Unable to change from pressure control to volume control by pressing the pressure control button on the bird 8400 STi PC/VAPS ventilator. Is their a knack to pressing the pressure control button!?

Hi,

You may want to follow the step-by-step instructions posted below to hard reset you LG Nexus 4 when it becomes unresponsive. Please note that the phone will wipe all contents.

How to perform a hard reset when my LG Nexus 4 is unresponsive
1. Ensure the phone is off.
2. Press and hold the Volume down button and thePower button.
3. Scroll to Recovery mode by pressing theVolume down button.
4. Press the Power button.
5. Press and hold the Power button and then press the Volume down button.
6. Scroll to Wipe data/factory reset using theVolume down button.
7. Press the Power button.
8. Scroll to Yes -- delete all user data by pressing the Volume down button.
9. Press the Power button.
10. The phone will now wipe all contents.
11. Press the Power button.
12. The phone will now reboot to the initial setup screen.

For and SG controller use the following instructions to access factory setpoints which will allow you to change the pressure setting. Note : look at the metal data tag affixed to the compressor for the correct pressure setting. (eg: 125 psi) do not exceed the data tag pressure or premature damage to the compressor and personal injury may occur.

To access... Power must be applied to the
compressor with READY TO START showing in
the display.... press the center (MAIN MENU)
display button two times and then press the LOAD
button followed by the UNLOAD button, all within
three seconds.
To change settings... The values of the Factory
Setpoints can be changed using the same buttons
and procedures used to change the Operator
Setpoints. Refer to the Operator's Manual for
details.
To exit... Press either the STATUS or MAIN MENU
buttons. If no buttons are pressed within 30
seconds, the display will automatically return to
the Current Status screen showing Package
Discharge Temperature and Airend Discharge
Temperature

http://www.fixya.com/TipsAndTricks/preview.aspx?thid=4282412
Video card failure
Re-seat video card, if no change replace it.

you should press and hold the power button for about 10 seconds because you can't remove your battery while it hung and try to restore to the factory setting when it can power off
to do factory setting you can follow this step (restore to factory setting will erase all of your data going back to the first time you buy it)
1. press the volume up and power button at the same time
2. when you see the logo appearing release the power button but keep holding the volume up button
3. you can see displayed menu and use the volume up and down to select, then to reset to factory setting please select the option that labeled wipe data/factory reset using the power button

If you have the volume control which is controlled with a button or the ones you need to press to change the volume level. Then you have to clean it by opening the your laptop. Try to access the board where your buttons are connected. Clean it with a cloth and a lighter fluid. Lighter fluids are best because the evaporate fast.

This Dell Support, and the Service Manual for the Dimension 8400,

http://support.dell.com/support/edocs/systems/dim8400/SM/index.htm

In the Service Manual main menu, left-click on - Opening the Computer Cover

1) Computer off, and unplugged from power. (Always unplug the power cable from the surge protector. Then if the power cable needs to be removed from the computer, do so)

2) Remove all cables to the computer

3) Lay the computer on it's Right side.
(As you face the computer, your right side is the computers Right)

4) There is a Release button on the Top of the computer case, and a Release Button on the Bottom of the computer case.
These are located at the Rear of the computer.

The preferred method of opening the computer case, is to press one release button in at a time, and slightly lift up on the side of the computer case, where that release button is located near.

Then go to the other side of the computer case, press this release button in, and lift up on the computer case.

The computer case opens like a clamshell. The computer case is hinged at the front.

Example:
Computer laying on it's right side. Press the Top release button in, and lift up on the computer cover located near the Top.

Now press the release button on the Bottom. Lift the computer case up.

The computer case opens from the back, towards the front, like opening a car hood.

Click on the speaker icon in the lower right side of the screen, and set the volume control to high. If no help, do you have amplified speakers? Line or headphone outputs are too low to drive speakers directly.

I take it that you have no volume or audio at all coming from your STi, and that you have pressed the volume button to try to cycle up and down through the volume settings? If so, first lets try doing a factory reset which will resolve any corrupted memory settings. To do this, first power off your STi using its power button. With it powered off, hold down the volume and sensitivity buttons and while holding these two buttons down, press the power button. Release all three buttons as soon as "RESET" is displayed. After RESET was displayed, your STi should go through its normal startup sequence, with audio beeps and braps. If you here nothing, then your STi has a blown speaker and you will have to contact Beltronics to arrange for them to replace the bad speaker.

Most IBM / Lenovo Thinkpads have hardware volume control with apropriate buttons above the keyboard (volume up, down and mute). Gnome in Ubuntu is configured in such a way, that the keypresses are trapped (this is correct), apropriate volume window is displayed (correct) and Gnome volume control is modified. Last step is actually wrong - the keys in Thinkpads control the volume hardware directly, so every keypress turns the volume up/down regardless of sound card settings (in Ubuntu case - this would be Alsa mixer). Current behaviour results in volume being changed twice - for example if I press the volume up button, I get volume reduction via Gnome sound mixer plus volume reduction via hardware control. Effectively this creates an exponential (and not linear as it should be) volume change. In short - it is very difficult to control volume, especially relatively quiet sounds, with volume keys only.
The "patch" solution is to decouple Gnome mixer from hardware buttons. Of course it could be done manually, by deleting apropriate key actions in System->Preferences->Keyboard shortcuts, but this also disables windows showing volume. A better thing (but more complex) would involve reading /proc/acpi/ibm/volume and displaying the volume window according to this value at each volume button keypress.
I tested this on T21, T42 and Thinkpad 600. I guess only some R series notebooks (R31 etc.) would not be affected, as these do not have hardware mixer.
Steps to reproduce:
1. Press hardware volume key (eg. volume up) on a Thinkpad
2. Observe the volume change - it is changed in hardware mixer (correct) and in Gnome volume control (incorrect)

I hope this helps...