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MD094LL/A
Manuel d'utilisateur
Apple MD094LL/A Manuel d'utilisateur Page 172
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Table des matières
DEPANNAGE
MARQUE LIVRES
Noté
.
/ 5. Basé sur
avis des utilisateurs
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iMac (27-inch,
Mid 20
1
0) T
ake Apart — Bluetooth Antenna
1
72
20
1
0-09-09
Remov
al
1
Remove 2
T8 screws
on antenna board:
•
9
22-47
23
2
Disconnect Bluetooth
antenna from the
Bluetooth card
.
3
Remove an
tenna from
housing.
1
2
...
167
168
169
170
171
172
173
174
175
176
177
...
286
287
Apple Technician Guide
1
Contents
3
About This Guide
3
Symptom Charts 35
4
Feedback
10
Overview
12
Identifying Features
13
Product Congurations
13
Safety Precautions
14
Serial Number Location
15
New Accessories
16
Magic Trackpad
16
Pairing the Magic Trackpad
17
Installing Batteries
17
Apple Battery Charger
18
Troubleshooting
19
General Troubleshooting
20
Hardware vs. Software
21
Common Reset Procedures
21
Power On Self Test (POST)
21
2010-09-09
22
Starting Up in Safe Mode
23
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
K22/K23 System Block Diagram
34
Symptom Charts
35
Won’t Start Up
37
Intermittent Shutdown
39
Kernel Panic, System Crashes
44
No Video
46
Corrupted Video
48
Burnt Smell/Odor
51
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
Cosmetic Defects
69
Mass Storage
70
Hard Drive Read/Write Errors
72
Hard Drive Noisy
74
Optical Drive Not Recognized
76
Optical Drive Noisy
82
SD Card Not Recognized
84
Communications
86
AirPort Card Kernel Panic
89
Ethernet Port/Device Issue
90
Input/Output Devices
94
Audio: Microphone
96
2010-09-09
100
Camera Issues
101
Quick Check
102
Deep Dive
102
USB Device Not Recognized
104
Uncategorized Symptoms
117
Mechanical
118
Fan Failures / Thermal Issues
121
Stand/Hinge Issues
122
Physical Damage
123
Service Source
124
Take Apart
124
General Information
125
Cleaning Tools Starter Kit
126
Do’s and Don’ts
127
Handling a Broken Glass Panel
128
Logic Board Handling
134
Reassembly Steps
134
Screw Sizes
134
Access Door
135
1 Raise the stand and
136
2 Remove the access
136
First Steps
137
Glass Panel
139
1 The glass panel can
140
2 Lift glass panel o the
140
3 Remove suction cups
141
Reassembly
141
1 Remove protective
141
2 Clean silicone roller
141
3 Set unit in upright
142
4 Roll silicone roller
142
5 Remove glass panel
142
6 Clean INSIDE of
142
7 Wearing clean gloves
143
8 Clean outside of glass
143
9 Inspect glass for
143
1 Remove 2 T10 screws:
145
2 Lift camera bracket
145
3 Disconnect camera
145
1 Thermal paste is
146
2 Use a black stick to
146
LCD Panel
147
1 Remove 8 T10 screws:
148
2 With computer
148
3 Looking down into
149
4 Pull display forward
150
5 To the right of the
150
6 Gently remove the
151
7 Lift the LCD panel o
151
8 Without touching the
152
Handling the
153
1 Important: Handle
153
2 Never touch LCD
153
1 The panel is heavy!
154
2 Lean panel toward
154
3 Connect the
154
4 IIn the following order
155
5 Press sticky
155
6 Connect the vertical
156
7 Replace 8 panel
156
Vertical Sync Cable (Vsync)
157
LED Temp Sensor Cable
158
DisplayPort Cable
159
2 Peel back aluminum
160
3 Press in on metal
160
Audio Ports and Cable
161
1 Disconnect audio
162
2 Remove cable from
162
AirPort Antenna
163
1 Disconnect antenna
164
2 Peel up EMI tape
164
3 Remove 2 T8 antenna
164
4 Remove antenna from
164
AirPort Card
165
1 Remove 1 T6 screw
166
2 Disconnect 2 AirPort
166
3 Hold card by edges
166
AirPort Carrier Board
167
1 Remove Kapton tape
168
2 Disconnect Airport
168
3 Remove 2 T10 screws:
168
4 Lift AirPort carrier
168
AirPort Cable
169
1 With a black stick
170
2 Lift AirPort cable o
170
3 Remove Kapton tape
170
Bluetooth Antenna
171
1 Remove 2 T8 screws
172
2 Disconnect Bluetooth
172
3 Remove antenna from
172
Bluetooth Board
173
1 Disconnect 2 cables:
174
2 Remove 1 T8 screw:
174
LED Backlight Board
175
1 Remove 4 T10 screws
