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Philips MCD122 - Service Manual

Philips MCD122
27 pages
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DVD Micro System
TABLE OF CONTENTS
3141 785 34131
DB 1004
2009
MCD122
Recordable
ReWritable
Location of PC Boards ............................................. 1-1
Electronic Specification
............................................. 1-2
Measurement Setup ................................................ 1-3
Service Aids............................................................... 1-4
Instruction On CD Playability ........................... 1-5 to 1-6
Software Version Check & Upgrade ........................ 2-1
Malfuction Check Chart ............................................. 2-2
Disassembly Diagram................................................ 3-1
Block Diagram ......................................................... 4-1
Wiring Diagram ......................................................... 4-2
Small Board .................................................................. 5
Circuit diagram ...................................................... 5-1
Layout diagram ...................................................... 5-1
LCD Display Board ...................................................... 6
Circuit diagram ...................................................... 6-1
Layout diagram ...................................................... 6-2
Power Board ............................................................... 7
Circuit diagram ............................................. 7-1 to 7-2
Layout diagram ...................................................... 7-3
Decoder Board ............................................................ 8
Circuit diagram ............................................. 8-1 to 8-4
Layout diagram ...................................................... 8-5
Exploded View ......................................................... 9-1
Service Partlist .......................................... 10-1 to 10-2
Factory Partlist ...................................................... 11-1
Version 1.1

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Philips MCD122 Specifications

General IconGeneral
Disc loading typeTray
Number of optical discs1 discs
Depth240 mm
Height90 mm
DisplayLCD
Set width220 mm
Speaker depth160 mm
Speaker width140 mm
DVD region code3
Channels quantity20 channels
Auto digital tuningYes
Headphone connectivity3.5 mm
Image formats supportedJPEG
Package depth280 mm
Package width395 mm
Package height310 mm
Package weight6000 g
RMS rated power40 W

Summary

Location of PC Boards

Electronic Specification

Measurement Setup

Tuner FM Measurement Setup

Setup for measuring FM tuner performance.

Tuner AM (MW,LW) Measurement Setup

Setup for measuring AM tuner performance.

CD Measurement Setup

Setup for measuring CD playback performance.

Recorder Measurement Setup

Setup for measuring recorder performance.

Service Aids

ESD Precautions

Precautions for handling components sensitive to electrostatic discharge.

Lead-Free Soldering Information

Guidelines and identification for lead-free soldering.

Service Instructions

Procedures for returning the set to original condition post-repair.

Instructions on CD Playability

Playability Check Procedures

Steps and test discs for verifying CD playback functionality.

Liquid Lens Cleaning Method

Safe procedure for cleaning the optical lens.

Customer Information Guidance

Advice to provide customers when no fault is found.

Software Version Check & Upgrade

Software Upgrade Procedure

Steps for downloading and installing software updates.

Checking Software Version

Method to verify the installed software version and date.

Malfunction Follow Check Chart

No Power Troubleshooting

Diagnostic steps for units that do not power on.

No Sound Troubleshooting

Diagnostic steps for units with no audio output.

Time;Clock Malfunction Troubleshooting

Diagnostic steps for issues with time or clock functions.

No Display Troubleshooting

Diagnostic steps for units with a blank display.

Disassembly Diagram

Opening DVD Door

Steps to open the DVD drive door.

Removing Top Cabinet

Procedure for detaching the top casing.

Removing Power Board

Steps to detach the power supply board.

Removing DVD Loader Driver

Procedure for detaching the DVD loader mechanism.

Removing Decoder Board

Steps to detach the decoder board.

Removing Front Cabinet

Procedure for detaching the front panel assembly.

Removing Headphone Board

Steps to detach the headphone output board.

Removing Display Board

Procedure for detaching the display board.

Block Diagram

Wiring Diagram

Small Board Diagrams

Headphone Section Circuit and Layout

Circuit diagram and physical layout for the headphone section.

USB Section Circuit and Layout

Circuit diagram and physical layout for the USB port.

MP3 IN Section Circuit and Layout

Circuit diagram and physical layout for the MP3 input.

LCD Display Board Circuit Diagram

LCD Display Board Layout Diagram

Power Board Circuit Diagram (Power Part)

Power Board Circuit Diagram (Audio Part)

Power Board Layout Diagram

Decoder Board Circuit Diagram (Part 1)

Decoder Board Circuit Diagram (Part 2)

Decoder Board Circuit Diagram (Part 3)

Decoder Board Circuit Diagram (Part 4)

Decoder Board Layout Diagram

Exploded View

Accessories Parts List

Electrical Parts - Display PCB

Factory Parts List

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