Pioneer X-HM20-K Service 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. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION
2011
2011 Printed in Japan
X-HM20-K
RRV4220
CD Receiver System
X-HM20-K
X-HM20-S
X-HM10-K
X-HM10-S
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model Type Power Requirement Serial No. Remarks
X-HM20-K SYXJC8 AC 220 V to 240 V &&&&######YY YY: Europe
X-HM20-S SYXJC8 AC 220 V to 240 V &&&&######YY YY: Europe
X-HM10-K SYXJC8 AC 220 V to 240 V &&&&######YY YY: Europe
X-HM10-S SYXJC8 AC 220 V to 240 V &&&&######YY YY: Europe
K-IZV SEPT.

Pioneer X-HM20-K Specifications

General

Brand	Pioneer
Model	X-HM20-K
Category	Car Receiver
Language	English

Summary

Safety Information

General Safety Warnings

Service manual is for qualified technicians; improper repairs affect safety.

California Proposition 65 Warning

Product may contain chemicals known to cause cancer or birth defects.

Laser Safety Precautions

Apparatus contains Class 1 Laser; servicing by instructed persons only.

Label Identification

Identifies Class 1 Laser Product classification and caution labels on the unit.

Service Precautions

Notes on Soldering

Guidance on using lead-free solder, soldering iron temperature, and solder types.

Replacing CD Mecha Unit

Procedure for removing solder on short circuit point before replacing CD mecha unit.

Specifications

General Specifications

Details power source, consumption, dimensions, and weight of the unit.

Amplifier and CD Player Specs

Specs for amplifier output, CD player type, D/A converter, and response.

Speaker and USB Specifications

Specs for speakers (X-HM20/10) and USB host interface/file support.

Basic Items for Service

PCB Locations

Diagrams showing the location of various PCBs within the unit.

Jigs List

Lists necessary jigs for service procedures.

Block Diagram

Overall Wiring Diagram

Illustrates the complete wiring connections between major components.

Overall Block Diagram

Radio PCB Block Diagram

Block diagram showing connections for the radio PCB.

Headphone PCB Block Diagram

Block diagram showing connections for the headphone PCB.

USB PCB Block Diagram

Block diagram showing connections for the USB PCB.

Main PCB Block Diagram

Block diagram showing connections for the main PCB.

iPod PCB Block Diagram

Block diagram showing connections for the iPod PCB.

Display PCB Block Diagram

Block diagram showing connections for the display PCB.

Key-Switch PCB Block Diagram

Block diagram showing connections for the key-switch PCB.

Power PCB Block Diagram

Block diagram showing connections for the power PCB.

Diagnosis

Troubleshooting: No Power

Step-by-step guide to diagnose and resolve 'No Power' issues.

Troubleshooting: No DISC Display

Steps to diagnose and fix 'NO DISC' errors when a CD is inserted.

Protection Circuit

Service Mode

Disassembly

Top Cabinet Removal

Instructions for removing the top cabinet of the unit.

iPod PCB Assy Removal

Steps to remove the iPod PCB assembly from X-HM20 models.

Front Panel Section

Volume Knob and Front Panel Removal

Steps to remove the volume knob, nut, washers, and front panel section.

PCB Assemblies Removal

Instructions for removing display, key-switch, headphone, and USB PCB assemblies.

Radio PCB Assy

How to Open the Tray

Method to open the CD tray when the power is off.

Power PCB Assy

Main PCB Assy, LOADER Assy, CD MECHA Unit

CD MECHA Unit

Adhesive Application Position

Setting and Adjustment

MCU Software Update

Procedure to update the unit's firmware via USB.

Checking Software Version

Steps to verify the currently installed software version.

Exploded Views and Parts List

Packing Section

Exploded view and parts list for the packing materials.

Packing Section Parts List

Contrast Table (Packing)

Model Specific Packing Differences

Details model-specific part differences in packing.

Exterior Section

Exterior Section Parts List

Contrast Table (Exterior)

Model Specific Exterior Differences

Details model-specific part differences in exterior components.

Schematic Diagram

Main PCB Assy Schematics (1/7)

Schematic details for the first part of the main PCB.

Main PCB Assy Schematics (2/7)

Schematic details for the second part of the main PCB.

Main PCB Assy Schematics (3/7)

Schematic details for the third part of the main PCB.

Main PCB Assy Schematics (4/7)

Schematic details for the fourth part of the main PCB.

Main PCB Assy Schematics (5/7)

Schematic details for the fifth part of the main PCB.

Main PCB Assy Schematics (6/7)

Schematic details for the sixth part of the main PCB.

Main PCB Assy Schematics (7/7)

Schematic details for the seventh part of the main PCB.

iPod PCB Assy Schematic

Schematic for the iPod PCB assembly.

Radio PCB Assy Schematic

Schematic for the Radio PCB assembly.

Display PCB Assy Schematic

Schematic for the Display PCB assembly.

Key-Switch PCB Assy Schematic

Schematic for the Key-Switch PCB assembly.

Headphone PCB Assy Schematic

Schematic for the Headphone PCB assembly.

Power PCB Assy Schematic

Schematic for the Power PCB assembly.

USB PCB Assy Schematic

Schematic for the USB PCB assembly.

iPod Docking Socket Schematic

Schematic for the iPod 30pin docking socket.

PCB Connection Diagram

Main and iPod PCB Connection Diagrams

Diagrams showing physical connections between Main and iPod PCBs.

Display and Key-Switch PCB Connection Diagrams

Diagrams showing connections for Display and Key-Switch PCBs.

Radio PCB Assy Connection Diagram

Diagrams showing connections for the Radio PCB assembly.

Headphone and USB PCB Connection Diagrams

Diagrams showing connections for Headphone and USB PCBs.

Power PCB Assy Connection Diagram

Diagrams showing connections for the Power PCB assembly.

Radio PCB Assy Connection Diagram (Side B)

Diagrams showing connections for the Radio PCB assembly (Side B).

Headphone and USB PCB Connection Diagrams (Side B)

Diagrams showing connections for Headphone and USB PCBs (Side B).

USB PCB Assy Connection Diagram

Diagrams showing connections for the USB PCB assembly.

Power PCB Assy Connection Diagram

Diagrams showing connections for the Power PCB assembly.