Dell UltraSharp U2412M User Manual page 44

Synchronizat ion Problem s Screen is scram bled or appears t orn
Safet y Relat ed I ssues Visible signs of sm oke or sparks
I nt erm it t ent Problem s Monit or m alfunct ions on & off
Missing Color Pict ure m issing color
Wrong Color Pict ure color not good
I m age ret ent ion from a st at ic im age left on t he Faint shadow from t he st at ic im age displayed appears on
m onit or for a long period of t im e t he screen
Pr odu ct Spe cific Pr oble m s
Spe cific Sym pt om s
Screen im age is t oo sm all I m age is cent ered on screen, but does not fill ent ire
viewing area
Cannot adj ust t he m onit or wit h t he but t ons on t he front OSD does not appear on t he screen
panel
No input signal when user cont rols are pressed No pict ure, t he LED light is blue
The pict ure does not fill t he ent ire screen. The pict ure cannot fill t he height or widt h of t he screen
N OTE: When choosing DVI - D m ode, t he Au t o Adj u st funct ion will not be available.
Un ive r sa l Se r ia l Bu s ( USB) Spe cific Pr oble m s
Spe cific Sym pt om s
USB int erface is not working USB peripherals are not working
High Speed USB 2.0 int erface is slow. High Speed USB 2.0 peripherals working slowly or not
working at all
D e ll™ Sou n dba r Pr oble m s
Com m on Sym pt om s
No Sound No power t o Soundbar - t he power indicat or is off
No Sound Soundbar has power - power indicat or is on
Dist ort ed Sound Com put er's sound card is used as t he audio source
Adj ust Phase and Pixel Clock cont rols via OSD.
Perform m onit or self- t est feat ure check and det erm ine if t hese lines are also in self- t est m ode.
Check for bent or broken pins in t he video cable connect or.
Run t he built - in diagnost ics.
N OTE: When using DVI - D input , t he Pixel Clock and Phase adj ust m ent s are not available.
Reset t he m onit or t o Fact ory Set t ings.
Perform Aut o Adj ust via OSD.
Adj ust Phase and Pixel Clock cont rols via OSD.
Perform m onit or self- t est feat ure check t o det erm ine if t he scram bled screen appears in self- t est m ode.
Check for bent or broken pins in t he video cable connect or.
Rest art t he com put er in t he safe m ode.
Do not perform any t roubleshoot ing st eps.
Cont act Dell im m ediat ely.
Ensure t hat t he video cable connect ing t he m onit or t o t he com put er is connect ed properly and is secure.
Reset t he m onit or t o Fact ory Set t ings.
Perform m onit or self- t est feat ure check t o det erm ine if t he int erm it t ent problem occurs in self- t est m ode.
Perform m onit or self- t est feat ure check.
Ensure t hat t he video cable connect ing t he m onit or t o t he com put er is connect ed properly and is secure.
Check for bent or broken pins in t he video cable connect or.
Change t he Color Set t ing Mode in t he Color Set t ings OSD t o Graphics or Video depending on t he applicat ion.
Try different Color Preset Set t ings in Color Set t ings OSD. Adj ust R/ G/ B value in Color Set t ings OSD if t he Color Managem ent is t urned off.
Change t he I nput Color Form at t o PC RGB or YPbPr in t he Advance Set t ing OSD.
Run t he built - in diagnost ics.
Use t he Power Managem ent feat ure t o t urn off t he m onit or at all t im es when not in use ( for m ore inform at ion, see
Alt ernat ively, use a dynam ically changing screensaver.
W h a t You Ex pe r ie n ce
Check t he Scaling Rat io set t ing in I m age Set t ing OSD
Reset t he m onit or t o Fact ory Set t ings.
Turn off t he m onit or, unplug t he power cord, plug it back, and t hen t urn on t he m onit or.
Check whet her t he OSD m enu is locked. I f yes, press and hold t he but t on above t he Power but t on for 10 seconds t o unlock ( for m ore inform at ion, see
Check t he signal source. Ensure t he com put er is not in t he power saving m ode by m oving t he m ouse or pressing any key on t he keyboard.
Check whet her t he signal cable is plugged in properly. Re- plug t he signal cable if necessary.
Reset t he com put er or video player.
Due t o different video form at s ( aspect rat io) of DVDs, t he m onit or m ay display in full screen.
Run t he built - in diagnost ics.
W h a t You Ex pe r ie n ce
Check t hat your m onit or is t urned ON.
Reconnect t he upst ream cable t o your com put er.
Reconnect t he USB peripherals ( downst ream connect or) .
Swit ch off and t hen t urn on t he m onit or again.
Reboot t he com put er.
Som e USB devices like ext ernal port able HDD require higher elect ric current ; connect t he device direct ly t o t he com put er syst em .
Check t hat your com put er is USB 2.0 - capable.
Som e com put ers have bot h USB 2.0 and USB 1.1 port s. Ensure t hat t he correct USB port is used.
Reconnect t he upst ream cable t o your com put er.
Reconnect t he USB peripherals ( downst ream connect or) .
Reboot t he com put er.
W h a t You Ex pe r ie n ce
Turn t he Power/ Volum e knob on t he Soundbar clockwise t o t he m iddle posit ion; check if t he power indicat or ( Blue LED) on t he front of t he Soundbar is illum inat ed.
Confirm t hat t he power cable from t he Soundbar is plugged int o t he adapt er.
Plug t he audio line- in cable int o t he com put er's audio out j ack.
Set all Windows volum e cont rols t o t heir m axim um .
Play som e audio cont ent on t he com put er ( i.e. audio CD, or MP3) .
Turn t he Power/ Volum e knob on t he Soundbar clockwise t o a higher volum e set t ing.
Clean and reseat t he audio line- in plug.
Test t he Soundbar using anot her audio source ( i.e. port able CD player) .
Clear any obst ruct ions bet ween t he Soundbar and t he user.
Power Managem ent
Possible Solu t ion s
Possible Solu t ion s
Possible Solu t ion s
Modes) .
Menu Lock ) .