Benutzerhandbuch für Apple MD094LL/A

Inhaltsverzeichnis

• iMac (27-inch, Mid 2010)

  1
• Contents

  3
• About This Guide

  9
  • Updates

    10
    • Updated 9 September 2010

      10
    • Updated 9 August 2010

      10
    • Apple Technician Guide introduced 27 July 2010

      10
  • Feedback

    10
• Basics

  11
  • Overview

    12
    • Identifying Features

      13
    • Product Configurations

      13
    • Safety Precautions

      14
    • Serial Number Location

      15
    • New Accessories

      16
      • Magic Trackpad

        16
      • Apple Battery Charger

        18
• Troubleshooting

  19
  • General Troubleshooting

    20
    • Wireless Troubleshooting

      20
    • Update System Software & Firmware

      20
    • Troubleshooting Theory

      20
    • Hardware vs. Software

      21
    • Common Reset Procedures

      21
      • Power On Self Test (POST)

        21
      • Resetting the System Management Controller (SMC)

        22
      • Resetting Parameter RAM (PRAM)

        22
      • Starting Up in Safe Mode

        23
      • Removing the Battery, Measuring DC Voltage

        24
    • Diagnostics

      25
    • Sensors Errors

      25
      • Sensor Locations

        27
    • Diagnostic LEDs

      29
      • Location of Diagnostic LEDs

        29
      • LED Functions

        30
      • LED Startup Sequence

        31
    • Logic Board Test Points

      32
    • Functional Overview

      33
    • Block Diagram

      34
  • Symptom Charts

    35
    • Startup and Power

      35
      • No Power, Dead Unit

        35
      • Won’t Start Up

        37
      • Intermittent Shutdown

        39
      • Kernel Panic, System Crashes

        44
      • No Video

        46
      • Corrupted Video

        48
      • Burnt Smell/Odor

        51
      • Uncategorized Symptoms

        52
    • Display

      53
      • Backlight Issue/No Backlight

        53
      • Noise / Unstable Flickering

        55
      • LCD Image Issues

        58
      • Incorrect/Missing Colors

        60
      • Distorted/Blurred Image

        62
      • Pixel Anomalies

        64
      • Vertical/Horizontal Lines

        66
      • Non-Uniform Brightness / Color

        68
      • Cosmetic Defects

        69
      • Uncategorized Symptoms

        69
    • Mass Storage

      70
      • Hard Drive Not Recognized

        70
      • Optical Drive Not Recognized

        76
      • Optical Drive Won’t Accept/Eject Media

        77
      • Optical Drive Read/Write Error

        78
      • Optical Drive Not Performing to Specifications

        80
      • Optical Drive Noisy

        82
      • SD Card Will Not Insert Into Slot

        83
      • SD Card Not Recognized

        84
      • Uncategorized Symptoms

        85
    • Communications

      86
      • AirPort/Bluetooth Issues

        86
      • AirPort Card Kernel Panic

        89
      • Ethernet Port/Device Issue

        90
      • Wireless Input Device Does Not Pair

        91
      • Uncategorized Symptoms

        93
    • Input/Output Devices

      94
      • Apple Remote Inoperable

        94
      • Audio: Microphone

        96
      • Audio: Built-in Speakers Have Distorted Sound

        97
      • Audio: No Audio from Built-in Speakers

        98
      • Camera Issues

        101
      • FireWire Device Not Recognized

        102
      • USB Device Not Recognized

        104
      • Wired Keyboard Does Not Function Properly

        106
      • Keyboard: Specific Keys Do Not Respond

        108
      • Wired Keyboard/Mouse Not Recognized

        108
      • Wireless Input Device Does Not Pair

        110
      • Apple Wireless Mouse/Magic Trackpad Erratic Tracking

        113
      • Wireless Input Device Loses Connection

        114
      • Apple Battery Charger Does Not Charge Batteries

