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I have a rca led65g55r120q the tv has no sound the led lights are flashing on and off i replaced power supply board the main board and the tcon board and it still does it

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 195 Answers

SOURCE: olevia 437-s11

Most likely the CCFL inverter has been the problem all along....

Posted on Oct 10, 2009

  • 517 Answers

SOURCE: I have a olevia model 232-s12 tv has sound but no

Good day.

If you already replaced a new inverter board and T-con board and the problem is still there.Try to play the video on the DVD,if the video is OK check the cable connection and try to run auto scan.
If the problem is still there check the input supply of the system board or main board it should have 5vdc and 12vdc,if it is OK replace the system board.

Review this manual page 4-1 abnormal display http://www.scribd.com/doc/36875894/Olevia-232-S12-SM

I hope this solution will be helpful.Thank you for using FixYa.

Posted on Apr 17, 2011

  • 162 Answers

SOURCE: No picture or sound with a red flashing power light. Have replaced the convergence IC's but no change (do not have the chirpint sound). Removed main power board & green LED does not light up

On that model the conv IC is usually not the solution. I believe its the blown capacitor problem with is an easy fix. Check the site www.TvRepairKits.com for a repair kit.

Posted on Apr 13, 2012

gopakumarg43
  • 73698 Answers

SOURCE: Replaced power supply board and main board on Element ELDFW462 TV.Now I have no power on TV.Can you help me?

Contact any service technician. This is not a service work; can be done with ease by a customer. Especially who is not aware in electronics. Gopakumar Gopalan Google

Posted on Jan 05, 2015

skippy101
  • 143 Answers

SOURCE: I got a 55 inch Samsung flat panel tv model # UN55D6000Sf Version H302 with standby light blinking 1 time in repeat. I have changed the power supply board, main board & tcon board but still no luc

since you have replaced the main parts in the tv already it is safe to say you have bad led strip these can be tested with a 12v dc power supply

Posted on May 30, 2015

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Have a samsung TV UN40H5203AFXZA will not turn on. When plugged in the stand-by light blinks seven times and goes off. Changed power,main and Tcon boards. 3 lights come on the Tcon board but go off.


Please un-plug the cable between the main board & the power supply, apply the AC power to it, if the back lights come on & still on, replace the main board; if the back lights did not come on, mostly the problem is defective back light LED strips.

May 08, 2017 | Samsung Televison & Video

1 Answer

My rca tv keep blinking on and off no sound i replaced main board power suuply board and tcon board still does it,is led65g55r120q model


Those 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.
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Apr 10, 2017 | RCA Televison & Video

2 Answers

LED TV, DSE GE6880 TV flashes when power on; no picture, with audio. No backlights, has picture with flashlight test Have tested LEDs - all working Infrequently TV turns on and works no problem!


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://electro-medical.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Jan 13, 2017 | Televison & Video

2 Answers

I have a rca model led65g55r120q tv flickers and no sound


Check all cables for loose connection, try another input for picture (DVD, BLu-Ray, etc). If none of the other inputs work then it's a panel problem (display) If one or more of the others work then it's a problem with either the tuner or the signal.

Jan 02, 2017 | RCA Televison & Video

1 Answer

What is the test for a flashing backlight?


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/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Oct 18, 2016 | Televison & Video

1 Answer

I have a Sony KDL-46EX720 that turns on, plays sound, but there is no backlight and I hear a constant clicking from the TCON board. It goes away if I disconnect the LVDS from the TCON. Thoughts?


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.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Mar 17, 2016 | Sony BRAVIA KDL-46EX720 46" 3D LED-LCD TV...

1 Answer

How to fix LG 47LN5200 TV?


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/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

Nov 30, 2015 | LG Televison & Video

2 Answers

LG 50ln5200-ub led TV . Has no picture but great sound . What is the problem ? I did the flashlight test and can see the faint picture which tells me the backlighting is out . This tv model is a Black...


usually bad power supply, Where did you source your part? return/exchange it. Bad LEDs/ possible but not as likely, Tcon working if you can see images with flashlight. You must also have backlight on signal from main board ,check for 3 to 5v on labeled connecter on power supply. UPDATE---47" & 50" LN series. This model has had LED problems if your TV acts as described by Mr. Hughes in is answer to this problem you have bad LEDs

Feb 16, 2015 | LG 50 Inch LED TV 50LN5200 LN5200 Series...

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