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Old 05-30-2011, 09:41 PM   #41
shipwise
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Default Re: HP W22 lights up then goes dark.

New user here!, I have four cfl in my view sonic, there is one cfl that seems to
cause the others to flicker and then go out, if I unplug one that I believe is bad I
have a bright screen but still goes out after 1-2 seconds with it unplugged , which suggest the the cfl is bad, but would simply unplugging the bad cfl allow the others to work with out shutting down after 1-2 seconds

Or must the fourth bulb be pressent and working, for it to stay on?

I did not want to buy a bulb just to see, since I already replaced cap's

Kind Regards,
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Old 05-30-2011, 09:51 PM   #42
PlainBill
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Default Re: HP W22 lights up then goes dark.

Quote:
Originally Posted by shipwise View Post
New user here!, I have four cfl in my view sonic, there is one cfl that seems to
cause the others to flicker and then go out, if I unplug one that I believe is bad I
have a bright screen but still goes out after 1-2 seconds with it unplugged , which suggest the the cfl is bad, but would simply unplugging the bad cfl allow the others to work with out shutting down after 1-2 seconds

Or must the fourth bulb be pressent and working, for it to stay on?

I did not want to buy a bulb just to see, since I already replaced cap's

Kind Regards,
The protection circuit will shut down the backlights unless all CCFLs are connected and working properly.

PlainBill
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Old 05-31-2011, 08:16 AM   #43
rash.m2k
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Default Re: HP W22 lights up then goes dark.

Hey mate, the pics on the first page looks suspicuously like my NEOVO monitor, could you please post a pic of the whole board.

Maybe I could buy a LCD with a cracked screen and save me some soldering! hehe
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Old 05-31-2011, 08:30 AM   #44
alexanna
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Default Re: HP W22 lights up then goes dark.

You would be surprised how many CCFL assemblies are interchangeable between monitors.
If you are working on a 22” monitor look for a true 22’’ screen, Not one that’s 21.5 and marketed as a 22”.
The other critical measurement is the thickness of the screen,most of the newer monitors are using a really thin screen where as some older monitors have a thick screen.
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