Acer Veriton Z291G Service Guide - Page 67

Real-Time Clock-related Symptoms Symptom/Error Real-time clock is inaccurate. Action/FRU • Ensure the information in the Standard CMOS Feature of BIOS Setup is set correctly. • RTC battery • Mainboard Audio-related Symptoms Symptom/Error Audio software program invoked but no sound comes from speakers. Action/FRU • Speaker power/connection/cable Modem-related Symptoms Symptom/Error Action/FRU Modem ring cannot wake up system from suspend mode. • For an 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. • If a PCI modem card is used, reinsert the modem card to the PCI slot firmly or replace the modem card. • In Win 98, ensure the telephone application is configured correctly for your modem and set to receive messages and/or fax. Data/fax modem software program invoked • Ensure the modem card is installed properly. but cannot receive/send data/fax Fax/voice modem software program invoked but has no sound output. (Data files are received normally; voice from modem cannot be produced, but system sound feature works normally.) • Ensure the modem voice-in cable from modem adapter card is connected to the mainboard Video and Monitor-related Symptoms Symptom/Error 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 Display changing colors. Action/FRU • Remove all non-factory-installed cards. • Load default settings (if screen is readable). • Mainboard • Monitor signal connection/cable • Monitor • Video adapter card • Mainboard • Monitor signal connection/cable • Video adapter card • Mainboard Veriton Z290G AIO Computer Service Guide 59