Question about Philips Magnavox 27MS343S 27" TV

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Intermittent Defect on LCD TV

Approx 1 hr after switch on, the right side of screen flickers and shortly after this a vertical band of approx 5cm appears. The colour of this band varies with the dominant screen colour of the moment.Have had set with local engineers who found that on removal of back of set the problem does not appear, however on taking same home the problem reappears as above. The set is a Phillips 26" lcd PF9946

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  • comey34 Mar 13, 2008

    Thanks, but set is almost 3yrs old

  • BigRick56 Mar 30, 2008

    I'm having the same issue with my Philips 26" LCD tv. Any suggestions on what to do?

  • Anonymous Mar 16, 2014

    tv is switing off with a approx 2 cm dia colour dot above the screen center . suspecting this is happening during some voltage fluctuations . what may the issue

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  • 1,153 Answers

If new, you should not remove anything, just send back to store or Manufacturer

Posted on Mar 13, 2008

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We have a panasonic tv, model pt-60lc13, bought new in 2003. we use it less than 1 hr per day (last year we watched 2 movies). today, I turned the tv on, the green power light would blink slowly for...


This sounds like a power supply problem, or a vertical issue. The Panasonic sets are one of the best tv's out there and generally worth fixing, but it will need a tv technician to resolve the issues.

Jan 16, 2011 | Panasonic Standard (CRT) Televisions

1 Answer

Panasonic TX-68PS12A Picture shrinks in vertical direction at top and bottom over period of 15 minutes until vertically compressed picture occupies approx 1/3 of the screen in a central band


Ur Vertical/Horizontal ic is cold solders,U know how to solders?Take the tv aparts use a back handle of the screw driver tabs around find out where V/H the cause resolder that.

Oct 22, 2009 | Standard (CRT) Televisions

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3 problems 1. TV shuts off and on automatically. 2. 2 inch band on left side of screen 3. No picture at all


The band or shadow on the left side of the screen definitely sounds like a defective light tunnel.As for the intermittent pix and shut down this could be the lamp if you have not already changed it.

Oct 15, 2009 | Samsung DLP HL-P5663W 56" TV

1 Answer

MY LCD HDTV 15 INCH TV HAS A PROBLEM I DO NOT HAVE PICTURE ONLY VOICE IT WAS PURCHASE ON 10/27/08 WHAT CAN I DO TRIED EVERYTHING


1.In this case the problem is usually found in the high voltage power supply.Most probably is the vertical IC defect.
Warning : This procedure has to be done by an expert.It is risky and can cause death to those who dont have knowledge in repairing.
A.) Open the unit and try adjusting the screen variable found in the flyback transformer. Notice any pattern on the screen of your tv.If their is a horizontal white line on the screen the defect is the vertical IC,replacing it can remedy the problem. Also check the 24v supply of the vertical IC coming from the flyback transformer.If their is no 24v get the resistance of the fuseable resistor and rectifier diode.Usually the resistor opens and the diode create short circuit.
B.)For most, make sure that their is no loss contact or cold solder on the board.

Jul 09, 2009 | Standard (CRT) Televisions

1 Answer

Rca 62" PROJECTION FLATSCREEN - COLOR PROBLEM/FLICKERING SCREEN


Sounds like the red picture tube could be shorting internally which would cause the "all red" condition. In which case you'd have to replace the red tube. Are there horizontal (slightly slanted) lines through the picture as well when this is happening and a very very bright screen? If so it's most likely the tube.

Oct 06, 2008 | RCA F36645 TV

1 Answer

Panasonic CT-32G6E Intermittent single horizontal line


I would suggest to locate a part that looks like the one on this link and re solder all the pins, also check for any high power resistor nearby the IC295890 and put some fresh solder.
Let me know if you need further assistance.

Aug 07, 2008 | Panasonic CT-32G6 32" TV

1 Answer

Can't adjust screen


HAI,REPLACE MAIN FILTER(CAPACITOR)IN VERTICAL SECTION.

Jul 05, 2008 | Zenith Standard (CRT) Televisions

1 Answer

Diamond TV


The vertical height driver that controls the height of your picture has weakened and needs to be adjusted. If you are somewhat handy you can do this yourself. It requires that you gain access to back of the set & remove the cover. Once removed, locate the vertical height & centering adjustments. Sometimes they are located on the main board & other times are located on the color gun driver circuit board that is plugged into the end of the picture tube.

Respond to this post if you need additional assistance. Good luck!

Mar 14, 2008 | Standard (CRT) Televisions

1 Answer

Philps TV problem


When I turn the TV on, I get a horizontal line across the screen approx 1/3 from the top. My TV make is Diamond and is approx 6 yrs old

Mar 14, 2008 | Philips Magnavox 27MS343S 27" TV

1 Answer

JVC AV-F29MX3


You have what sounds like a failing vertical output IC also could be some bad capacitors. If you are able to solder it would cost a few dollars to try this and see if it fixes it. If not you would need to replace the whole board itself and that could cost you a little bit more money. If you need a tech it is time to get rid of it you are looking at at least 200 dollars for repair.

Feb 06, 2008 | JVC AV-F29MX3U 29" TV

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