EasyManua.ls Logo

Apple LED Cinema Display 27 User Manual

Apple LED Cinema Display 27
117 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
 Apple Technician Guide
LED Cinema Display (27-inch)
Updated: 2010-11-18
Question and Answer IconNeed help?

Do you have a question about the Apple LED Cinema Display 27 and is the answer not in the manual?

Apple LED Cinema Display 27 Specifications

General IconGeneral
Screen Size27 inches
Resolution2560 x 1440 pixels
Aspect Ratio16:9
Panel TypeIPS
Brightness375 cd/m²
Contrast Ratio1000:1
Response Time12 ms
Color Support16.7 million colors
Built-in DevicesiSight camera, Microphone
Power Consumption250 W (maximum)
Viewing Angle178° horizontal / 178° vertical
PortsMini DisplayPort, USB 2.0
Power SupplyIntegrated

Summary

About This Guide

Updates

Details document revision history and changes.

Feedback

Instructions for providing comments and feedback on the guide.

Basics

Overview

General description of the LED Cinema Display (27-inch) features.

Identifying Features

Details on built-in components, ports, and connectivity.

System Requirements

Lists compatible hardware and software for the display.

Product Configurations

Refers to external technical specifications for product configurations.

Safety Precautions

Critical warnings and precautions for safe handling and operation.

Serial Number Location

Guides to finding the serial number on the display.

Troubleshooting

General Troubleshooting

Initial steps and common troubleshooting procedures.

Troubleshooting Theory

General principles and resources for troubleshooting.

Update System Software & Firmware

Importance of installing latest software and firmware updates.

Display Adapters

Notes on supported display adapter usage and potential issues.

Check Audio Features of Connected Computer

How the display handles audio input via DisplayPort and USB.

Functional Overview

Diagram and explanation of component connector locations.

Block Diagram

Visual representation of how display modules interconnect.

Test Points Diagram

Identifies specific points for electrical testing and voltage verification.

Symptom Charts

Startup and Power Issues

Troubleshooting steps for issues related to powering on or system startup.

Dead Unit / No Power

Specific troubleshooting flow for a display that won't power on.

MagSafe Adapter – No Power

Diagnosing issues related to the MagSafe power connection.

Sleep/Wake Issue

Troubleshooting problems with the display's sleep and wake functions.

Uncategorized Symptoms

Procedure for handling issues not covered by other symptom codes.

Display Issues

Blank / No Video, No Backlight

Troubleshooting steps when the display shows no image or backlight.

Noise / Unstable Flicker

Diagnosing and resolving audio noise or flickering video issues.

Unstable Brightness / Brightness Progressively Getting Low

Troubleshooting display brightness fluctuations or dimming.

LCD Image Issues

General troubleshooting for various image quality problems.

Pixel Anomalies

Detailed steps for diagnosing and resolving pixel defects.

Non-Uniform Brightness

Diagnosing and fixing uneven screen brightness distribution.

Incorrect/Missing Colors

Troubleshooting issues with inaccurate or absent colors on the display.

Distorted/Blurred Image

Steps to resolve blurry or distorted visual output.

Vertical/Horizontal Lines

Procedures for fixing screen issues involving lines.

Washed or Predominant Color Tint

Addressing issues with color cast or washed-out appearance.

Physical Damage

Physical Damage

Identifying and handling physical damage to the display.

Uncategorized Symptoms

Procedure for reporting issues not fitting other categories.

Input/Output Issues

USB Issues

Troubleshooting problems with USB port connectivity and device recognition.

Camera Issues

Diagnosing and resolving problems with the built-in camera.

Audio Issues

Troubleshooting sound output and microphone functionality.

Uncategorized Symptoms

Procedure for handling I/O issues not covered elsewhere.

Mechanical Issues

Noise / Hum / Vibration

Diagnosing and resolving mechanical noises or vibrations.

Burnt Smell / Odor

Troubleshooting procedures for unusual smells emanating from the unit.

Fan Failures / Thermal Issues

Diagnosing and resolving fan malfunctions or overheating.

Mechanical Physical Damages

Identifying and addressing physical damage to mechanical parts.

Take Apart

General Information

Essential procedures and safety guidelines before disassembly.

Required Tools

Lists the necessary tools for servicing the display.

Required Special Tools for Glass Panel

Specific tools for handling and cleaning the glass panel.

Cleaning Tools Starter Kit

Overview of the contents of the cleaning tools starter kit.

Cleaning & Handling Glass Panel

Procedures for safely cleaning and handling the glass panel.

Do’s and Don’ts

Guidelines for proper and improper handling of the glass panel.

Handling a Broken Glass Panel

Procedures for safely removing a shattered glass panel.

How to Remove a Broken Glass Panel

Detailed steps for safely removing a broken glass panel.

