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Pioneer AVH-P3250DVD/XNRD User Manual

Pioneer AVH-P3250DVD/XNRD
195 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. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2010
AVH-P3200BT/XNUC
CRT4519
DVD AV RECEIVER
AVH-P3200BT
/XNUC
AVH-P3250BT
/XNRD
AVH-P3200DVD
/XNUC
AVH-P3250DVD
/XNRC
AVH-P3250DVD
/XNRD
AVH-P3250DVD
/XNRI
This service manual should be used together with the following manual(s):
Model No. Order No. Mech.Module Remarks
CX-3250 CRT4300 LS1 DVD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly
For details, refer to "Important Check Points for Good Servicing".
K-ZZZ. JAN. 2010 Printed in Japan
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Pioneer AVH-P3250DVD/XNRD Specifications

General IconGeneral
Display TypeLCD
DVD PlaybackYes
CD PlaybackYes
MP3 PlaybackYes
WMA PlaybackYes
USB InputYes
BluetoothNo
iPod ControlYes
iPhone ControlYes
AUX InputYes
Equalizer13-band
AM/FM TunerYes
Video OutputYes
Resolution800 x 480 pixels
Preamp Outputs3 (Front, Rear, Subwoofer)
RMS Power Output14 watts
Peak Power Output50W x 4 Channels
Power Output50W x 4 Channels

Summary

SAFETY INFORMATION

Laser Radiation Warnings

Cautions regarding Class 1M laser radiation and potential exposure risks during servicing.

General Safety Precautions

Manual for qualified technicians; improper repairs affect safety and warranty.

IMPORTANT CHECK POINTS FOR GOOD SERVICING

Product Safety During Service

Conform to regulations, maintain safe environment, use specified parts for repairs.

Service Procedures and Guidelines

Covers adjustments, lubricants, cleaning, and shipping mode requirements.

1. SERVICE PRECAUTIONS

Handling ICs and Power Management

Turn off power before disassembly; handle ICs carefully due to ESD.

Pickup Unit Servicing

ESD protection for pickup unit and required skew adjustment after replacement.

2. SPECIFICATIONS

General and Display Specifications

Details power, dimensions, weight, screen size, pixels, color system, and temperature range.

Audio and Equalizer Specifications

Covers audio output power, load impedance, preout level, and equalizer settings.

2.4 CONNECTION DIAGRAM

Power and Speaker Connections

Diagrams showing how to connect power, ignition, ground, lighting, speakers, and subwoofer.

Other Connection Points

Wiring for microphone, navigation unit, wired remote, and parking brake switch.

3. BASIC ITEMS FOR SERVICE

Check Points After Servicing

Confirms if customer complaints are solved and checks display, video, audio, and operations.

Specific Service Checks

Checks DVD playback error rates, CD playback, tuner action, disc ejection, and appearance.

3.2 PCB LOCATIONS

PCB Identification Diagrams

Shows diagrams with labels for Mother Unit, Interface PCB, DVD Core Unit, and other PCBs.

4. BLOCK DIAGRAM

System Block Diagram Overview

Shows the overall system architecture, including modules like DVD Mechanism, SD PCB, and BT ANT PCB.

5. DIAGNOSIS

Operational Flowchart

Step-by-step chart to check the operational status starting from reset and communication.

5.2 INSPECTION METHOD OF PICKUP UNIT

Pickup Unit Inspection Flowchart

Flowchart for inspecting pickup unit function, including LD current, RF level, and error rate checks.

PICKUP UNIT INSPECTION METHODS

ASMAX and Error Rate Checks

Procedures to check ASMAX level and error rates using specific discs and test modes.

5.3 DIAGNOSIS FLOWCHART

Back End Section Diagnosis Flow

Flowchart for diagnosing issues related to iPod, USB, AVCC5 voltage, DACCLK, and audio circuits.

DIAGNOSIS PROCEDURES

Standby Voltage Check

Checks the voltage at the STANBY test point relative to DGND1.

Power Supply Voltage Checks

Verifies VDD5, VCC33, and VCC12 voltages at specific test points against reference DGND1.

Reset Signal Check

Checks the voltage at the XRES test point relative to DGND1 to verify the reset signal.

VSENS Voltage Check

Checks the voltage at the VSENS test point relative to DGND1, related to power supply configuration.

27 MHz Clock Check

Checks the 27 MHz clock signal generated by the master crystal oscillator (X1501).

SDRAM Interface Check

Verifies the communication interface between the LSI and SDRAM memory.

VD8 and VCC5 Voltage Checks

Verifies VD8 and VCC5 power supply voltages at specific test points relative to PGND3 and AGND1.

AVCC5 Voltage Check

Checks the AVCC5 voltage at the stylus, using PGND and GNDAU as reference.

DACCLK Normalcy Check

Checks the DACCLK for Audio-DAC created by IC1501 using the 27 MHz crystal oscillator.

5.4 ERROR CODE LIST

Error Status and Meanings

Lists error statuses, UART codes, meanings, generation sources, and reset methods.

7. DISASSEMBLY

DISASSEMBLY PROCEDURES

HANDLING PRECAUTIONS

Component Handling Guidelines

Demonstrates handling OK vs NG for specific parts, emphasizing proper handling.

8. EACH SETTING AND ADJUSTMENT

DVD Adjustment Precautions

Crucial precautions for DVD adjustment, including reference voltages, grounding, and handling measurement devices.

DVD ADJUSTMENT

SKEW Adjustment Procedure

Details when SKEW adjustment is required, equipment needed, and connection drawing.

RF Wave and OSD Adjustment Methods

Two methods for SKEW adjustment: monitoring RF waves via oscilloscope or checking numerical RF level via OSD.

PU HANDLING PRECAUTIONS

PU Handling Guidelines

Cautions against touching optical parts, shaded areas, and springs on the PU.

10. SCHEMATIC DIAGRAM

Mother Unit Audio Schematic

Detailed schematic diagram of the Mother Unit, focusing on audio circuits and signal paths.

12. ELECTRICAL PARTS LIST

ELECTRICAL PARTS LIST

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