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Hisense 50k23dg backlights are off and voltage test from led driver is zero.

Posted by princeodb on


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  • 3,325 Answers

Chances are the power supply is fine and you have shorted lamps in the panel

Posted on Apr 20, 2018

Testimonial: "I see what you mean. I used my Sperry, Cen-Tech and my trusty old analog GE just in case. I'm testing the LEDs right now anyways. Might as well check."

  • princeodb Apr 20, 2018

    This is what's confusing to me. I tested the power lines going to main board, and both sockets test good. The led driver socket is zero. Wouldn't it be shooting up and down or at least showing some voltage? I've been searching for which components effect the led driver power and I can't find. I'd rather be able to check this section before digging into the led strips. Hisense really makes it difficult. I haven't had these problems repairing other tvs.

  • Larry Apr 20, 2018

    Unhook the lines going to the panel and connect a meter with a high low max min setting (like a fluke)and set it on high or max and you should see voltage if you test it this way, a regular meter may not see the spike as it only lasts a fraction of a second, if you don't see anything at all then yes I would be looking at the power board...I replace one power supply with no backlights for every 15 to 20 sets I change the lamps on



5 Related Answers


  • 127 Answers

SOURCE: Sound but no picture. No backlight present. No VLED_VCC Voltage from PSU

For sure is the power supply can you replace the module?

Posted on Nov 01, 2012


The Knight

  • 76798 Answers

SOURCE: power supply problem

Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.

Posted on Feb 01, 2015


The Knight

  • 76798 Answers

SOURCE: 47' (sic) LED TV, model number m470vse. Why doesn't the backlight work?

Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
In some models of LCD TVS; the backlight inverter and its T'Con board will be a part of the panel itself, and will be a built-in type inside the LCD panel. If so, they can't be replaced. In this case; a panel replacement is the only repair. For some other models, the backlight inverter section circuit will be a part of the main power supply regulator [SMPS]. To such sets, the power supply section circuit too should trouble shoot. Contact any service technician. The circuit will differ with models and versions.

Posted on May 30, 2015



  • 132 Answers

SOURCE: On my Hisense 50K23DG LED TV, I have sound but no picture.

Hisense TV's usually use PCB Boards by Vestel and not Hisense themselves, have a look at: Vestel Help If the Boards in your Hisense match this Board/Part Number format at least you'll know what to search for, replacing the power supply will not help unless the process has been incorporated into the power supply and that is not known for certain yet
Good Hunting

Posted on Jan 13, 2016


The Knight

  • 76798 Answers

SOURCE: Hisense tv 55k610gwn, 11 light flashes error code. All leds flash for logo, then no video. Led drive voltage 200+ dc. Power supply or leds?

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

Posted on Oct 18, 2016

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Have hisense mod 50k23dg Black with flashlight Has audio..cant see backlights. Replaced t-con

Hello William, for what you say, you have a problem in backlighting
It can be the source that feeds the LEDs or that the lighting LEDs are wrong
the solution, replace the led strips, that do not work,
Correct solution, change all the LED strips of the backlight
I send you a video where they show the procedure
I hope you can solve the problem
Greetings Franco Dosil

Hola William, por lo que cuentas, tienes un problema en la retroiluminacion
Puede ser la fuente que alimenta a los Leds o que los Leds de iluminaci?n est?n mal
la soluci?n, reemplazar las tiras de led, que no funcionen,
Soluci?n Correcta, cambiar todas las tiras de Leds de la retroiluminacion
Te env?o un v?deo donde muestran el procedimiento
Espero puedas resolver el problema
Saludos Franco Dosil

LCD tv Hisense model 50K23DG. No picture, No sound, No backlight. Voltage all look good. When I press power, the red light flashes 6 times. I am suspect its an LED failure.

Hello Kenpappas, for what you describe, it would seem like a backlighting problem
questions if you can have a bad led ?, if many times a Led, is the one that proboca the failure
The correct solution from my point of view is, replace, all the Leds
As it is not practical to replace each led in the strips
It is more practical and simple, replace the full strips of leds
I send you a video, in which they show, the procedure of replacing the LED strips on a Hisense TV
I hope you can solve the problem
Greetings Franco Dosil

Hola Kenpappas, por lo que describes pareceria problema de retroiluminacion
preguntas si puedes tener un led mal?, si muchas veces un Led, es el que proboca la falla
La solucion correcta desde mi punto de vista es, reemplazar, todos los Leds
Como no es practico reemplazar cada led en las tiras
resulta mas practico y sencillo, reemplazar las tiras completas de leds
Te envio un video, en el cual muestran, el procedimiento de reemplazo de las tiras de Leds en un televisor Hisense
Espero que puedas resolver el problema
Saludos Franco Dosil

I have a HISENSE 32 LED TV, MODEL #32K20DW -A, SER #32J141913H05831.

If it was me i would check the voltages to the back-lights first and if the voltages are ok i would look at testing the led strips them selfs but if you have never done this before i would recommend taking it to an engineer but if the voltages are not ok change the power board.
Hope this helps.

I have a Hisense 55" model #50K23DG . The screen went out but the sound is perfectly clear. You can only see the image when you put a flashlight up against the screen. What could be the problem?

i assume this is an lcd, not led tv. the flourescent backlighting's inverter unit has gone out. its usually a seperate ic card, so it is repairable, if you can source the part cheap

My Hisense 50K23DG T.V. wont turn on?

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
If blinks continue without any pause, the main board is faulty.

On my Hisense 50K23DG LED TV, I have sound but no picture.

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Where is the Hisense 50K23DG Backlight Inverter located?

Hi, The part number for this inverter is: 167210, RSAG7.820.5463,
it will be printed on the board somewhere perhaps on a sticky label, have a good search around all the boards if you are unfamiliar with the set. If its any help start with the smaller Boards first, the largest will be Main AV and the Power Supply

How to fix my LED LCD tv

Hi check the links hope it will help you
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience

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