Question about Sylvania LC370SS9 LCD TV

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I have a Sylvania lc370ss9 hdtv. When I turn the power on the set remains black, the power indicator flashes green and the power button will not shut it off.

When I turn the power on, the set remains black, the power indicator flashes green and the power button will not shut it off.

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  • Steve Dec 04, 2012

    Thank you SD Tech. I feel pretty confident troubleshooting if you'd like to direct me to what to look at?

  • SD Tech
    SD Tech Dec 04, 2012

    first place to look is the power board for any signs of damage or puffed up filter caps, the first hurdle is getting the cover off safely---usually have to lay set face down supporting the entire frame around the screen, one wrong move or downward pressure in that position and the display itself can be destroyed===end of the set/ here are some pictures of what bad caps look like, range from very mild to severe.





  • Steve Dec 04, 2012

    I have the cover off and I've searched thoroughly for bulging caps as well as other signs of heat damage and no visual indicators are present.

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  • Sylvania Master
  • 14,553 Answers

The set has failed to come from standby to on fully---could be the power board but if it will not power off usually it is elsewhere.

Time to have a qualified shop take a look a get a estimate.

Posted on Dec 04, 2012

Testimonial: "Thank you SD Tech. I feel pretty confident troubleshooting if you'd like to direct me as to what to look at?"

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SOURCE: Sylvania LD320SSX turns off by itself.

your powersupply is dying in the set.. have it checked..

Posted on Apr 10, 2010

SOURCE: WHAT IS DIRECT TV CODE FOR SYLVANIA LC370SS9

hi! i have here a couple of codes for your tv! just try them 1004, 1007, 1018, 1027, 1047, 1056, 1057, 1059, 1060, 1061, 1103, 1124, 1145, 1150, 1153, 1279, 1296, 1387, 1464, 1483,1046, 1465,1150, 2092, 1464, 2408, 1465, 2260, 1027, 2064, 3105, 1124, 2078, 3088, 1296, 2213, 3147, 1145, 3095, hope this helps!!! goodluck!!!

Posted on Jun 07, 2010

walesarumi
  • 6993 Answers

SOURCE: I have a Sylvania LC370SS9

Hello,

Your unit being stuck in standby mode is an indication that its having a power problem. Remove its plug from the wall and fix it back into the wall, then turn it on again. If its still stuck in standby mode, then the power supply board in the unit is the cause of the problem.

The power supply board might be defective and maybe that's why the unit won't power up. Its receiving power but it cannot transfer the current to the necessary part of the unit because a capacitor, diode, etc may have been faulty. Until these bad components are replaced, the unit might not come on.

This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.

I do not think the defective power board needs replacement, rather some defective capacitors are 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.

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.

Good luck.

Posted on Jan 01, 2011

  • 1 Answer

SOURCE: my Sylvania TV LC320Sl1 will

lori2scott...did you ever solve your problem? Mine is now doing he same thing and I dont know what to do. Thx pwest17

Posted on Feb 12, 2011

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SOURCE: How do you Wall mount

If you have a wall mount kit, it is fairly simple. You just find the place that you want the tv to go and find a nearby stud to install the mount. After that you will want a second person to help with either holding the tv up or screwing in the tv to the mount. There are four screw holes in the back of the tv to screw through the wall mount plate into the back of the tv. Check to make sure it is stable, then you have successfully installed the tv to your wall

Posted on Jun 17, 2011

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