Service Mode

Version Information Display

How to view system software version and state.

Service Test Mode Operations

Accessing and navigating the various diagnostic test modes.

Firmware Upgrade Procedure

Steps for updating the unit's internal software via USB.

Software Version Check

Method to verify the installed firmware version of the unit.

Disassembly Procedures

Monitor Assembly Removal

Steps for safely removing the display unit from the chassis.

Monitor PCB Removal

Procedures for detaching the main circuit board of the display.

Key PCB Removal

Steps for removing the button interface board.

DVD Mechanism Module Removal

Instructions for detaching the optical disc drive unit.

Heat Sink and Holder Removal

Steps for removing thermal management components.

Bracket and Holder Removal

Procedures for detaching chassis brackets and holders.

Mother Unit Removal

Steps for disconnecting and removing the main motherboard.

Settings and Adjustments

Adjustments After Unit Replacement

Specifies adjustments needed when major assemblies are replaced.

Flicker Adjustment Procedure

Steps to minimize screen flicker by adjusting values.

Exploded Views and Parts List

Packing and Accessories

Diagram and list of items included in the product packaging.

Exterior Parts List (Part 1)

Detailed list and diagrams of external cosmetic and structural parts.

Exterior Parts List (Part 2)

Additional diagrams and parts list for exterior components.

DVD Mechanism Module Parts List (Part 1)

Detailed list and diagrams of components within the DVD drive unit.

DVD Mechanism Module Parts List (Part 2)

Further breakdown of parts for the DVD mechanism.

Schematic Diagrams

Mother Unit (Sense) Schematic

Circuit diagram for the sense circuitry on the mother unit.

Mother Unit (BT IF) Schematic

Circuit diagram for the Bluetooth interface on the mother unit.

Mother Unit (USB_POW) Schematic

Circuit diagram for the USB power supply section of the mother unit.

Mother Unit (I/F) Schematic

Circuit diagram for the interface section of the mother unit.

Mother Unit (E.VOL) Schematic

Circuit diagram for the electronic volume control on the mother unit.

Mother Unit (DDC 2ch) Schematic

Circuit diagram for the DDC 2-channel control on the mother unit.

Mother Unit (Tuner) Schematic

Circuit diagram for the FM/AM tuner section of the mother unit.

Mother Unit (PWIC) Schematic

Circuit diagram for the power control (PWIC) on the mother unit.

Mother Unit (ucom) Schematic

Circuit diagram for the microcontroller (ucom) on the mother unit.

Mother Unit (Power) Schematic

Circuit diagram for the power management circuits on the mother unit.

Mother Unit (SOC) Schematic

Circuit diagram for the System-on-Chip (SOC) on the mother unit.

Monitor PCB (PCB_IF) Schematic

Circuit diagram for the main interface of the monitor PCB.

Monitor PCB (LCD_BL) Schematic

Circuit diagram for the LCD backlight driver on the monitor PCB.

Monitor PCB (LCD_PW) Schematic

Circuit diagram for the LCD power control on the monitor PCB.

Monitor PCB (LCDI/F) Schematic

Circuit diagram for the LCD interface on the monitor PCB.

Monitor PCB (TCON) Schematic

Circuit diagram for the Timing Control (TCON) on the monitor PCB.

Monitor PCB (ISO) Schematic

Circuit diagram for the isolation components on the monitor PCB.

Relay Unit Schematic

Circuit diagram for the relay control unit.

Key PCB Schematic

Circuit diagram for the button input interface board.

Waveforms

Visual representations of signal patterns for diagnostic purposes.

PCB Connection Diagrams

Mother Unit PCB Connections

Diagrams showing how connectors interface with the mother unit PCB.

Monitor PCB Connections

Diagrams illustrating connector assignments for the monitor PCB.

Relay Unit PCB Connections

Diagrams showing connector interfaces for the relay unit PCB.

Key PCB Connections

Diagrams detailing connector assignments for the key input PCB.

Electrical Parts List

Miscellaneous Components

List of miscellaneous electronic parts used in the unit.

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