First, Thank You Very Very Much for the wonderful help about opening HP w1907 and pointed out the capacitor changing thing. i am an engineer of electronics but only three or four things i opened & repaired by myself because i am in a cotton business now. i am using HP w1907 since last 4 years, just before 4 days it started black out problems when i log off from windows 8, i could log off but was not able to SHUT DOWN or RESTART because of the monitor black out, when i try to start the monitor from power button above the panel 6 to 7 times then only it could stay ON for SHUT DOWN or RESTART. then i googled, no help even from the HP site,i have seen many forums of other users who are suffering the same problem on HP site.then i started finding solution over here and i have luckily found your forum about opening it and changing the capacitor about which we doubt as not working, then yesterday i first opened the monitor as per your guidance, i opened every parts of the monitor. when i opened the power supply i saw 1000uF 25V 105C(little bigger) and 470uF 25V 102C(smaller)-2 Nos., then i went to a nearby electronics shop and purchased a soldering iron,flux,desoldering wik, and all the 3 capacitors. i found 85C capable instead of 105C & 102C,other values are same.i thought there is no problem in little tempreture difference characteristics. then came back home and changed all the 3 capacitors, i had a very good grip in soldering when i finished my studies in 1991, so perfectly done that. then fixed all the parts of the monitor carefully, switched ON. and all the BLACK OUTS were gone. i was sooooooo happy, now my monitor is working like a BRAND NEW one.
Thank You for sharing your HP w1907 repairing experience here, it really really helped me.
-SANJAY VACHHANI(INDIA)