Question about Sansui TVS2750 27"

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Sansui sv2918 no picture blue screen white lines sound ok

When the tv is switched on, a black and whit pic appears for 10sec the the screen turns blue and white horizontal lines appear.
Note - sound is ok

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5 Suggested Answers

bkvinr
  • 76 Answers

SOURCE: Horizontal White Line

In your statement i found during switch on you get picture. Check whether in a few minute picture suddenly goes to the horizontal line or height reduces and then goes to line. If suddenly goes means change any zener diode in pumpup circuit. If it is not means LA 7840 ic getting imbalanced supply voltage i.e.,negative and positive voltage are not equal. Suppose only one vcc means supply resister getting high ohms and change the the supply resister.

Posted on Aug 24, 2007

  • 1694 Answers

SOURCE: Sansui SV2918 has no picture and audio only a blue screen

Have you tried the a / v inputs?? If they work,might be a bad tuner.If they don't work,then your symptom is no video-no audio=
power supply problem? Check all voltages....T.

Posted on Oct 25, 2007

SOURCE: sansui tv sv2918

Sweetch on thr tv just one vertical line comming in center of ty screen

Posted on Jun 20, 2008

  • 1 Answer

SOURCE: sansui tv sv2918

replace vert IC301, C432, ( D431 & R431 should also be blown)

Posted on Nov 26, 2008

  • 978 Answers

SOURCE: Powersupply Faulty

Check for short circuit on your Powersupply. If you can isolate it, much better. check the voltage regulator if it supplies power to the system. better still check the regulator itself.

Posted on Jul 10, 2009

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1 Answer

Sansui sv 3220 lcd screen just white,but sound ok


T'Con board fault. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Jan 23, 2015 | Sansui Televison & Video

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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 | Televison & Video

1 Answer

I want to connect sansui dvd to Samsung led television


There are typically 3 ways depending on the age of the dvd player.

Red White and Yello RCA Jacks (Out) of DVD to (IN) on tv Red, Green, Blue rca Jacks and red and whit rca jacks(Sound) Or, an HDMI cable which transfers both sound and picture.

Jun 17, 2014 | Televison & Video

1 Answer

Hi.. Mine is a sansui tv and I bought it 3 years back. Now it is showing a horizontal line on the screen. Sound is fine but I can't see the picture, I just see one white horizontal line on tv...


The problem is vertical failure. Vertical output section to your TV ahs the fault. You ahve to check the vertcial output circuit for any component failure or loose solderings.

May 11, 2012 | SansuiS3275 TV

1 Answer

My tv is lcd projection.model no is shid5221h.today when i switch on the tv blue screen appeared. sound was ok.but barely show images in blue screen with shaded horizontal white strips.can u please help me...


Hello,

All lasma an lcd ts have boards that control vertical and horizontal output to their respective areas. They are connected to the screen by ribbon cables. If one of these boards fails all together, has a failed chip, a bad connection, or a bad ground somewhere it will result in a black line in the area of that board. A bad ribbon cable connection on the bottom will result in a vertical black bar though the screen. Many times reseating the connection will fix it, if the ribbon cable has been nicked there could be a severed connection. They an sometimes be fixed, but it is a pain. An yes I have done it, but the bar is gone. The same will happen if the chip that outputs to that area opens. The connectors are the first place to look paying close attention to the cable, they are extremely delicate so great care must be taken if you decide to tinker with em, the usually have lift locks that release them, but it is very easy to wreck em.
Good luck.


Jul 30, 2010 | Televison & Video

1 Answer

Horizontal white lines 27A43.


You have some bad capacitors. They are located very near and next to your vertical IC. I would guess you would have to replace maybe four of these! Thanks for asking!

Jun 12, 2010 | Toshiba 27A43 27" TV

1 Answer

TV BLACK SCREEN WITH THE POWER ON.


It needs repair.
If the line is vertical, then something is damaged on its horizontal circuit section on the mainboard.
If the line is horizontal, the vertical circuit section is damaged.
have it repaired to a qualified service center or person!
avoid switching it to avoid further damage on other parts!

May 28, 2009 | Philips 32RF82S TV

1 Answer

Blue Screen with thin horizontal white lines


THI IS THE INTERNAL CIRCUTRY FAULT BEST YOU
call the service person and dont try to open it other than in side of TV SET HAVING Hazard of electrical shock be handle most care fully .
and check video board and all.

Oct 19, 2008 | Philips Magnavox 20MS233S 20" TV

1 Answer

Philips 27PT6441 27" TV Problem


jon5902,

Pls note that my experience is with the phillips 27" model27PT6341/07. It may not be the same board as yr model, as I can't remember nor find the service manual anymore. (browse around online for it though)

However, after taking the back off. Look close to the rca jack and svideo connection. Mine is located about an inch from the svideo connection.

Here are some pics that may help you.
http://farm4.static.flickr.com/3215/2337629026_eaa30cfa18.jpg?v=0

http://farm3.static.flickr.com/2411/2337627420_b45bbf1a74.jpg?v=0

The new one is the black and gold one marked 10uf 100v in the pic.
Other users have advised to go as high as 10uf 250v, to avoid having the cap overload again.

PS. I had the lines for about 2 weeks. They got steadily worse then one day my tv looked like it was broadcasting an hourglass. The lines converged in the center and flared outward (no pic).

Sep 10, 2008 | Philips 27PT6441 27" TV

1 Answer

Lines on tv screen


Both sound like bad LCD panels. The following must be answered to confirm this:
Do the lines appear on all inputs/all signal sources?
Can they be seen in the OSD/menu?
If yes to both questions, it is likely that the LCD panel is bad

Jul 19, 2008 | Sony BRAVIA KDL-32S2000 32 in. LCD HDTV

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