Sun Microsystems 220R service manual Diagnostics and Troubleshooting

6.10.2What Next 183

7.Diagnostics and Troubleshooting 185

7.1About Diagnostic Tools 186

7.2	About Power-On Self-Test (POST) Diagnostics 187
7.3	How to Use POST Diagnostics 188

7.3.1Before You Begin 188

7.3.2What to Do 189

7.3.3Results 189

7.4	How to Set Up a tip Connection		190
	7.4.1	How to Verify the Baud Rate	192
7.5	About OpenBoot Diagnostics (OBDiag) 192
	7.5.1	OBDiag Menu 193
	7.5.2	Configuration Variable 194
7.6	How to Use OpenBoot Diagnostics (OBDiag) 195

7.6.1What to Do 195

7.6.2OBDiag Tests 197

7.6.3PCI/Cheerio 197

7.6.4EBus DMA/TCR Registers 198

7.6.5Ethernet 199

7.6.6Keyboard 200

7.6.7Mouse 200

7.6.8Parallel Port 200

7.6.9Serial Port A 201

7.6.10Serial Port B 202

7.6.11NVRAM 203

7.6.12Audio 203

7.6.13SCSI 203

7.6.14All Above 203

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