If you have a problem on your HP Pavilion ZD 7000 laptop and locate the problem would be the up-volume button, then you’ll need the maintenance manual and service guide to safely disassembly the netbook.
Preparation tools:
- USB Keyboard
- USB Mouse
- Solder
- Soldering Iron
- 2 inches of thin wire
- Multimeter
- Desoldering Braid
- Flux
- Precision Tweezers
- External Monitor
- Maintenance Manual
You must follow the instructions from 5.1 to 5.11, and remove all parts. You don’t need to remove the laptop feet, section 5.4. When you are ready, then install Hard Drive, memory, memory cover and hood fan. Continue with a USB keyboard, USB mouse, external monitor, after all have done power the laptop on.
Ground one side of the volt meter and check the voltage at pins 1 and 2 on the DOWN volume button. You can get 1.4 on both feet. Check the voltage of pin 1 and 2, the Mute button. May, 5 / 4 on two feet. Check the voltage of pin 1 and Volume 2, on the sidelines. Cars 5 / 4 on two pins as well. Now, power the netbook down.
The voltage at pin 1 on the button band needs to to be 5.4 volts. Voltage is lost somewhere on the system of setting the edge of the button and the Mute button. You can remove all three buttons on the system board, because you can not test, but the system board, and it is very difficult to return. Next solder a wire to pin 1 on the tape touches and 2-pin connection for the MUTE button.
After switching on the laptop, now you have the volume on your computer is working.
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