        116
    • Mechanical

      118
      • Noise/Hum/Vibration

        118
      • Fan Failures / Thermal Issues

        121
      • Stand/Hinge Issues

        122
      • Physical Damage

        123
      • Uncategorized Symptoms

        123
• Take Apart

  124
  • General Information

    125
    • Opening the Unit

      125
    • Required Tools

      125
    • Required Special Tools for Glass Panel

      126
    • Cleaning Tools Starter Kit

      126
    • Cleaning & Handling the Glass Panel

      127
    • Do’s and Don’ts

      127
    • Handling a Broken Glass Panel

      128
    • How to Remove a Broken Glass Panel

      128
    • Safety

      133
    • Logic Board Handling

      134
    • Reassembly Steps

      134
    • Note About Images in This Manual

      134
    • Screw Sizes

      134
  • Access Door

    135
  • Memory

    137
    • Removal

      138
    • Reassembly

      138
  • Glass Panel

    139
    • Removal

      140
    • Reassembly

      141
  • Camera

    144
    • Removal

      145
    • Reassembly

      146
  • LCD Panel

    147
    • Removal

      148
    • Handling the Panel

      153
    • Reassembly

      154
  • Vertical Sync Cable (Vsync)

    157
  • LED Temp Sensor Cable

    158
  • DisplayPort Cable

    159
  • Audio Ports and Cable

    161
  • AirPort Antenna

    163
  • AirPort Card

    165
  • AirPort Carrier Board

    167
  • AirPort Cable

    169
  • Bluetooth Antenna

    171
  • Bluetooth Board

    173
  • LED Backlight Board

    175
  • Power Supply

    177
    • Removal

      178
    • Reassembly

      179
  • Backlight Pressure Wall

    180
  • Power Supply/Hard drive Pressure Wall

    182
    • Removal

      183
    • Reassembly

      183
  • Hard Drive

    185
    • Removal

      186
    • Reassembly

      187
  • Hard Drive Sensor Cable

    188
    • Removal

      189
    • Reassembly

      189
  • Optical Drive

    190
    • Removal

      191
    • Reassembly

      193
  • Optical Sensor Cable

    195
  • Optical Drive Fan

    197
  • SD Card Reader

    199
    • Removal

      200
    • Reassembly

      201
  • SD Card Reader Cable

    202
  • IR Board and Cable

    204
  • Logic Board

    206
    • Removal

      207
    • Handling the Logic Board

      209
    • Reassembly

      210
  • Video Card

    216
  • Solid State Drive (SSD)

    219
    • Removal

      220
    • Reassembly

      222
  • SSD Data Cable

    223
  • Optical/MXM Pressure Wall

    225
  • Hard Drive Data Cable

    227
  • Optical Drive Data Cable

    230
  • Battery

    232
    • Removal

      233
    • Reassembly

      233
  • Right Speaker

    234
  • CPU Fan

    236
    • Removal

      237
    • Reassembly

      238
  • Ambient Temp Sensor

    239
    • Removal

      240
    • Reassembly

      240
  • Left Speaker

    241
    • Removal

      242
    • Reassembly

      242
  • Hard Drive Fan

    244
  • Mechanism Cover

    246
  • Stand

    248
    • Removal

      249
    • Reassembly

      250
  • Mechanism

    252
  • Bluetooth Cable

    254
  • Camera Cable

    257
  • Cable, AC/DC Power/Backlight/SATA

    260
  • Cable, AC/DC Power/Backlight/SATA, SSD

    262
  • Microphone Cable

    265
  • Rear Housing

    266
    • Reassembly

      267
• Additional Procedures

  271
  • Retrieving Mechanism

    272
• Views

  276
  • Exploded Views

    277
    • Exploded View #1

      277
    • Exploded View #2

      278
    • Exploded View #3

      279
  • External Views

    280
    • Rear View

      280
    • Ports

      281
  • Internal Views

    282
    • Photo of Components below LCD

      282
    • Photo of Components in the Rear Housing

      283
    • Logic Board, Front Side

      284
    • Logic Board, Back Side

      285
  • Screw Chart

    286