Question about RCA L32HD31 32 in. LCD HDTV

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No picture or sound show tv is turned on

The light appears as if turned on but no sound or picture

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Hello,
There are two places to look for the problems, the backlight inverter board and the power supply. Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc. Look for 5vdc, 12vdc, and 24dvc.
wikipedia.org/wiki/Capacitor_plague
shopjimmy.com
Hope this will help...

Posted on Jun 01, 2010

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SOURCE: tv does not turn on

tv won't turn on, if unplug for a second and replug it turn's on.

Posted on Jul 18, 2009

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Toshiba LCD 2009 TV picture won't show when turned on but sound works fine. Picture shows after 4-5 minutes. Help...


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/
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.

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1 Answer

Emerson TV no picture, but still have sound


If this is an LCD TV, show a flash light (torch light) on the screen from a safe distance.
If you can see the picture, the backlight has gone off and might need
of a qualified service technician.

Aug 05, 2012 | Emerson Televison & Video

1 Answer

Tv does not turn on


tv won't turn on, if unplug for a second and replug it turn's on.

Jul 18, 2009 | Televison & Video

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My samsung TV won't show any picture/sound.


When the TV is on, need to check the back light is on(go back side & look into through)

If the back light is on -- need to exchange the Main Board
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exchange the LCD panel --- 5%(inverter)

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1 Answer

No picture but has sound


The problem can be caused by a bad sustain board (Ysus Zsus) , the popping sound is often caused by a capacitor blowing up.
The TV must be taken apart and tested before eventually replacing sustain boards.

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My LG TV
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Samsung TV stopped displaying picture


No picture but sound can mainly be of two problems, most of the times it is caused by a faulty vertical deflection ic, you can diagnose this by slightly increasing the screen voltage by turning the screen control on the LOT, a horizontal line will appear if the vertical ic is shot, and the other problem is the CRT base, but this is less common for shot base won't go off at once, it will show picture faded in the beginning. Now another problem could be the horizontal output transistor, if the tv has a high power sound output, the sound power supply will come from smps itself instead of from LOT, check that too, to confirm this, check if the CRT filament is glowing. Good luck.

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2 Answers

No picture but has sound


have a 42 inch rca 42PA30RQ NO PICTURE OR SOUND WHAT CAN I DO MY SELF BEFORE SPENDING A LOT OF MONEY TAKING TO A REPAIR SHOP

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