Having problems with your HP W22 LCD Monitor ?

Make/ Model: HP w22 Service Manual or repair

\015 Make/ Model: HP w22Regulatory Model: HSTND-2241-TProduct Number: RG556AASN: CNT704Z17QDate of Manufacture: January 2007Assembly Number: 434000-001Rev: CTM003Problem: when I turn the monitor on I can see a display for about 2 seconds. The display disappears. If I turn the monitor off, then on, I can see the display for about two seconds, then it disappears again. The cycle continues. The symptom is the same with no signal input, and with input selected for VGA or for DVI.If I shine a flashlight into the screen I can see a very faint display. I believe this indicates a backlight issue. I think I have this localized to the feedback section of the inverter section of the power supply/inverter board (PWB-1057-04). The problem now is that the monitor is out of warranty and HP will not support it. They refuse to sell me the circuit board, any tech data, or even to direct me to a repair facility that can fix the board. They won't tell me who the OEM is so that I can ask them for the tech data. All they will offer me is a discount on the purchase of a new monitor. Talking with HP was like trying to deal with Microsoft. All their people were courteous, friendly, and provided no useful information.Can anyone help me find a service/repair manual for this monitor?Can anyone help me find a replacement power board?Thank you all in advance, for your assistance.Bill\015

Answers :

Make/ Model: HP w22 Service Manual or repair?\012 This trouble maybe power supply or inverter boards is defective.
\012 first you can test the voltage of the multr,and then check which part is defective.From Wisiny.com can find those parts
\012 if you have any question,please let us know email:[email protected],we sincerely hope we can help you!
\012 you can also check this boards whether suit you:
\012 490421200100R QLIF 041 HP 790421200A00R Power Supply Backlight Inverter
Hogwillie, Yes, I gave up on trying to get useful info from ANY lcd display manufacturer! Tell me some stuff will ya! Have you disassembled the unit yet? Did you find any SWOLLEN electrolytic filter capacitors? Have you checked ALL the solder joints for the components (through hole and surface mount parts) for "frosty" or "thermal fracturing"? I use an old WWII navy inspection microscope for that task. All the solder joints should be nice and brite, just shy of being "mirror finish" or polished chrome on a hog showbike! Let me know what you find. Also check for video clips at youtube if you are repairing this unit yourself. FYI visit www.ccl-la.com/badcaps.htm run by "buddymc" also from fixya and try the following www.badcaps.net and www.lcdparts.net I would like to know what u find wrong with ur boards. If you can't video tape your tear-down, at least do some digital stills documentation of your work. Use multi color sharpy markers to identify and match PLUGS to CONNECTORS. Makes reassembly a lot easier!! Bye for now. 12fixlouie aka louie12fix
Repair Help & Product Troubleshooting for HP W22 LCD Monitor

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