Question about Toshiba MW27F51 27 in. TV/VCR/DVD Combo

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Straight line turned the tv on heard a pop and a straight line shows on the picture tube.

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  • katsnide Jan 21, 2009

    My tv did the exact same thing this week. I am having trouble finding the part number for a vertical output transistor. A lot of transistors are listed for this tv but don't know which one to order. Any help?

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You need to replace the vertical output transistor. part are available online at www.digikey.com

Posted on Oct 17, 2008

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When I turn on tv,it shows a white screen and don't anything do


Hello
You haven't specified anything about your TVs sound condition. If the sound is there and only the picture is out, leaving a white screen behind, it is due to the R-G-B output section of your TV. The section mentioned above comes on the picture tube base card, a circuit board connected on the neck of the picture tube, directly pluged onto it, with the help of a socket called picture tube base socket. You just measure the voltage to it first. The main voltage comes to it from the secondary voltage winding from the line output transformer, [LOT], generally, or from the SMPS power supply itself. It will come upto 260VDC, and must be there. If this voltage is missing, the fault you mentioned will occur. If this voltage is there, the fault may be due to a decective video output section. It may be built in with transistors, or an integrated circuit [IC].
Usually, Samsung uses Philips IC, number [TDA 6007B], or its equivalent in this stage. Check for any loose, or bad soldering on the terminals of this IC. I advice you to resolder all the pins of this Ic, by applying a little more soder, without making any short circuit bridges in between them. zin most cases, this will solve the problem. If it doesn't help, replace the IC with an identical in type and number.
If you wants anymore asistance, feel free to get me through Fixya. OK.

Dec 20, 2010 | Samsung CSN2077 20 in. TV/DVD Combo

1 Answer

The TV flickers off and on causing the screen to go black intermittently when our furnace runs. If we turn the furnace off, the picture straightens up and when we turn the furnace back on, the picture...


The TV could be wired to same breaker on the furnace. Or the cable line maybe cut or rubbing on electric line for furnace which can cause interference. Check each wire make sure there isn't any bare wire showing. good luck

Mar 29, 2010 | LG RU-23LG10P 23 in. TV/DVD Combo

1 Answer

LOUD POPPING NOISE WHEN TURN ON TV


This set has a high voltage leak at the picture tube. This is a dangerous circuit so you may want to have a shop check it out for you. Continued use may damage it beyond repair. Thanks for using fixya.

Nov 29, 2009 | Toshiba Televison & Video

1 Answer

Green line in middle of tv when switched on


Is there a picture with the green line going through the centre. If it`s just a green line with no picture, it sounds like the Frame (Vertical scan) Output IC has failed and possibly the safety feed resistor near the LOPTX. The reason why it`s a green line is to protect the tube from phosphor damage. The older TV`s would produce a VERY bright white line across the screen which could burn the phosphors withing the tube if left turned on in that condition. It`s not an expensive repair, but is it worth it with the price of Modern TV`s nowadays. If there is a picture with a green line, it may be due to phosphor damage, in which case, it`s a new CRT (tube). Ian

Jul 15, 2009 | Panasonic Televison & Video

1 Answer

A thin line appears on the screen,when turned on


we bought a new set, the tube on the old one was burnt out

May 14, 2009 | Philips Magnavox 24MC4306 24" TV/VCR/DVD

2 Answers

SONY TV MODEL # KP-65WV700 SER.# 9002706


Blue Gun is right side of TV if you look in TV from back side. Part number is as follows..

8-733-663-25 {CRT 07MVC62(B)-L} [KP-65WV700 ONLY]

Mar 13, 2009 | Sony Televison & Video

1 Answer

32 inch tv/dvd combo, has sound but no picture. Upon turning it on we get a momentary flash of a picture, and that all. The screen goes blank.


it sounds to me your tube has gone, there cheap to replace just pop down to your local tv shop they should be able to get hold of one for you.

hope this helps...

Mar 10, 2009 | Toshiba Televison & Video

1 Answer

Sound only


Means the TV is foobar. How do you connect it? TV Aerial, cable, RCA, SCART, S-Video, Composite, HDMA. Checked your cables, made sure they are all snug? Made sure your source (eg DVD player) is OK?

Dec 27, 2008 | Toshiba MW27FN1 27 in. TV/VCR/DVD Combo

2 Answers

TV wont come on


the picture tube is most likely not out. but there is a problem in the high voltage transformer part of the set( this is what fires up the picture tube). a problem like that can be just as expensive as a new picture tube. if it's not still in warranty it would be cost prohibitive to repair.

May 02, 2008 | Televison & Video

3 Answers

Tv toshiba vertical problem


I had white lines 4" thick vertically for about a week, then one day powered the unit up and with in 3 seconds there was a loud pop from the rear or the unit. Any one know what needs to be replaced?

Jan 23, 2008 | Toshiba MW27F51 27 in. TV/VCR/DVD Combo

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