Safety

Important safety warnings during the disassembly process.

Reassembly Steps

General guidance for reassembling the unit after repairs.

Note About Images in This Guide

Disclaimer regarding potential differences in manual images.

Stand

First Steps

Preliminary actions before removing the display stand.

Tools

Lists the tools required for stand removal and reassembly.

Removal

Step-by-step instructions for detaching the stand from the display.

Reassembly

Steps for correctly reattaching the stand to the display.

Glass Panel

First Steps

Initial actions before handling the glass panel, including ESD precautions.

Tools

Lists tools needed for glass panel service.

Removal

Procedures for safely removing the glass panel from the display.

Reassembly

Steps for correctly reinstalling the glass panel.

LCD Panel

First Steps

Initial actions before servicing the LCD panel, including ESD precautions.

Tools

Lists tools required for LCD panel service.

Removal

Step-by-step instructions for removing the LCD panel.

Replacement Notes

Important considerations when installing a new LCD panel.

Handling LCD Panel

Best practices for safely handling the LCD panel.

EDID Reset Tool

Utility for resetting display identification data after panel replacement.

LCD Function Cable

First Steps

Initial actions before servicing the LCD function cable.

Removal

Steps for disconnecting and removing the LCD function cable.

LCD Temp Sensor Cable

First Steps

Initial actions before servicing the LCD temperature sensor cable.

Removal

Steps for disconnecting and removing the LCD temp sensor cable.

LCD Ground Cable

First Steps

Initial actions before servicing the LCD ground cable.

Removal

Steps for disconnecting and removing the LCD ground cable.

Camera

First Steps

Initial actions before servicing the camera assembly.

Removal

Steps for removing the camera from the display.

EEPROM Reset Tool

Utility for resetting the ambient light sensor calibration after camera replacement.

Camera Cable

First Steps

Initial actions before servicing the camera cable.

Removal

Steps for disconnecting and removing the camera cable.

Power Supply

First Steps

Initial actions before servicing the power supply.

Warning: HIGH VOLTAGE

Critical safety warning regarding high voltage in the power supply.

Tools

Lists tools required for power supply service.

Removal

Steps for removing the power supply unit.

DC Power Cable

First Steps

Initial actions before servicing the DC power cable.

Removal

Steps for disconnecting and removing the DC power cable.

Fan

First Steps

Initial actions before servicing the fan.

Removal

Steps for disconnecting and removing the fan.

Reassembly Note

Important notes for correctly reinstalling the fan assembly.

Ambient Temp Sensor Cable

First Steps

Initial actions before servicing the ambient temperature sensor cable.

Removal

Steps for disconnecting and removing the ambient temp sensor cable.

Logic Board

First Steps

Initial actions before servicing the logic board.

Warning: HIGH VOLTAGE

Critical safety warning when working with the logic board.

Important

Note on using the EDID Reset Tool when replacing the LCD panel.

Tools

Lists tools required for logic board service.

Removal

Steps for disconnecting and removing the logic board.

Reassembly Notes

Key points for reconnecting cables during logic board reassembly.

Logic Board Connectors

Diagram identifying all logic board connectors and their functions.

Left Speaker

First Steps

Initial actions before servicing the left speaker.

Removal

Steps for disconnecting and removing the left speaker.

Right Speaker

First Steps

Initial actions before servicing the right speaker.

Removal

Steps for disconnecting and removing the right speaker.

Subwoofer

First Steps

Initial actions before servicing the subwoofer.

Removal

Steps for disconnecting and removing the subwoofer.

All-in-One Cable

First Steps

Initial actions before servicing the all-in-one cable.

Removal

Steps for disconnecting and removing the all-in-one cable.

Mechanism

First Steps

Initial actions before servicing the stand mechanism.

Removal

Steps for removing the stand mechanism.

Replacement Note

Important note on transferring the serial number sticker.

Rear Housing

First Steps

Lists all components that must be removed before accessing the rear housing.

Camera Thermal Paste

Procedure for transferring and reapplying thermal paste to the camera.

Additional Procedures

Retrieving Mechanism

Procedure for retrieving the display mechanism if it retracts unexpectedly.

Overview

Explanation of the mechanism retraction and retrieval process.

Tools

Lists tools required for mechanism retrieval.

Removal

Step-by-step instructions for retrieving the display mechanism.

Views

Exploded View

Diagram showing all display components and their part numbers.

Screw Chart

Reference guide detailing screw types and their applications.

Internal Views

Photographs of the display's internal components after disassembly.

External Views

Photographs of the display's exterior features.

Rear View

Image of the display's rear, showing stand attachment points.

I/O Ports

Description and images of the display's input/output ports.

All-In-One Cable

Details of the integrated cable assembly.

Related product manuals