No Sound From Headphones; Video And Monitor Problems - Dell EC280 Owner's Manual

ADJ U S T T HE W I NDOW S VOLUME C ONTR OL — Click or double-click the speaker icon in the
lower-right corner of your screen. Ensure that the volume is turned up and that the sound is not muted.
DI SC ONNECT H E AD PH ONES F RO M THE H E AD PH ONE CO NNECTOR — Sound from the
speakers is automatically disabled when headphones are connected to the computer's front-panel
headphone connector.
TEST THE EL ECTRICAL OUTLET — Ensure that the electrical outlet is working by testing it with
another device, such as a lamp.
ELIMINATE POSSIBLE INTERFERENCE — Turn off nearby fans, fluorescent lights, or halogen
lamps to check for interference.

No sound from headphones

CHEC K THE HEADPHONE CABLE CONNECTI ON — Ensure that the headphone cable is securely
inserted into the headphone connector (see "Front View of the Computer" on page 11).
ADJ U S T T HE W I NDOW S VOLUME C ONTR OL — Click or double-click the speaker icon in the
lower-right corner of your screen. Ensure that the volume is turned up and that the sound is not muted.
ENSURE THAT THE CORRECT A UD IO S OL UT I ON I S ENA BL E D IN T H E BI O S S E T U P
PRO GR AM — See "System Setup" on page 54.

Video and Monitor Problems

CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions located in
"Safety, Environmental, and Ergonomic Instructions" on page 48.
NOTE:
See the monitor documentation for troubleshooting procedures.
35
Solving Problems