Control Panel Assembly (Service-only

Procedure)

113

Removing the Control Panel Assembly

113

Installing the Control Panel Assembly

115

Power Distribution Board

116

Removing the Power Distribution Board

116

Replacing the Power Distribution Board

118

System Board (Service-Only Procedure)

118

Removing the System Board Assembly

119

Installing the System Board Assembly

121

4 Troubleshooting Your System . . . . . . . . 123

Safety First—For You and Your System

123

Start-Up Routine

123

Checking the Equipment

124

Troubleshooting External Connections

124

Troubleshooting the Video Subsystem

124

Troubleshooting the Keyboard

125

Troubleshooting the Mouse

126

Troubleshooting Serial I/O Problems

126

Troubleshooting a Serial I/O Device

127

Troubleshooting a USB Device

127

Troubleshooting a NIC

129

Troubleshooting a Wet System

130

Troubleshooting a Damaged System

131

Troubleshooting the System Battery

132

Contents

7

Page 7
Image 7
Dell R300 owner manual Control Panel Assembly Service-only, 113, 116, 123, 124, 129