Pioneer AVH-285BT/XNRI User Manual

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

Pioneer AVH-285BT/XNRI Specifications

General

Brand	Pioneer
Model	AVH-285BT/XNRI
Category	Stereo Receiver
Language	English

Summary

Safety Information

1.1 Service Precautions

General guidelines for safe servicing procedures and precautions for technicians.

1.2 Notes on Disassembly / Assembly

Procedures and precautions for safely disassembling and assembling the unit.

1.3 Notes on Operation Check / Diagnosis

Key points and modes for operation checks and diagnosis procedures.

1.4 Notes on Replacing Parts

Precautions for handling and replacing components, especially ICs.

1.5 Notes on Adjustment

Information on required adjustments after part replacement.

1.6 Others

Additional notes on soldering and materials used in the unit.

2. Specifications

2.1 Specifications

General specifications and reference to the owner's manual.

2.2 Disc/Content Format

Information on supported disc and content formats, including logos.

3. Basic Items for Service

3.1 Check Points After Servicing

Essential checks to perform after completing service to ensure product quality.

3.2 PCB Locations

Diagram showing the physical locations of main PCBs within the unit.

3.3 Jigs List

List of necessary jigs and tools required for specific service tasks.

3.4 Cleaning

Instructions for cleaning specific parts before shipping the product.

4. Block Diagram

4.1 Overall Connection Diagram

High-level diagram showing how major units and connectors are interconnected.

4.2 Block Diagram

Detailed system block diagram illustrating internal component connections and data flow.

4.3 Power Supply System Figure

Diagram illustrating the power supply system, voltage distribution, and current consumption.

5. Diagnosis

5.1 Operational Flowchart

Flowchart detailing the power-on sequence and operational checks.

5.2 Inspection Method of Pickup Unit

Step-by-step procedure for inspecting and diagnosing the pickup unit.

5.3 Error Code List

Table listing error status, meaning, source, and reset methods.

5.4 Connector Function Description

Description of connector functions and pin assignments.

6. Service Mode

6.1 Version Information

How to access and display the system's version and state information.

6.2 Service Test Mode

Overview of the service test mode menu and its options.

6.3 Firmware Upgrade

Method for updating the unit's firmware using a USB memory stick.

7. Disassembly

Removing the Monitor Assy (Fig.1)

Procedure for removing the monitor assembly from the unit.

Removing the Monitor PCB (Fig. 2)

Steps to disconnect and remove the monitor PCB from the assembly.

Removing the Key PCB (Fig.3)

Procedure for removing the key PCB, including latches and holders.

Removing the DVD Mechanism Module (Fig.4)

Instructions for removing the DVD mechanism module, including solder shorting.

Removing the Heat Sink and the Holder (Fig.5)

Steps to remove the heat sink and associated holder.

Removing the Bracket and the Holder (Fig.6)

Procedure for removing the bracket and its holder.

Removing the Mother Unit (Fig.7)

Steps to remove the main mother unit from the chassis.

Points to Notice When Assembling: When Stick the Sheets (2 locations) at Holder (Fig.8)

Important points for assembling, specifically regarding heat radiation sheets.

8. Each Setting and Adjustment

8.1 Adjustment Required When HTE Unit is Replaced

Identifies assemblies that require adjustment after replacement.

8.2 Flicker Adjustment

Detailed procedure for performing flicker adjustment via the service mode.

9. Exploded Views and Parts List

9.1 Packing

Exploded view illustrating the packing components of the product.

9.2 Exterior(1)

Exploded view of the exterior parts of the unit, shown in sections.

9.3 Exterior(2)

Exploded view of additional exterior parts and cables.

9.4 DVD Mechanism Module(1)

Exploded view of the DVD mechanism module, detailing its components.

9.5 DVD Mechanism Module(2)

Continuation of the exploded view for the DVD mechanism module.

10. Schematic Diagram

10.1 Mother Unit (Sense)

Schematic diagram for the Mother Unit's sense circuitry.

10.2 Mother Unit (BT IF)

Schematic for the Mother Unit's Bluetooth interface circuitry.

10.3 Mother Unit (USB_POW)

Schematic for the Mother Unit's USB power supply circuitry.

10.4 Mother Unit (I/F)

Schematic for the Mother Unit's interface circuitry.

10.5 Mother Unit (E.VOL)

Schematic for the Mother Unit's E.VOL (External Volume) circuitry.

10.6 Mother Unit (DDC 2ch)

Schematic for the Mother Unit's DDC 2ch (Digital Data Communication) circuitry.

10.7 Mother Unit (Tuner)

Schematic for the Mother Unit's tuner circuitry.

10.8 Mother Unit (PWIC)

Schematic for the Mother Unit's PWIC (Power IC) circuitry.

10.9 Mother Unit (ucom)

Schematic for the Mother Unit's microcontroller (ucom) circuitry.

10.10 Mother Unit (POWER)

Schematic for the Mother Unit's power supply circuits.

10.11 Mother Unit (SOC)

Schematic for the Mother Unit's System-on-Chip (SOC) circuitry.

10.12 Monitor PCB (PCB_IF)

Schematic for the Monitor PCB's interface (IF) circuitry.

10.13 Monitor PCB (LCD_BL)

Schematic for the Monitor PCB's LCD backlight circuitry.

10.14 Monitor PCB (LCD_PW)

Schematic for the Monitor PCB's LCD power circuitry.

10.15 Monitor PCB(LCDI/F)

Schematic for the Monitor PCB's LCD interface circuitry.

10.16 Monitor PCB(TCON)

Schematic for the Monitor PCB's TCON (Timing Controller) circuitry.

10.17 Monitor PCB(ISO)

Schematic for the Monitor PCB's isolation circuitry.

10.18 Relay Unit

Schematic diagram of the relay unit.

10.19 Key PCB

Schematic diagram of the key PCB.

10.20 Waveforms

Illustrations of expected waveforms for various test points.

11. PCB Connection Diagram

11.1 Mother Unit

PCB connection diagram for the Mother Unit (Side A and Side B).

11.2 Monitor PCB

PCB connection diagram for the Monitor PCB (Side A and Side B).

11.3 Relay Unit

PCB connection diagram for the Relay Unit (Side A and Side B).

11.4 Key PCB

PCB connection diagram for the Key PCB (Side A and Side B).

12. Electrical Parts List

(1) Packing Section Parts List

List of parts included in the product packing.

(2) Contrast Table

Table comparing part differences across different model variations.

Miscellaneous

List of miscellaneous electronic components and their part numbers.

Resistors

List of resistors with their circuit symbols, part numbers, and locations.

Capacitors

List of capacitors with their circuit symbols, part numbers, and locations.