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Sansui LCDTVS2230YV is st.by mode or no work remot power buttan&no work panal power batan power suply 12v&5v is ok pless help

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Check the remote control for its infra-red emission. Check it with fresh batteries. Check by pressing all the buttons on it; and see whether all of it generates infrared signal while pressing. If it is found OK, check and replace the infrared sensor inside the TV. If you wish to get some details; check the site linked here. It has details about how to check a remote control; by one among the post. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ If the remote control is found OK; check and replace the infra-red sensor inside the TV. Contact any service technician

Posted on Nov 09, 2014

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5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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electricdime
  • 434 Answers

SOURCE: When plugged in, the

It is probably the capacitors on the power supply. Check them. I think there are 3 in a row. They are red in color and 450W. There is also a larger one next to them but I do not remember the volts.

Posted on Dec 04, 2010

budmrtn
  • 11361 Answers

SOURCE: When plugged in, the logo flashes white.

The 5vdc standby is working but not the 12 or 24v?
You need to find out if the power supply board is getting PS_ON signal from the main board to turn on the 12/24vdc power supply section.
Please read my guide to get some understanding first.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com just make sure to use caps with low ESR, 105c rating such as PANASONIC FM or FC series.
Please post back what you find.

Posted on Dec 06, 2010

Ecollier2012
  • 3459 Answers

SOURCE: 5v present on stb voltage

Plasma and LCD TV sets are prone to having capacitors in the power supply section fail. This is the most likely cause for the probem you describe. When capacitors fail your will commonly see one or more of the following symptoms.

  • No video, Power light is on or blinking.
  • TV is making a clicking noise.
  • TV takes a while to come on
  • Screen is very dim or flickers.

Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

Here are pictures of capacitors...Notice that the ones below look bloated. They have failed and will need to be repalced.


ecollier2012.jpg
Capacitor being replaced! Fairly easy DIY fix.

ecollier2012_0.jpg
Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit

Posted on Jun 10, 2011

SD Tech
  • 14553 Answers

SOURCE: have vizio vw46lfhdtv10a won't turn on

The other expert here is right--main is not being turned on and either main board or power supply could be bad.

Posted on May 01, 2012

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