Apple Personal LaserWriter LS Specifications download pdf (Page 82)

Take Apart I/O Board (LS) - 37

1 Disconnect the cable

from connector J803 on

the I/O board.

2 Remove the three screws

that secure the I/O board

in place.

3 Holding the board only

by the edges, disengage it

from the I/O bracket.

Gently lift straight up,

and disconnect the I/O

board from the

controller board.

I/O Board

J803

1 2 ... 77 78 79 80 81 82 83 84 85 86 87 ... 217 218

PLW SC/NT/NTR/LS 1
Product Information 3
Paper Paths 4
LS–LS/L Identification 5
Sensing System 6
PLW SC/NT/NTR/LS Basics - 6 8
PLW SC/NT/NTR/LS Basics - 7 9
PLW SC/NT/NTR/LS Basics - 8 10
PLW SC/NT/NTR/LS Basics - 9 11
PLW SC/NT/NTR/LS Basics - 10 12
PLW SC/NT/NTR/LS Basics - 11 13
Startup Test Pages 14
PLW SC/NT/NTR/LS Basics - 13 15
SC Startup Test Page 16
Service Test Page 17
SC, NT, NTR 18
Speciﬁcations 21
Intro Dates 23
Logic Board 24
Performance 26
Built-In Fonts 28
Environmental 29
Electrical 30
Physical 31
Troubleshooting 32
Status Panel LEDs 33
Capacitor Discharge 35
Capacitor C212 37
(C209 on LS/L) 37
LS Error Messages 38
Roller Diameters 39
Drum Check 41
Flowcharts 42
Personal LaserWriter SC/NT 43
Wiring Diagram 43
Personal LaserWriter LS 44
Wiring Diagram 44
Take Apart 45
Top Cover 46
Front Cover 48
Front Door 50
Right Holding Notch 50
LED Cover 51
LED Cable 53
Cassette Feeder 54
Cassette 55
Pedestal Covers 56
Cassette Stop Cover 57
Right Bottom Cover 58
Microswitches 58
Left Bottom Cover 59
Roller Shaft 60
Cassette Pickup 64
Pickup Clutch Assembly 65
Setscrew E-Ring 65
Cassette Feeder Tray 71
Cassette Feeder Board 71
I/O Board (SC 72
NT, NTR) 72
I/O Board 73
I/O Shield 73
I/O Shield (SC 75
End Plate (SC 77
End Plate 78
I/O Shield (LS) 79
I/O Board (LS) 81
End Plate (LS) 83
PCB Shield 85
Duct Plate 86
Serial Controller 88
Take Apart Fan - 51 96
This topic applies to all 96
Before you begin, remove 96
Sensor Mounting 99
Density-Adjusting 101
Connector J213 102
Density-Adjusting Board 102
Connector 102
Fan-and-Sensor 103
Interconnect Board 106
DC Controller 108
±Warning: Never 109
Interconnect Mount 111
Retainer 111
DC Controller Board 111
Mount Plate 112
Mounting Plate 116
Cable Retainers 116
Power Supply 117
(SC, NT, NTR) 117
Cable Retainer 118
Power Supply (LS) 120
Power Supply (LS/ 123
Serial Controller Board 124
High-Voltage 126
High-Voltage Power Supply 127
Cable Connector 127
Laser Assembly 129
Main Motor 131
Lens and Scanner 133
Assemblies 133
±Warning: Always replace 134
Beam Detect 135
Mirror Screw 135
Focusing Lens 135
Lens Assembly 135
Drive Assemblies 137
Grounding 138
Cable Clamp 139
Drive Assembly 139
5 Remove the three 140
Feeder Assembly 141
Access Panel 142
Sensor Connector 143
White Gear 144
Fuser Assembly 145
Face-Down 146
Delivery 146
Assembly 146
Fuser Heater Bulb 148
1 Remove the gold-colored 149
Left Connector Bracket 150
Retaining Spring 152
7 Remove the two black 153
Fuser Bulb 154
Left Connector 154
Fuser PCB 155
Rod Assembly 157
1 Remove the screw that 158
Contact Assy 160
Contact Assembly 162
Power Supply Cable 162
Mounting 162
Face-Up Delivery 163
2 Lift out the face-up 165
Face-Up Cover 166
Tension Spring 167
1 Swing the face-down 170
Face-Down Delivery Assembly 171
Separation Pad 172
Transfer Guide 174
Transfer Roller 176
Transfer Roller Mount 177
Pickup Roller 178
1 Remove the three black 179
Front Access Door 180
8 Remove the screw that 184
9 Disconnect connector 185
J101 from the power 185
Plastic Pin 186
Multipurpose 187
Cable Assembly 187
Pickup Drive Gear 189
Grounding Cable 190
Solenoid Screw 190
Sensing Lever 196
Paper-Sensing Arm 197
Paper-Sensing 197
Upgrades 198
NTR ROM 199
Additional Procedures 201
Voltage 202
Conversions 202
Nip Width Measurement 204
Cleaning Page 207
Adjustments 210
Registration 211
Adjustment 211
Leading Edge of Paper 213
Test Page Pattern 213
Refurbishment Kit 215
Exploded View 216
Exploded View 1 217
Exploded View 2 218

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Apple Personal LaserWriter LS Specifications Page 82

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