Pioneer DEH-2050MPG/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 2007
DEH-2050MP/XN/ES
CRT4044
CD RECEIVER
DEH-2050MP /XN/ES
DEH-2050MPG /XN/ES
DEH-2050MPG /XN/ES1
This service manual should be used together with the following manual(s):
Model No. Order No. Mech.Module Remarks
CX-3195 CRT3815 S10.5COMP2 CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly
For details, refer to "Important Check Points for Good Servicing".
K-ZZU. OCT. 2007 Printed in Japan
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TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

Pioneer DEH-2050MPG/XN/ES Specifications

General

Brand	Pioneer
Model	DEH-2050MPG/XN/ES
Category	Car Receiver
Language	English

Summary

SAFETY INFORMATION

SERVICE PRECAUTIONS

Guidelines for qualified technicians to ensure safe repair procedures.

Safety Precautions for those who Service this Unit

Specific safety warnings for handling the unit, especially laser diode.

CAUTION

Warnings regarding battery replacement and disposal.

Important Check Points for Good Servicing

1. Product safety

Procedures for safe product handling and repair, including parts and environment.

1. SERVICE PRECAUTIONS

1.1 SERVICE PRECAUTIONS

General precautions for safe servicing, including handling ICs and pickup units.

1.2 NOTES ON SOLDERING

Guidance on using lead-free solder and appropriate soldering techniques.

2. SPECIFICATIONS

2.1 SPECIFICATIONS

2.4 CONNECTION DIAGRAM

Connection Diagram

Visual representation of electrical connections for the unit.

3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

Essential checks to confirm quality after service completion.

4. BLOCK DIAGRAM

4.1 BLOCK DIAGRAM

FM/AM Tuner Unit

FM/AM Tuner Unit

5. DIAGNOSIS

5.1 OPERATIONAL FLOW CHART

Visualizes the power-on and operational sequence of the unit.

5.2 ERROR CODE LIST

Error Messages

Lists and explains error codes displayed by the unit.

5.3 CONNECTOR FUNCTION DESCRIPTION

CONNECTOR FUNCTION DESCRIPTION

Details the functions of each pin on the unit's connectors.

6. SERVICE MODE

6.1 CD TEST MODE

Instructions for entering and using the CD test mode for adjustments.

Flow Chart

Operation Test Mode

Details the operations performed in each test mode.

6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT

Checking Procedure

Step-by-step instructions for checking the grating angle.

7. DISASSEMBLY

Removing the CD Mechanism Module (Fig.1)

Step-by-step guide to remove the CD mechanism module.

Removing the Tuner Amp Unit (Fig.2)

Guide for removing the tuner amplifier unit.

How to hold the Mechanism Unit

Removing the Upper and Lower Frames

Procedure for disassembling the upper and lower frames of the mechanism.

How to remove the CD Core Unit

How to remove the CD Core Unit

Steps for removing the CD core unit, including soldering and screw removal.

How to remove the Pickup Unit

How to remove the Pickup Unit

Detailed steps for removing the pickup unit assembly.

8. EACH SETTING AND ADJUSTMENT

8.1 PCL OUTPUT CONFIRMATION

Procedure to confirm PCL output signal frequency.

9. EXPLODED VIEWS AND PARTS LIST

9.3 CD MECHANISM MODULE

CD MECHANISM MODULE SECTION PARTS LIST

CD MECHANISM MODULE SECTION PARTS LIST

Continues the parts list for the CD mechanism module.

10. SCHEMATIC DIAGRAM

10.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)

Overall schematic showing connections between major units.

A TUNER AMP UNIT

A TUNER AMP UNIT

10.2 KEYBOARD UNIT

KEYBOARD UNIT

KEYBOARD UNIT

Schematic detailing the keyboard unit's components and connections, including error codes.

10.3 CD MECHANISM MODULE(GUIDE PAGE)

PICKUP UNIT(P10.5)(SERVICE)

Schematic for the pickup unit, detailing its connections and switches.

CD DRIVER

CD CORE UNIT(S10.5COMP2)

CD CORE UNIT(S10.5COMP2)

Continuation of the CD core unit schematic, showing IC and component connections.

PICKUP UNIT (P10.5) (SERVICE)

PICKUP UNIT (P10.5) (SERVICE)

Schematic detailing the pickup unit's connections, switches, and ICs.

CD DRIVER

10.4 WAVEFORMS

CD Core Unit

Displays various waveforms related to CD loading and operation.

11. PCB CONNECTION DIAGRAM

11.1 TUNER AMP UNIT

B KEYBOARD UNIT

12. ELECTRICAL PARTS LIST

Circuit Symbol and No. / Part No.

Circuit Symbol and No. / Part No.

RESISTORS

CAPACITORS