led_cinema_display_24.pdf

 Apple Technician Guide

LED Cinema Display (24-inch)

Updated: 2010-02-08

 Apple Inc.

Under the copyright laws, this document may not be copied, in whole or in part, without the

written consent of Apple.

Every efort has been made to ensure that the information in this document is accurate. Apple

is not responsible for printing or clerical errors.

Apple

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USA

+ 1 408 996 1010

www.apple.com

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and other countries.

LED Cinema Display (24-inch)

Contents

About This Manual

Updates 7

Updated 8 February 2010 7

Updated 28 October 2009 7

Updated 2 December 2008 7

Feedback 7

Basics

Overview 9

Identifying Features 9

System Requirements 9

Product Conigurations 9

Rear View 10

Ports 10

All-In-One Cable 10

Serial Number Location 11

Serial Number on Stand 11

Serial Number on Mechanism 11

Troubleshooting

General Troubleshooting 13

Troubleshooting Theory 13

Hardware vs. Software 13

Functional Overview 14

Block Diagram 15

Test Points Diagram 16

Symptom Charts 17

Startup and Power Issues 17

Dead Unit / No Power 17

Burnt Smell/Odor 19

MagSafe Adapter – No Power 20

Sleep/Wake Issue 21

Uncategorized Symptoms 22

Display Issues 23

Blank / No Video, No Backlight 23

Noise / Unstable Flicker 24

LCD Image Issues 26

Physical Damage 30

Uncategorized Symptoms 30

Input/Output Issues 31

USB Issues 31

Camera Issues 32

Audio Issues 33

Uncategorized Symptoms 36

Mechanical Issues 37

Noise, Hum or Vibration 37

Fan Failures / Thermal Issues 39

Mechanical Physical Damages 40

Uncategorized Symptoms 40

Take Apart

General Information 42

Opening the Unit 42

Required Tools 42

Required Special Tools for Glass Panel 42

Cleaning Tools Starter Kit 43

Cleaning Tool Resources 43

Cleaning & Handling the Glass Panel 43

Do’s and Don’ts 43

Handling a Broken Glass Panel 44

How to Remove a Broken Glass Panel 44

Safety 45

Reassembly Steps 45

Note About Images in This Guide 45

Glass Panel 46

Removal 47

Replacement 48

LCD Panel 51

Removal 52

Replacement 54

Logic Board 55

Removal 56

Replacement 58

Power Supply 59

Blower 61

Removal 62

Replacement 63

Camera 64

Subwoofer 66

AC Inlet 68

All-in-One Cable 70

Speakers 72

Removal 73

Replacement 73

Stand 74

Mechanism 77

Rear Housing 79

Additional Procedures

VESA Mount 81

Retrieving Mechanism 84

Views

Exploded View 89

Cable Routing Diagram 90

Photo of Interior 91

Screw Chart 92

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