Acer AT110 F2 Acer AT110 F2 Service Guide - Page 67

4. Hard disk drive has write error. 1. 2. 1. 2. Main board. Enter BIOS Setup and Load default settings. Hard disk drive. With the system power on, measure the voltage of hard disk LED connector. Hard drive LED cable. Hard disk drive LED fails to light, but system operates normally. CD/DVD-ROM Drive NOTE: Ensure CD/DVD-ROM drive is configured correctly in BIOS Setup, cable/jumper are set correctly and its laser beam is clean before diagnosing any CD/DVD-ROM drive problems. CD/DVD-ROM drive LED doesn't come on but works normally. CD/DVD-ROM drive LED flashes for more than 30 seconds before LED shutting off. Software asks to reinstall disc. Software displays a reading CD/DVD error. CD/DVD-ROM drive cannot load or eject when the system is turned on and its eject button is pressed and held. 1. CD/DVD-ROM drive 1. 2. 3. CD/DVD-ROM may have dirt or foreign material on it. Check with a known good disc. CD/DVD-ROM is not inserted properly. CD/DVD-ROM is damaged. 1. CD/DVD-ROM drive does not read and there are no messages are displayed. 2. 3. 1. 2. 3. Disconnect all cables from CD/DVD-ROM drive except power cable, then press eject button to try to unload the disk. CD/DVD-ROM drive power. CD/DVD-ROM drive CD may have dirt or foreign material on it. Check with a known good disc. Ensure the CD/DVD-ROM driver is installed properly. CD/DVD-ROM drive. Ensure the headphone jack of the CD/DVD-ROM has an output. Turn up the sound volume. Speaker power/connection/cable. CD/DVD-ROM drive. CD/DVD-ROM drive can play audio CD but no sound output. 1. 2. 3. 4. Video and Monitor Video memory test failed. Video adapter failed. 1. 2. 3. 1. 2. 3. 4. Remove all non-factory-installed cards. Load default settings (if screen is readable). Main board. Monitor signal connection/cable. Monitor Video adapter card Main board Display problem: - Incorrect colors No high intensity Missing, broken, or incorrect characters Blank monitor (dark) Blank monitor (bright) Distorted image Unreadable monitor Other monitor problems Display changing colors. 1. 2. 3. 1. Monitor signal connection/cable Monitor Main board "Monitor" Display problem not listed above 63