Question about Seiki Televison & Video

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My Seiki 46 inch TV has no picture and no sound. The red and blue power light indicator do come on. What should I try to replace first? The mainboard, the power board, or the keyboard indicator board.

Posted by Anonymous on

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  • Seiki Master
  • 8,014 Answers

If you have access to a voltmeter and can measure the output voltages from your PS, see if they are within specs. If so then I would say the issue is what is being fed. And the main board deals with both audio and video so I would go that route.

Posted on Apr 29, 2017

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Posted on Jan 02, 2017

  • 1894 Answers

SOURCE: panasonic th-42pa20 plasma 42 inch tv

was that capacitor damaged?

Posted on Jan 11, 2008

  • 927 Answers

SOURCE: DP23 LED not lit on deflection board no picture on tv

Good Day, Gil;
Your problem is in deflection circuit (115+v) check these: FP05, DP15, Q777, QH01, TH01, T701, etc. BUT suspect C707 1k pfd, 2kv, and check all the pico fuses (brown) 2" to the right of cap. Good Luck, big IRISH.

Posted on Sep 01, 2008

  • 1 Answer

SOURCE: Clicking relay no picture no audio no power light red or blue

here is the schematics http://www.scribd.com/doc/33598674/Philips-42mf231d-Chassis-Tpe1-0u-Pa

Posted on Aug 14, 2010

  • 29 Answers

SOURCE: the tv stopped working, stuck

Unfortunately this particular model has a history of bad reports. Often related to plugging a laptop or other device into the VGA connector. If it is under warranty then press them to fix it. If it is not, you are probably better off moving on. Sorry.

Posted on Mar 24, 2011

SOURCE: My LG 37LG50 TV wont turn on ?

Are you certain the replacement power supply is good? A defective main board or power supply can cause this problem.

Posted on May 05, 2013

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1 Answer

Seiki TV no picture or sound


hi test the large diodes on the power board these can stop the led from firing up, thanks, ps send me a picture of the power board i'll show you the diodes

shaun

Jun 15, 2017 | Seiki Televison & Video

1 Answer

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Hello,

I would try the TV inputs. Tv/Video or the Source button on your tv remote. Select each input to see if picture comes on. If you have checked all cables and Inputs, I would check the wire from the TV to the cable box.

Jul 30, 2016 | Seiki Televison & Video

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Do the flashlight test from the video below.
I'm having similar problem, the backlight is not working, I'm trying to find how to replace/repair it.

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1 Answer

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What have you got? The inverter, the mainboard?

It'll be one or the other...

Jan 31, 2015 | Televison & Video

1 Answer

ELEMENT 46 INCH PICTURE WENT OUT ,SOUND WORKS OK. RED DISPLAY LIGHT IS ON WHEN OFF, BLUE LIGHT WHEN ON


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Jan 22, 2011 | Televison & Video

1 Answer

No picture or sound/wont power up


Your mainboard is damaged, the mainboard is the one where you plug all the cables (component HDMI), it is really easy to replace, you only need to take special care with the screws.
1. remove all screws in the back.
2. unplugg all cables from mainboard.
3. remove all srews from mainboard and replace it.
4. put all screws back and then plug all cables again.
5. double check all mainboard cables are properly secured.
6. Test TV.
7. put the back cover and secure it with the screws.

8. Enjoy your TV again.

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