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Back light - Posiflex Jiva 5800 All-In-One (tp5815r2w2k) Network Terminal

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If you are saying that your screen is dark/blank. Then yes the back light or the inverter is the likely culprit

Posted on Aug 27, 2010

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When I turn on the power the screen will light up briefly then go off, then the standby light goes on (red) and flashes in four times flash intervals


Hi,
4 blinks notifies the back light failure . could be the back light inverter board or faulty capacitor on power supply board.have added the image of back light inverter. Also added the picture of the power board. On the picture the capacitors marked with red should be replaced first. If shows the same complaint even after that then you have to change the back light inverter board.

Power supply

25849195-rpi3jfilu1hke134nfog5c4e-2-5.jpg

Back light inverter board
25849195-rpi3jfilu1hke134nfog5c4e-2-9.jpg www.electro-medical.blogspot.com

Sep 04, 2015 | Sony KDL46V2500 46 in. HDTV LCD Television

1 Answer

Light issues


I would check the ground connection on the back which could affect the lights not working

Apr 20, 2015 | Cars & Trucks

1 Answer

Solution for samsung monitor no screen light in display


bad either inverter board for screen back light or busted back light.you will need to remove back cover to access the inverter board and back light inside.the back light is covered with plastic and metal shield located at the top and lower portion of the screen panel display.

Sep 07, 2012 | Samsung Computers & Internet

1 Answer

The head lights are on but the back lights don't


Open the boot, then remove the cover of the back light then replace the bulb.

Sep 25, 2011 | 1989 Toyota Camry

1 Answer

No back light in display


The back light bulb is dead. Or check your phone settings, look out for display settings, select back light time/settings and see if the back light is turned off. And if not, the the back light bulb is dead for real.

Take care

Nov 19, 2009 | Nokia 1600 Cellular Phone

1 Answer

What is the tiny black button on the back of my black berry storm for? Its behind the back cover.


New Power / Lock button usage
Using the Power or Lock button on the top of the BlackBerry smartphone, you can perform the following tasks depending on the state of the BlackBerry smartphone:
State of the BlackBerry smartphone: Unlocked and the back light is turned on

Action: Press and release button.
Result: Locks the BlackBerry smartphone and turns off the back light.

Action: Press and hold button.
Result: Turns off the BlackBerry smartphone.
State of the BlackBerry smartphone: Unlocked and the back light is turned off
Action: Press and release button.
Result: Turns on the back light.

Action: Press and hold button.
Result: Turns on the back light and displays the power off prompt.
State of the BlackBerry smartphone: Locked and the back light is turned off

Action: Press and release button.
Result: Turns on the back light and displays the unlock prompt.

Action: Press and hold button.
Result: Turns on the back light and presents the power off prompt.
State of the BlackBerry smartphone: Locked and back light is turned on

Action: Press and release button.
Result: Presents the unlock prompt.

Action: Press and hold.
Result: Presents the power off prompt.

Oct 27, 2009 | RIM BlackBerry Storm 9530 Smartphone

2 Answers

I'm replacing the steerin column in a Geo Metro 1996. All lights work. The back lights stay on.


Sounds like you missed engauging and adjusting the neutral safety/ backup light switch.

But I do not know what you mean by back lights? Back up lights, rear tail lights, interior lights in the rear....???

Sep 19, 2009 | 1996 Geo Metro

1 Answer

Dark tft monitor


Hello atahirkhelii,

This is an indication that your back-light or inverter has malfunctioned. This problem is tricky, because if the back-light is a separate unit you will be able to repair this problem by replacing the back-light or one of its associative components, however if the back-light is part of the screen so as to make it one unit, then the repair job becomes cost prohibitive.

The troubleshooting process is as follows:

1) take the cover off of the screen panel and expose the back of the screen and the circuitry of the main board.

2) with a multimeter measure the test point voltages as compared to the schematic and note any abnormalities.

3) using the schematic as a guide determine if the back-light can be turned on manually (this is just a test to see if the back-light or its circuitry is the problem)

4) if the back-light circuitry is faulty replace the malfunctioning components,if the back-light is faulty replace the back-light (if possible, because the back-light may be part of the screen)

5) If you can replace the back-light order it from the manufacture to insure compatibility.

6) if you can not replace the back-light because it is part of the screen, contact the manufacture and ask them the cost of a new screen/back-light combination.

7) replace the components, close the unit back up and then do a 48hour burn it test on the player.

I hope this helps,

Thank you,

Shuttle83

Oct 08, 2008 | Mintek MDP-1810 Portable DVD Player

1 Answer

Troubleshooting 1984 chrysler back brake lights


There is a contact (not short) between wire to brake light and to back light on passenger side, when you press the pedal, electricity is absorbed by barake light bulb and back light dim out. Check cables and connectors, if necessary follow back cables to battery.
If the contact is a short the back lights fuse will blow, I think it is a contact between same polarity cables, not a short.

Regards

May 16, 2008 | 1984 Chrysler Fifth Avenue

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