Question about Toshiba Tekbright 15" CRT Monitor

1 Answer

Dim monitor everytimt i turn on the computer the screen lights up and then goes dim after 2 to 3 secs but If i look hard i can still see everything on the screen and i just bought a new power supply for it the monitor is a maginnovision

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 748 Answers

Hi

You just bought a new power supply for the monitor? Did you set the B+ voltage to the correct settings. Rebuilt power supplies for CRT monitors are not set correctly at the factory. Use your schematic to determine the proper B+ and then set this under load.

Thanks

Posted on Jul 24, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert 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 repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Monitor comes on but the screen gets dark after a 3 sec


if the power indicator at the front panel stay lit but no screen display or black screen, it could be a sign of bad power inverter board or screen back light. now to ensure if it was the cause you can do a voltage checking, at this time you will need a digital tester. you need to know if their is a bl_on voltage at the power inverter board around 3-4.4v to turn on the inverter board that supply the back light.if the power inverter board has 12v dc and has bL_ON voltage then the cause will be a bad inverter board. you must check also for a dry joint connector going to back light.

Nov 15, 2012 | ViewSonic VG2030wm LCD Monitor

1 Answer

Screen goes black after 2 sec


The lightbulb high voltage power supply is detecting problem with the low voltage power supply or with one of the light bulbs and shutdowns in emergency. Open the monitor and check for inflated capacitors. Replace all capacitors even if only few are inflated. Light bulbs require further testing empowering them one by one with external high voltage por supply and their replacement is not easy. Have to open the LCD and then it's hard to clean the layers from the dust resulting bad spots on the image. Be careful and good luck.

Apr 08, 2012 | LG Flatron Computers & Internet

1 Answer

I have a Sceptre X7G-Naga VI 17 inch LCD Monitor When I turn the monitor on and boot the computer I get the red light for a sec then the blue light comes on I will also see windows booting up but the...


try with restarting computer & press F8 at the same time. u will see a menu where choose "safe mode" & start the computer. in safe mode see the display properties, set the refresh rate & resolution according to monitors specifications, apply & restart again. if that does not work, replace the main board of lcd monitor.

Aug 25, 2011 | Sceptre 17" LCD Monitor

1 Answer

I have a Sceptre X7G-Naga VI 17 inch LCD Monitor When I turn the monitor on and boot the computer I get the red light for a sec then the blue light comes on I will also see windows booting up but the...


try with restarting computer & press F8 at the same time. u will see a menu where choose "safe mode" & start the computer. in safe mode see the display properties, set the refresh rate & resolution according to monitors specifications, apply & restart again. if that does not work, replace the main board of lcd monitor.

Aug 25, 2011 | Sceptre X20G-Naga II 20.1" Flat Panel LCD...

1 Answer

Screen is dimmed for 2-3 secs then it goes black


The fault could be a faulty inverter or a faulty CCFL lamp.
The inverter supplies high voltage to the CCFL lamp, if faulty the CCFL lamp can flicker or not light up. The CCFL lamp is a mini fluro lamp, and flicks on and off when faulty especially as it ages.
Check out LCD Parts for service, parts, and DIY info Use this link to their WEB site :-
www.lcdparts.net

Oct 01, 2009 | Acer AL2223W 22" LCD Monitor

3 Answers

Monitor E172FP only fashes on then turns black.


its a bad solder/heat problem with the power board you need to repalce eaither the board or parts on the board the parts on the board are:

Q743 - FU9024N
Q741 - FU9024N
Q759 - 2SC5707
Q739 - 2SC5707
Q760 - 2SC5707
Q740 - 2SC5707

and part PF751 the black fuse - 3A 125V

i don't promise that this will fix it but its worth a shot

Apr 10, 2009 | Dell E173FPb 17" TFT LCD Monitor

1 Answer

Monitor turns off and is dim


replace pwr inverter board...
replace the video/keyboard as well...

Feb 08, 2009 | ViewSonic Optiquest Q9b 19" Flat Panel LCD...

1 Answer

Screen only stays on for 2 seconds at a time


just an update...I have fitted a new cable (pc to monitor) and it has been on for 2hrs now so fingers crossed!

Aug 19, 2008 | Philips 19 in. CRT Monitor

1 Answer

X20G-Naga III screen goes blank after 1-2 secs


most common lcd monitor break down, check all electrolytic capacitors for leakage and loose board solder specially on the ccfl inverter section.

May 31, 2008 | Sceptre X20g-Naga III 20.1" LCD Monitor

2 Answers

Monitor goes blank


Sounds like the back light inverter board is bad. It's a very common problem. LCD's use four small cold compact fluorescent bulbs to back light the display. (thats what gives the LCD it's brightness allowing you to see it) The inverter board runs these lights and when they go bad they will typically show symptoms like you have or the monitor power light comes on and you have either no display or a very dim display. If you ever have one that has no display but the power light is on you can check by shining a flashlight directly into the LCD from the front (right into the screen) if you can see an image then it's either the inverter board (most likely) or the CCFL bulbs have gone bad. The inverter board and CCFL's are replaceable. Good Luck, El Duderino

Nov 16, 2006 | Dell E153FPc 15" TFT LCD Flat Panel...

Not finding what you are looking for?
Toshiba Tekbright 15" CRT Monitor Logo

122 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18394 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

k24674

Level 3 Expert

7993 Answers

Are you a Toshiba Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...