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Luxor 40 LCD TV no sound


First, check the volume and mute settings, especially if there is another person in the house who may have changed them, and check another channel or input to ensure the signal source is not the problem. Next, verify that the sound is set to use the internal speakers, or that the external sound system is set to the input from the TV (some TVs with external sound output connections can be set to disable the internal speakers so they don't interfere with the external sound).

If you have no sound on any input, muting is off, and the volume indicator acts correctly, then the audio circuit on the main board is defective, or the audio power supply needs to be repaired. If your TV has a sound output connection that you have not connected, try connecting it to an external sound system and setting the TV sound to go to the external sound system. If it works, then you have narrowed the problem to the sound power amp in the TV, or to a bad power supply (some TV models have a power output specifically for the audio amplifier, although that is not common).

Most of the time, power supply failures in LCD TVs are the result of burned-out electrolytic capacitors. These are usually identifiable by the domed-up top of the capacitor, as pictured here. Note the flat tops on the good capacitors nearby. If you see these on the power supply board (the cable from the power board connector goes to the power supply), have them replaced with Panasonic FR-series capacitors; these usually have the best combination of price, power handling capacity and longevity.


badcap-xicusx0dpysc5g1km1evx250-5-0.jpeg

Sep 27, 2018 | Luxor Televison & Video

1 Answer

No sound on left channel on home stereo optimus sta-795 will changing fuse out restore sound


Not likely! Suggest swapping input connection, red RCA connector to white and white to red and see if problem swaps speakers.

If still left channel bad swap speakers left to right see if problem follows speaker.

Check balance adjustment and confirm that it is set to the middle!

Check all other inputs and confirm always no left output.

The goal is to confirm that the left channel is defective!

The service manual is MS3102101 would normally be available from Radio Shack.

Check for defective capacitors or failed solder joints on the PC board. These units are repairable even by DIY however replacement recievers are relatively inexpensive.

Hope this helps?



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26364739-n5uv4pl0imrm51spsuhjadcc-3-2.jpg

Nov 20, 2016 | Optimus Audio Players & Recorders

1 Answer

No video or audio


Hello,

The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.

The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board. You might be lucky it's just a blow fuse. Also a defective transformer can cause your TV not to power on.

All these can be checked on the power supply board.

But more often bad capacitors causes problem on the power supply board. I do not think the power board needs replacement, rather those defective capacitors is causing this issue. Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.

The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)

You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.

What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).

You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors). After replacing these capacitor(capacitors) most likely the normal operation will be restored. Or you can by a refurbished complete power board to save you some stress.

Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.

If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.

I hope this helps.

Regards.

Jan 05, 2012 | Sony KV-35S42 35" TV

1 Answer

FXL3211B The TV just went black. The power still turns on and off. I went through to check inputs and unplug it and vice verca Thats all I can say .everthing is connenected. When I turn it on the blue...


Hello,

The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.

The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board. You might be lucky it's just a blow fuse. Also a defective transformer can cause your TV not to power on.

All these can be checked on the power supply board.

But more often bad capacitors causes problem on the power supply board. I do not think the power board needs replacement, rather those defective capacitors is causing this issue. Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.

The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)

You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.

What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).

You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors). After replacing these capacitor(capacitors) most likely the normal operation will be restored. Or you can by a refurbished complete power board to save you some stress.

Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.

If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.

I hope this helps.

Regards.

Sep 26, 2011 | Element Electronics FLX-3211B 32 in. LCD...

1 Answer

Samsung 40 Inch LCD LNS4051D has voice but no video..video was going out from time to time, but now has complete gone out , but I still have voice. When powered on, i cannot even see in the uppe left...


Hi, probably the defect might be on the inverter board or power board. possibly there might be a loose contact since it encountered an intermittent events. check if it has a shadow like picture. If it has, it is in the inverter board. check some capacitor defect issues.

Apr 06, 2011 | Samsung LN-S4051D 40 in. LCD Television

2 Answers

I have the JVC 46' flatscreen, and it want come on. I press the power button and the blue light comes on (as if the tv was about to come on) but then it starts blinking.


Have you had the tv working before?

It sounds like the input/source is not correct.
Is there a button on the tv (or remote) called Input or Source?

Try pushing that.
If you're trying to watch cable tv, make sure the source is set to cable.
If trying to watch a move, make sure it's set to either HDMI or aux.

Hope that's the problem, and not anything more serious!
Have a good day :)

Mar 07, 2011 | JVC Televison & Video

1 Answer

Have no picture just sound


Your video board is defective.The sound indicates your power supply is working.Often the inputs are to blame and no signal is getting through.If a picture appears on TV mode then the problem is on the inputs-it could be loose and needs resoldering the terminals.But if it all happens on all functions then you need to replace the video board.In comes in between the input board processor and the video processor(the board that is terminated to the Plasma screen).

Dec 05, 2010 | Hitachi 55HDS69 55 in. Plasma Television

1 Answer

50PC1DRA Power Board - defective capacitor location


Hi Zzebra22,
I would suggest to watch the video from the link provided if your TV is behaving the same.
LG 50PC1DA Not powering up clicking sound no picture or sound Diagnosis

Aug 10, 2017 | LG 50PC1DRA 50 in. Plasma Television

2 Answers

Whirlpool front load washer GHW9100LW


Hi,

Appreciate the "Ask Me".

My compliments that you have determined that error code F06 indicates drive motor tach error. This relates to the controller board not sensing that the motor is spinning. This could be attributed to three (3) possibilities:
  • motor is not really turning/stuck, a replacement is required;
  • motor is turning but the sensor attached to it is defective and therefore not sending signals to the controller board. Pls check the terminals/connectors/wirings; and/or
  • the controller board input circuitry is defective. It does not register any input from the motor's RPM sensor. This could be a diode, resistor or logic IC. This would be component level repair requiring familiarity with electronic circuitry and components, use of a DVM and a soldering iron. It wold be easier to replace the entire controller board..
In some instances, it could just be the motor's capacitor that is defective. The capacitor provides the initial kick for the motor to start running. Failure on the capacitor will not kick start hence motor will not start hence RPM sensor says to controller board motor not running.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Aug 15, 2008 | Washing Machines

1 Answer

VGA


open it up and look for defective capacitors on the video input board and replace them. Should probably replace the 470uf caps on the power board while you are in there.

Jul 29, 2008 | Gateway FPD2185W 21 in. LCD Television

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