176
2 Lift up board, ip over
176
Power Supply
177
Backlight Pressure Wall
180
1 Lift pressure wall
181
Power Supply/Hard drive
182
Pressure Wall
182
1 Note: Make sure the
183
2 The camera cable
183
3 Connect AC inlet
184
4 Replace Kapton tape
184
Hard Drive
185
1 If installing a
187
2 Note: Each hard drive
187
3 Important: When
187
Hard Drive Sensor Cable
188
1 Disconnect hard drive
189
1 Important: When
189
Optical Drive
190
2 Lift optical drive
191
3 Pull optical away
191
4 Disconnect optical
192
2 Install optical drive by
193
3 Replace screws in
194
Optical Sensor Cable
195
1 Disconnect optical
196
2 Peel up foam gasket
196
Optical Drive Fan
197
1 Remove 1 T10 screw
198
2 Disconnect fan cable
198
3 Lift fan o 2 guide
198
SD Card Reader
199
1 Remove 1 T8 screw:
200
2 Disconnect cable and
200
1 Look at the sticker on
201
2 The EEE code will read
201
3 Compare old SD card
201
SD Card Reader Cable
202
1 Peel back aluminum
203
2 Disconnect cable
203
IR Board and Cable
204
2 Disconnect IR cable
205
3 With 2 ngers, wiggle
205
Logic Board
206
1 Carefully disconnect
207
2 Tape cables back so
207
3 Remove 8 T10 screws
208
4 Gently pull board
208
5 Carefully lift board up
209
1 Remove HD temp
210
2 Verify that tamper
210
3 Transfer:
211
4 Apply new Ethernet
211
5 Use the Blank Board
211
6 Note: You can install
211
7 Lower board into rear
212
8 Check that the video
213
9 Observe how the
213
10 As you the lower
214
11 Connect 14 cables to
214
12 Insert cable
215
13 Replace 8 T10 screws
215
Video Card
216
1 Remove 3 screws
217
2 Disconnect video card
217
3 Support video card as
217
1 To remove the
218
2 Carefully slide video
218
Solid State Drive (SSD)
219
1 Note: There are two
220
2 Disconnect 3 cables
220
3 Remove 1 T8 screw in
220
4 Use a black stick to
221
5 Lift pressure wall and
221
6 Turn pressure wall
221
1 Make sure the
222
2 On SSD-only congs
222
SSD Data Cable
223
1 Disconnect SSD data
224
Optical/MXM Pressure Wall
225
1 Remove 1 T8 screw
226
2 (Illustration shows
226
3 If replacing pressure
226
Hard Drive Data Cable
227
2 Disconnect other end
228
Optical Drive Data Cable
230
1 Use a black stick to
233
1 Make sure battery
233
2 Press battery (922
233
Right Speaker
234
2 Rotate speaker to the
235
1 Route sensor cable
238
2 Route ambient sensor
238
Ambient Temp Sensor
239
1 Note routing of temp
240
2 Release sensor cable
240
Left Speaker
241
2 Lift speaker out of
242
1 Route speaker cable
242
2 Route speaker cable
243
Hard Drive Fan
244
Removal
245
2 Pull the fan straight
245
Mechanism Cover
246
1 Peel up aluminum
247
2 Remove 4 T10 screws;
247
3 Pry cover o
247
1 Place the computer
249
2 Press the stand down
249
3 Insert the card as far
249
4 Remove the access
249
4 Insert the access card
251
5 Stand the computer
251
Mechanism
252
1 Remove 6 T10 screws:
253
2 Lift mechanism o
253
Bluetooth Cable
254
1 Disconnect the black
255
2 Follow cable along to
255
3 Peel back EMI tape
256
Camera Cable
257
1 Disconnect camera
258
2 Disconnect camera
258
3 Remove EMI tape at
259
Cable, AC/DC Power/Backlight/
260
1 Observe cable routing
261
2 Release cable from
261
SATA, SSD
262
1 Disconnect SSD drive
263
Microphone Cable
265
Rear Housing
266
1 Handling: Handling
267
2 Optical Drive Bezel
267
9 Transfer Camera and
269
10 Apply aluminum
269
11 Place the two new
270
12 Transfer:
270
13 Replace the
270
Additional Procedures
271
Retrieving Mechanism
272
1 Place computer face
273
2 Peer into stand slot
273
3 Cut access card in half
273
4 Insert half of access
273
5 Notice shape of
274
6 The small hole on
274
7 Hold access card so
274
8 Align retrieval
274
9 Have an assistant hold
274
10 When you can pull up
275
11 Pull up mechanism
275
12 Mechanism is now
275
Exploded Views
277
Exploded View #2
278
Exploded View #3
279
External Views
280
Internal Views
282
Logic Board, Front Side
284
Logic Board, Back Side
285
Screw Chart
286
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