Question about Vizio GV42L 42 in. LCD Television

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Got sound but no picture

Hi I understand that the most common problem is the back light, does anyone have experienced the same problem, is the back light and the board is one part? can you shed some light??? Thanks

Vizio VU42LFHDTV10A is the model

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Check to make sure you do have 24vdc feeding the inverter board, there are surface mounted fuses on the inverter bd.
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Posted on May 28, 2010

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The LCD inverter backlight board.It a 2 long boards connected by a fiber opic cable to form as one big long borard.

Posted on May 27, 2010

Testimonial: "I replaced both inverter boards now I have light but still no video. I do hear a hissing sound coming from the top board on the back of the tv is in center upper part protected by cover. Any one have any recommendation?? Thanks"

  • Chi Chu Jun 10, 2010

    This board have the coalax incomming signal cable connected to it than is a Tuner board.If the ac power cord plug into,than it the Power Supply Board.No,ac power cord or coalax incomming signal cable to cable to connected to it.

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Posted on Jan 02, 2017

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1 Answer

Which part do i need for my 60 in samsung


Hi Rosemary,
Back light failure is a common problem with these sets. If it is so, I am afraid you can not repair it by yourself. You will need a qualified and experienced technician to handle it.

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Back-light problem. 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.
http://electronicshelponline.blogspot.com/

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Sounds like some problem with its back-light. Contact any serivce technician. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product by anyone else could result in serious injury or death. If you are not familiar with electronics, do not attempt to repair. Whether you suffer fatal electrical shock. Instead, contact the nearest service centre.

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Hello
If there is sound output from its speakers, when turn ON, and catches a transmission, the fault must be to its Timing Contrrol board. This board also known as T'Con board. This is a common fault to all LCD tvs, irrespective of their brand.
If sound output also absent, the motherbaord [Main board] has the fault. Whicheaver it may, this is a skilled work, and can only be done by an experienced service techinician. If you know anyone such, just contact him/her.
Otherwise contact the nearest Authorised Service Center for Toshiba at your town. OK.

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1 Answer

Hi! I am experiencing the following three


Hi Rafael,

First of all thank you for posting your question here at Fixya.
Please confirm if the brand and model number above is correct.
Blinking of the the LED (yellow and blue) at the front panel indicating that the lamp door cover is not seated properly. This cover will engaged to a micro switch giving the signal to the processor, once it is in open position, the unit will not power up and will experienced that kind of blinking error code. Go back to the lamp door cover and ensure that it is properly seat-in.
3D, 2D, red/green/blue ghost on the picture and letters means that the convergence circuitry gone bad. Symptoms is not connected to the light engine. The faulty parts is the convergence chips(IC). This chips are mounted on the large aluminum heat sink and starts with STKXXXX-XX (X means number). The most common STK chips used on Projection TV's is the STK392-110. You have to replaced them both on the board to resolve the issue(red ghosting). It is necessary also to check the resistance value of the resistors around its circuitry using the multimeter. For more info how to repair a convergence problem, watch the video below.




Jdvillanueva

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1 Answer

I have a sony tv model kdf-50e2000,and it has a problem with the picture going blank,the only light that on or flashes is the green (POWER) light. when turning the set on the green light blinks as it...


You tv used lamp XL-2400 or also known as F93087500. It is very common for this bulb to fail and have the exact symptom you are experiencing. I cant count how many times I have seen it.. Replace the lamp with either the exact Sony or an OEM and you will be back in business..
Good Luck!!

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2 Answers

Soon after turning on, lose picture, then sound - it's like it's turning itself off


i have the same set with a bad screen if you need some parts let me know i'll give you a good price
email me at
caypianan@yahoo.com

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Good Day;
If you don't hear the relay click suspect Q003. No power suspect Q912, Q914 & I901. Good Luck, big IRISH.

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