First let me say “I LOVE THIS SITE!”. I have the dv7000z 1000 and the issue was a blinking power light in front. No light at the side connector power. Bought a new power supply and same issue. I sent the board in to one of these ebay “will repair your hp motherboard” place...
To make sure that inverter gets power from the motherboard (via the LCD cable), you can test it with a voltmeter. In my case I connected the “+” lead of the voltmeter to the pin 1 and the “-” lead to the ground trace around the screw hole. I got about 19.4V DC on that s...