Question about Sansui D 27" TV275 TV

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Tv off tv on but no raster no picture no sound

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  • Jad4 Dec 19, 2008

    TV LED light comes on when switch TV on then goes off again. No picure, no sound. Was working fine yesterday.

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My sansui tv is on no picture is coming but audio is working perfectly why?

Posted on May 19, 2010

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Check the requirment of the tuner

Posted on Oct 08, 2008

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1 Answer

Panasonic CT-27G14A


Have you tryed both the front and the back inputs?

May 17, 2008 | Panasonic CT-27SL15 27" TV

1 Answer

No picture, no menu, black screen, no raster, sound ok


From your detailed description, it sounds that the main chroma processor IC has damaged. Raster means nothing, but the lighted screen that appears, when a TV is switched ON. For some brands, there will be a blue screen; when there is no signal input, and some others will have a bright white screen with some snow.
I advice you to contact any service technician, to get this TV repaired. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter".
http://electronicshelponline.blogspot.com/

Jul 07, 2014 | Standard (CRT) Televisions

1 Answer

No picture but has sound


First make sure that the brightness and contrast are turned up.If the screen is lit up (that is you have a raster) then the problem would be in the video circuits.If the screen is not lit then you have a problem in the deflection circuits.A good possibility,with no raster,would be the Horizontal output amplifier.If you are not familiar with circuitry you would need a tv tech.to do the repair.

Sep 14, 2013 | Toshiba 32AF43 32" TV

1 Answer

Toshiba CZ32V61 no picture


1) you have problem with the Raster
2) the main causes are a) raster b) picture c) sound d) synch
3) since this are not video, the problem is raster. your must
test the voltage from section horizontal out +125vdc+vertical output +80v+all other circuit +12vdc
4) test the power supply for defective. see the diagram attached

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Jul 12, 2012 | Toshiba CZ32V61 32" TV

1 Answer

KP-61HS30 has sound but no video


1) the problem you have is lack of raster , the problem in tv has 4 phase 1) raster 2) picture 3) synch 4) sound.
2) test the power supply , check the horizontal output +125vdc ,vertical output from +80vdc, +al other circuit +12vdc, if there are missing fix it, see the diagram attached.
3) TEST the signal from tuner,i-f, detector, AGC
GOD BLESS YOU
7_13_2012_10_41_28_am.gif

Jul 12, 2012 | Standard (CRT) Televisions

1 Answer

Can get power but no picture or sound


Is your Tv Raster is there? if not probably your Horizontal section of tv not functioning. Check the B+ first.

Jun 01, 2009 | Sanyo HT27546 TV

1 Answer

Sound problem


 

  1. no picture &no sound raster ok.

 

  1. your problem is in tuner to vif section.
  2. check supply to TUNER & VIF section .
  3. check loose contact in above section.
  4. check components in VIF section.
  5. for ckt open the web site & download it fron there as given here.
  6. hope this will help.
  7. good luck.

http://www.eserviceinfo.com/index.php?what=search2

Oct 11, 2007 | Standard (CRT) Televisions

1 Answer

NO PICTURE


do you see anything on screen.no picture doesnt mean no raster ,raster mean anything that comes out in display.no raster with sound only mean failure in either,connection in heater which means, loose connection or some new sets declare failure in vertical circuit.so be more specific ok?

May 08, 2007 | Sony FD Trinitron WEGA XBRKV-40XBR800 40"...

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