Sun Microsystems 60 service manual Video Output Failure, Disk Drive or CD-ROM Drive Failure

Action

Press the keyboard power-on key and watch the keyboard. The keyboard LEDs should light briefly and a tone from the keyboard should be heard. If a tone is not heard or if the keyboard LEDs do not light briefly, the system unit power supply may be defective. See Section 4.4, “Power Supply Test” on page 4-5.If a keyboard tone is heard and the keyboard LEDs light briefly but the system unit still fails to initialize, see Section 3.8, “Initializing Motherboard POST” on page 3-23.

4.2Video Output Failure

This section provides video output failure symptom and suggested action.

Symptom

No video at the system monitor.

Action

Check the monitor AC power cord. Ensure that the AC power cord is connected to the monitor and to the wall receptacle. Verify that the wall receptacle is supplying AC power to the monitor. Check the video cable connection between the monitor and the system graphics card output port at the rear of the system. Check that the CPU module is properly seated. If the AC connection to the monitor is correct, the video cable is correctly connected, and the CPU module is properly seated, the system monitor or the system graphics card may be defective. Replace the monitor or the graphics card.

4.3Disk Drive or CD-ROM Drive Failure

This section provides hard drive and CD-ROM drive failure symptoms and suggested actions.

Chapter 4 Troubleshooting Procedures 4-3