Apple Macintosh Performa 577 User Manual download pdf (Page 10)

Specifications I/O Interfaces - 5

I/O Interfaces

Serial

Two RS-232/RS-422 serial ports; mini DIN-8 connectors

SCSI

One SCSI parallel port; DB-25 connector

Connects up to six external SCSI devices

Apple Desktop Bus

Two Apple Desktop Bus (ADB) ports; mini DIN-4 connectors

Maximum of three ADB devices recommended

Maximum current draw: 500 mA

(Mouse draws 10 mA, keyboard draws 25 mA)

Sound

Sound-output port capable of delivering stereo sound

Sound-input port for monaural sound input

Front headphone jack capable of delivering stereo sound

1 ... 9 10 11 ... 161

Performa 500 Series 1
Product Information 3
Identifying Features 4
Speciﬁcations 5
Disk Storage 9
I/O Interfaces 10
I/O Devices 12
Environmental 16
Troubleshooting 17
Symptom Charts 19
Floppy Drive 26
Hard Drive 28
CD-ROM Drive 29
Peripheral 30
Miscellaneous 33
Take Apart 35
Rear Housing 36
Take Apart Fan - 5 40
Push out the two latches and 40
Analog Board 41
Take Apart Analog Board - 8 43
2 Disconnect the internal 43
Retainer 44
I/O Door 47
Drive Bezel 50
Take Apart Floppy Drive - 18 53
1 Push down the latch and 53
Connector 54
CD Connector 58
CD Audio Adapter 58
Take Apart Hard Drive - 26 61
Chassis Harness 64
Assembly 64
Harness 65
922-0557 68
EMI Shields 70
Speaker Assembly 71
Speaker Wires 72
Front Panel Control Board 74
Logic Board Connector 80
±Warning: Never use a 85
Take Apart CRT - 51 86
2 Lift off the CRT 86
Replacement Note: Be sure 86
Internal 87
Microphone 87
±Warning: This product 88
Front Bezel 90
Upgrades 92
Macintosh 93
Processor Upgrade 93
Installation Procedure 97
Overview 97
Remove the 68LC040 98
Processor from the 98
Logic Board 98
Removal Tool 99
Logic Board Socket 99
Install the 68LC040 101
Processor on the 101
Upgrade Board 101
Processor 103
Prepare the Upgrade 106
Installation 106
Fastener 108
Hook-and-Loop 108
Install the Upgrade 110
Logic Board and 114
Additional Procedures 115
Battery 116
Verification 116
Negative 117
Positive 117
Adjustments 121
Geometry 122
Vertical Center 124
Horizontal Center 125
Vertical Size 126
Horizontal Size 127
WARNING: 129
High Voltage Areas 129
Adjustment 130
Controls 130
Gray Bars 132
Contrast Up Button 132
All-White Screen 140
Light Meter Setup 142
Model L-248 146
Model 246 147
Convergence 148
Crosshatch I 149
Geometric 151
Distortion 151
Plastic Yoke Collar 156
Yoke Clamp 156
Exploded View 160
Exploded View 1 161

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Apple Macintosh Performa 577 User Manual Page 10

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