Pioneer DEH-2850MP/XN/ES User Manual

ORDER NO.
PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, 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 2005
DEH-2800MP/XN/UC
CRT3554
HIGH POWER CD/MP3/WMA PLAYER WITH FM/AM TUNER
DEH-2800MP
/XN/UC
DEH-2850MP
/XN/ES
This service manual should be used together with the following manual(s):
Model No. Order No. Mech. Module Remarks
CX-3164 CRT3583 S10.5COMP1 CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly
For details, refer to "Important Check Points for Good Servicing".
K-ZZA. NOV. 2005 Printed in Japan

Pioneer DEH-2850MP/XN/ES Specifications

General

Power Output	50W x 4
RMS Power Output	22W x 4
Tuner	AM/FM
CD Playback	Yes
MP3 Playback	Yes
WMA Playback	Yes
WAV Playback	No
AAC Playback	No
USB Port	Yes
USB Direct Control for iPod/iPhone	Yes
Aux Input	Yes
Preamp Voltage	2V
Preset EQ	Yes
Display Type	LCD
Bluetooth	No
Detachable Faceplate	Yes
Remote Control	Yes
Subwoofer Output	Yes
Preset Stations	24

Summary

SAFETY INFORMATION

CD Section Precaution

Safety instructions for servicing the CD mechanism, emphasizing power off and ESD protection.

Important Check Points for Good Servicing

Product safety

Ensure safety regulations and environment are maintained during repairs.

Adjustments

Perform adjustments according to manual procedures for optimal performance.

Lubricants, Glues, and Replacement parts

Use specified lubricants and adhesives, apply proper amounts.

Cleaning

Clean parts like optical pickups and lenses properly to restore performance.

Shipping mode and Shipping screws

Set shipping mode or install screws to protect products during transit.

SPECIFICATIONS

General

Covers general specifications like power source, dimensions, and weight for DEH-2800MP/XN/UC.

Audio

Details audio output power, impedance, and frequency response for DEH-2800MP/XN/UC.

CD player

Lists specifications for the CD player system, signal format, and frequency characteristics.

FM tuner

Provides specifications for the FM tuner, including frequency range and sensitivity.

AM tuner

Lists specifications for the AM tuner, including frequency range and sensitivity.

EXPLODED VIEWS AND PARTS LIST

PACKING(DEH-2800MP/XN/UC)

Exploded view and parts list for the packing of DEH-2800MP/XN/UC.

PACKING(DEH-2850MP/XN/ES)

Exploded view and parts list for the packing of DEH-2850MP/XN/ES.

EXTERIOR

Exploded view detailing the exterior parts and their locations.

CD MECHANISM MODULE

Exploded view of the CD mechanism module and its components.

BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

BLOCK DIAGRAM

High-level overview of the system's functional blocks and connections.

OVERALL CONNECTION DIAGRAM(GUIDE PAGE)

Illustrates the overall system connections between major modules.

KEYBOARD UNIT

Schematic diagram for the keyboard unit, showing button connections.

CD MECHANISM MODULE(GUIDE PAGE)

Schematic diagram detailing the CD mechanism module's circuitry.

Waveforms

PCB CONNECTION DIAGRAM

TUNER AMP UNIT

PCB layout showing component placement and connector locations for the tuner amp.

KEYBOARD UNIT

PCB layout for the keyboard unit, illustrating component and connector placement.

CD CORE UNIT(S10.5COMP1)

PCB layout for the CD core unit, showing component placement.

ELECTRICAL PARTS LIST

ADJUSTMENT

CD ADJUSTMENT

Procedures and cautions for adjusting the CD mechanism module.

CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT

Procedure to check grating angle after replacing the pickup unit.

ERROR MODE

SYSTEM MICROCOMPUTER TEST PROGRAM

Details on the PCL output test program for system microcomputer diagnostics.

GENERAL INFORMATION

DISASSEMBLY

Step-by-step instructions for disassembling the unit, including component removal.

CONNECTOR FUNCTION DESCRIPTION

Pin assignments and functions for external connectors.

PARTS

IC

List of integrated circuits with pin functions and part numbers.

OPERATIONS

Head unit

Explanation of the functions of the head unit's buttons and controls.