Hp w2338h has no power - HP W2338H Monitor

Open Control Panel and from there, click "sound". Under playback, you can see the audio devices connected and you can right click on them and select enable/disable.

Is the picture still visible? If it is yes you just need to factory reset the monitor. If not, check your inverter.

If this is due to the capacitors failing, I'd advise not, unless you are competent in identifying and testing these. My advice is to take it to a reapair shop

ok , we've answer that question here , vast endless times.
all old monitors before magic year 2010 even go to sleep
all by them selves to save the pathetic, CCFL tubes insid it.

so learn to use the monitors OSD screen.
push the menu button there(real button)
see that? now turn off sleep.
i will now read the manual to you.
3 seconds latter (manualsdir.com)

page 33
turn off the time and all sleep function INSIDE the monitor
amazing no? RTM still works in the year 2018...

https://www.manualslib.com/download/71500/Hp-W2338h.html

It is most likely a bad power supply... I have had aboit 4 diff monitors do this to me... most common is under rated capacitors in the internal power supply... some times there could be a black light going out witch causes higher current draw on the power supply ( witch can take out the caps, fusses, transformers ( caps and transformers when they get week and bad can cause the buzzing sound ( on some times with a radio near buy then the monitor is acting up with blanking out and buzzine the radio will pop and buzz as well witch is a sign that there is arching going on IE. caps and transformer are most common for that )))

hope this info helps
kc7wzl

Hi there , Go to your PC settings , and Try turn Screen saver off , aswell as Sleep off... it is in your PC settings.
Good luck

Hi,

Press and hold the power button for atleast 30 seconds and it should work .Had worked for me all the best...

You may have failing components in the power supply.
Most common failure in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, falied inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what goes wrong: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further.

if are waranty try there

try going in to windows display propertys and click use this device