Question about Philips Magnavox 27MS343S 27" TV

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My magnavox tv model num 50mf231d137 will not turn on it turns on then turns off with red light blinking

Green light comes on then a click sounds then the red light comes on flashing

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  • Philips Master
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How many times this standby/power light blinks at one time switch ON? Count it carefully. These blinks are fault indication, and known as blinking codes. From the number of blinks occur at one time switch ON; you can get an idea about the faulty circuit stage inside the TV. This will make repair easy. For more information google.com/+GopakumarGopalan

Posted on Nov 19, 2013

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Philips 34PW9817 34" Shouts off and red light continuously blinks

I am having the same problems with my 34PW9817. I spoke with someone at a Philips service depot today regarding the problem and they suggested that I unplug the unit and leave it that way overnight. The tech told me that more often that I would expect, this solution fixes the problem. They mentioned something about this allowing the microprocessor to reset itself. If that doesn't work then I am supposed to expect a repair of between $210 and $265 for problems relating to the power supply. The backlog on getting the unit in and out of the service depot is about 5 days for my area (Denton, TX). I am planning to try the reset tonight but do not expect this to really do much. The problem didn't start until my last move (San Antonio -> Dallas) and other than this, I have had excellent service and picture quality out of the unit. Will update this post after I rectify the problem. David

Posted on Mar 13, 2007

  • 2 Answers

SOURCE: tv won`t turn on

replaced power supply

Posted on Apr 13, 2009

maatmartin7
  • 1213 Answers

SOURCE: magnavox: 37MF231D/331D/321D

Calm down Calm down. The problem is quite simple. You need to change one maybe two capacitors. Upon removing back cover. Look to the left, after removing foil tape, remove screws and flipover the board. The first cap to go down may have abulge on top or black tar oozing out the top. It is a 25volt 2200mf cap gone bad. Replace it. Second, sometimes and just sometimes next to thatone is 35volt 1200mf cap goes bad......remember just sometimes. You may have to replace it as well.

Posted on Jun 30, 2009

goinfast4fun
  • 1 Answer

SOURCE: my tv fickers and shuts off ?

SYMPTOM:
Clicks and turns off after turning on set when cold. Have to turn on and off several times to work, or keep changing channels, right side of screen is black for a while.
PROBLEM: It is almost always a bad transistor and a bad capacitor. (about $0.70 in parts)
SOLUTION:
This repair is fairly straightforward. You will need a soldering iron, a solder ******, and a small torx bit. Unplug the set. Lay the TV on the floor, screen down. Remove the torx screws holding the rear cover on. There should be 10, (don’t forget the 2 by the input panel). You will see 2 circuit boards, the one of interest is the large one near the bottom of the set. This board has a retainer clip on each side that needs to be pulled out to allow the circuit board2.gif to slide out. Slide the board out about 5-6 inches. You might need to support the board so it doesn’t slide back down into the TV set. This circuit board should have numbers by each of the components. You want to look for 7461 (transistor) and 2455 (capacitor). They are located right next to each other near the center of the board. The transistor will usually overheat and discolor the circuit board immediately around it. Warm up the soldering iron and get the solder ****** ready. Heat up the solder joint while removing excess solder with the ******. Once the transistor and capacitor are free, check the numbers on each. The capacitor (round cylinder) should have “47uf” on it. The transistor should have “C33725” on it. You can order these parts from Digi-Key (google it) for about $2.50 including shipping if you use USPS option. The part numbers are: 493-1060-ND for the capacitor and BC33725-ND for the transistor. Once you get your parts, solder them in and check TV operation. It should work as it did before. This repair can be done by anyone familiar with a soldering iron in about 30-45 minutes their first time. Good Luck!!

Posted on Sep 17, 2009

  • 6 Answers

SOURCE: My Magnavox plasma screen tv, model number:

You either have a cold solder joint in your horizontal deflection circuits or your or in your horizontal output circuit. please be careful due to the fly-back transformer still holds power even unplugged until you discharge it.( ground it out). Hope this helps.

Posted on Jan 03, 2010

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