Acer Veriton 7800 Veriton 5800/6800/7800 Service Guide (Gigabyte MB) - Page 84

Error Symptom CD/DVD-ROM drive does not read and there are no messages are displayed. Action/FRU 1. CD may have dirt or foreign material on it. Check with a known good disc. 2. Ensure the CD/DVD-ROM driver is installed properly. 3. CD/DVD-ROM drive. 1. Ensure the headphone jack of the CD/DVD-ROM has an output. 2. Turn up the sound volume. 3. Speaker power/connection/cable. 4. CD/DVD-ROM drive. Real-Time Clock 1. Ensure the information in the Standard CMOS Feature of BIOS Setup is set correctly. 2. RTC battery. 3. Main board Audio 1. Speaker power/connection/cable. Modem CD/DVD-ROM drive can play audio CD but no sound output. Real-time clock is inaccurate. Audio software program invokes but no sound comes from speakers. Modem ring cannot wake up system from suspend mode. 1. For the External Modem, make sure Power on By Ring in BIOS Setup or Power Management is set to Enabled. For the PCI modem, make sure Wake up by PCI card is set to Enabled. 2. If PCI modem card is used, reinsert the modem card to PCI slot firmly or replace the modem card. 3. In Win 98, ensure the telephone application is configured correctly for your modem and set to receive messages and/or fax. 1. Ensure the modem card is installed properly. Data/fax modem software program invokes but cannot receive/send data/ fax Fax/voice modem software program invokes but has no sound output. (Data files are received normally; voice from modem cannot be produced, but system sound feature works normally.) Video memory test failed. Video adapter failed. 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. Ensure the modem voice-in cable from modem adapter card to main board Video and Monitor 1. Remove all non-factory-installed cards. 2. Load default settings (if screen is readable). 3. Main board 1. 2. 3. 4. Monitor signal connection/cable. Monitor Video adapter card Main board 1. Monitor signal connection/cable 2. Monitor 3. Main board 83 Chapter 4