Apple iMac (Flat Panel Spezifikationen PDF herunterladen (Seite 136)

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Error Beep(s)

Computer beeps at startup.

1. RAM expansion DIMMs for the iMac must be PC133 compliant and use SDRAM devices. If the user

installs a DIMM that uses EDO or SGRAM devices, the computer will beep several times when the user

attempts to restart the computer.

2. Refer to “Power-On Self Test” mentioned earlier in this chapter.

Error Beep(s) Symptom Charts

iMac (Flat Panel) Troubleshooting - 25

1 2 ... 131 132 133 134 135 136 137 138 139 140 141 ... 164 165

Service Source 1
iMac (Flat Panel) 2
Power Mac G4 - 1 2
Take Apart 3
Service Stand 4
User Access Plate 6
Memory, SO-DIMM (user 10
Procedure 11
Bottom Housing 13
RJ-11 Modem Filter Board 19
Part Location 21
Preliminary Steps 21
Memory (factory-installed) 23
Battery 25
Logic Board 27
(an exception would be 30
I/O Port Covers 31
Thermal Pad Installation 33
AC Line Filter 35
Power Supply 45
Optical Drive Door 50
5. Open the door open 53
Optical Drive Door 53
Speaker, Internal 55
Power Supply Insulators 59
Fan Gasket 63
Cap, Neck Spoke Retainer 65
Blind Mate Connector 68
Chassis (Faraday Cage) 70
Display, Flat Panel 78
Display, Flat Panel 83
Inverter 84
Antenna, Wireless 86
Panel Shield 88
Back Cover, Display 92
Neck Assembly 94
7. Attach the speaker 99
Base Reassembly 100
Base Reassembly 101
Troubleshooting 111
General Information 112
Block Diagram 114
Logic Board, Top 115
Logic Board, Bottom 116
I/O Ports 117
Service Cables 117
The PMU Chip 118
General Information 119
Power-On Self Test 120
Logic Board Battery 121
Thermal Paste Application 122
Symptom Charts 125
No Power 126
No Video 128
Display 130
Hard Drive 132
Optical Drive 133
Sound Out 134
Sound In 135
Error Beep(s) 136
No modem dial tone 137
USB Printing Problems 139
Upgrades 141
Memory, SO-DIMM 142
Installing the Memory Module 146
Closing the Computer 148
AirPort Card 149
Opening the Computer 150
AirPort Card 151
Installing the AirPort Card 152
Exploded View 155
Base Unit 156
Display and Neck 157
Screw Matrix 158

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