Acer Z3751, Z3750, Z5750, Z5751 manual Real-Time Clock-related Symptoms Symptom/Error Action/FRU

Real-Time Clock-related Symptoms

Symptom/Error		Action/FRU
Real-time clock is inaccurate.		•	Ensure the information in the Standard CMOS Feature of
			BIOS Setup is set correctly.
		•	RTC battery
		•	Mainboard
Audio-related Symptoms
Symptom/Error		Action/FRU
Audio software program invoked but no		•	Speaker power/connection/cable
sound comes from speakers.
Modem-related Symptoms
Symptom/Error		Action/FRU
Modem ring cannot wake up system from		•	For an external modem, make sure Power on By Ring in
suspend mode.			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		•	Ensure the modem voice-in cable from modem adapter card
invoked but has no sound output. (Data			is connected to the mainboard
files are received normally; voice from
modem cannot be produced, but system
sound feature works normally.)
Video and Monitor-related Symptoms
Symptom/Error		Action/FRU
Video memory test failed.Video adapter		•	Remove all non-factory-installed cards.
failed.		• Load default settings (if screen is readable).
		•	Mainboard
Display problem		•	Monitor signal connection/cable
•	Incorrect colors	•	Monitor
•	No high intensity	•	Video adapter card
• Missing, broken, or incorrect characters		•	Mainboard
•	Blank monitor (dark)
•	Blank monitor (bright)
•	Distorted image
•	Unreadable monitor
Display changing colors.		•	Monitor signal connection/cable
		•	Video adapter card
		•	Mainboard

80 Aspire Z3750 / Z3751 / Z5750 / Z5751 AIO Computer Service Guide