Question about NEC DTU 8D-2 Corded Phone

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My led screen shows sys, sta, up, down

How do i clear this from the screen.. I don't use these keys.

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Sorry, but these softkeys are fixed in the display of an idle phone. They cannot be removed.

Posted on Jan 13, 2009


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


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1 Answer

Power and opc bottom blinking, tv won't come on

Sharp LED/LCD EEP cleared Step 1 Remove Mains Plug 2 Press On/Off Switch from LED/LCD Panel 3 Press Ch Down & Input Switch together and plug in mains cord 4 LED/LCD will start 5 "K" will appier on Screen 6 Press Ch Down & Vol Down from LED/LED Panel 7 1/9 Page will appier on Screen 8 Go to 9/10 page by pressing Up & Down arrow of remote 9 Select EEP Cleared 10 Press ok button from remote 11 On Screen dispay EEP running 12 Remove Mains Plug after complete EEP Run 13 Restart LED/LCD

Jan 08, 2016 | Sharp Televison & Video

1 Answer

Have a sta rite cartridge with very clear water but the air bleed filter keeps getting clogged

you are missing the screen filter on the top of the long plastic tube

Jul 22, 2014 | Sta Rite Pool & Spa

1 Answer

Hp 450

HP Support > HP 450 Notebook PC > Manuals downlaod page >

Scroll down to the subheading - User Guide
Click on the appropriate Windows operating system you are using,
Windows 7, or Windows 8.

Both User Guides are PDF files.
The computer you are using now has Adobe Reader on it, which uses PDF files.
Allow the PDF file to download all the way.

Then go to the Top Left corner, and hover your mouse cursor on it.
You will see > Toggle Sidebar < will briefly appear.
Left-click on Toggle Sidebar

There will now be two icons;
Show Thumbnails on the left, and Show Document Outline on the right.......
Click on > Show Document Outline.

Scroll down the list. Click on the subheading >
Using the action keys.
(The Action keys are the F keys at the top of the Keyboard.
F1 through F12)

Here we see you hold down on the Fn key, (Bottom of Keyboard, second key from Left); and AT THE SAME TIME, tap on the F3 key. The F3 key is the Increase Brightness key.

Does not work?
Then you have a problem with the Backlight, in the LCD screen.

A primer before I go on........

An LCD screen does not produce light. It needs an additional light source.
A Backlight is the additional light source.

A Backlight can be a CCFL, (Or more than one), or a series of LED's.
(Light Emitting Diode)

A CCFL is a Cold Cathode Fluorescent Lamp. (Bulb)
Similar to Fluorescent lighting used in homes, and businesses; but on a MUCH smaller scale.
Average thickness is 2mm. That is a little larger than 1/16th of an Inch.
Average length is almost as long, as the LCD screen is in height.

CCFL backlighting uses a Screen Inverter.
LED backlighting GENERALLY does not use a screen Inverter.
(First models with LED backlighting seemed to use a screen Inverter. Newer models do not)

Your HP 450 Notebook PC uses LED backlighting.
Here we can see an LCD screen replacement example,

NOTE -> Backlight type: LED
It does NOT use a screen Inverter.
How do I know? I'm looking at the Service Manual right now.
(I use two monitor screens)

You can also look at the Service Manual. It's Free, and available in the Manuals download page where you started.

On the Manuals download page, scroll down to the subheading >
Service and maintenance information.
Click on the blue >
HP 450 Notebook PC and HP 455 Notebook PC - Maintenance and Service Guide (26 Apr 2013)

Page 31 - Display assembly subcomponents

The LED backlighting is built into the LCD screen.
To replace the backlight, you replace the LCD screen.
Need step by step guidance with this, please post back in a Comment.

Hello from the USA.

Jul 08, 2013 | HP Computers & Internet

1 Answer

Mem cleared Changed out the batteries and received a messege mem cleared and nothing will work.

Follow this steps to resolve this problem:

1. Press ON to turn calcilator on

2. Press 2nd and then press + key button. TI- 81 displays RESET menu

3. Press 2 to select the RESET, the second item in the RESET menu. The display shows the message Mem cleared. Press CLEAR to clear the screen

If you cannot see anything on the screen, you may need to adjust the graphing TI- 81 calculator contrast:

-To darken the screen, press and release 2nd key, and then press and hold up-arrow key until the display is sufficiently dark

- To lighten the screen, press and release 2nd key, and then press and hold down-arrow key until the display is sufficiently light

Aug 22, 2012 | Texas Instruments TI-81 Calculator

1 Answer

Our spa heater has no lights on and will not turn on. When I reset the breaker all the lights come on and it shows 180 in led display and then r 8, then shuts itself off.

If one of my customers had this issue with their heater I would call the Sta Rite technical support at 888-782-7483 and they would likely be able to help you diagnose this issue.

Please let me know how this works out and ask subsequent questions. Thank you.

Sep 02, 2011 | Sta Rite Sta-Rite Max-E-Therm High...

2 Answers

I have vx510 and i cannot dial up to server how can i setup the phone number on the vx510 to dial the server and how to configure.

SYS MODE EDIT G6 PASSWORD:Key in 1, Alpha, Alpha, 66831 and press [Enter]:SYS MODE EDIT G 6
*GO Key [F2]
F:IMM.OUT________ Value [F3]
Press [Enter] until you come to Phone1. Or select Key [F2] and enter Phone1 and press [Enter]. You may then have to acknowledge a new key.SYS MODE EDIT KEY
PHONE1 Key [F2]
9,18884659020 Value [F3]
Select Value [F3]. SYS MODE EDIT G 6
VALUEUse the Yellow [Backspace] key to clear out any value, key in the Authorization Number ( THE PHONE # HERE) and press [Enter].SYS MODE EDIT KEY
*GO Key [F2]
F:IMM.OUT________ Value [F3]
Press [Enter] until you come to Phone2. Or select Key [F2] and enter Phone2 and press [Enter]. You may then have to acknowledge a new key.SYS MODE EDIT KEY
PHONE2 Key [F2]
9,18886032312 Value [F3]
Select Value [F3]. SYS MODE EDIT G 6
_________________Use the Yellow [Backspace] key to clear out any value, key in the Authorization Number ( PHONE # HERE and press [Enter].SYS MODE EDIT KEY
*GO Key [F2]
F:IMM.OUT________ Value [F3]
Press the Red [X] key 2 times.SYS MODE MENU 3
Select the up arrow at the bottom of the display 2 times.SYS MODE MENU 1
Select Restart [F4]. I HOPE THIS HELP : - )

Apr 11, 2011 | VeriFone Omni 3700

1 Answer

Sta rite heater won't fire. Control board only shows green LED lights. Prior to not firing water temp was 120 degrees. Almost burnt my foot off. Next day heater did not fire at all. Where can I go to...

Could be your heat sensor has gone bad. follow the wires for the sensor from the board to the water manifold. Then simply unscrew the old one and put a new one in. Do this with the system off, good luck.

Sep 17, 2010 | Sta Rite STA-RITE CONTROL BOARD KIT -...

2 Answers


You are having what they call the Blue Screen Of Death. Your file system has become corrupted. You need to reinstall your operating system.

Apr 03, 2009 | Sony VAIO VGN-RB39C PC Desktop

1 Answer

White screen power down, "end-power" key not working; sticky

take the phone to a mobile service center and have them reflash the phone.

Sep 07, 2007 | Motorola Mobility RAZR V3

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